Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-05-20 20:44:39 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Merged in masayuki2009/nuttx.nuttx/hifive1-qemu (pull request #1078)

Browse Source 
HiFive1 with qemu

* arch: risc-v: Add include/.gitignore

* arch: risc-v: Add src/.gitignore

* arch: risc-v: Remove uncommon function prototypes in include/irq.h

* arch: risc-v: Add missing symbols and function prototypes in src/common/up_internal.h

* arch: risc-v: Add src/common/up_modifyreg32.c

* arch: risc-v: Enable include Make.dep in src/Makefile

* arch: risc-v: Fix stack coloration in common/up_createstack.c

* arch: risc-v: Add common/up_puts.c

* arch: risc-v: Add common/up_checkstack.c

* arch: rv32im: Move all logics from up_dumpstate.c to up_assert.c

    This change is same as other architectures like arm/src/armv7-m

* arch: Select ARCH_HAVE_STACKCHECK for RISC-V in Kconfig

* arch: risc-v: Add SiFive fe310 processor

    NOTE: Currently only tested with qemu

* boards: hifive1-revb: Add SiFive hifive1-revb board

    NOTE: Currently only tested with qemu

* tools: Add fe310 processor to configure.sh

Approved-by: Alan Carvalho de Assis <acassis@gmail.com>
Approved-by: Gregory Nutt <gnutt@nuttx.org>
This commit is contained in:
Masayuki Ishikawa
2019-11-28 20:37:24 +00:00
committed by Gregory Nutt
parent 4ae09a3b80
commit 7a8e9581ca
51 changed files with 4343 additions and 198 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/Kconfig
+1
View File
@@ -58,6 +58,7 @@ config ARCH_RENESAS
config ARCH_RISCV
bool "RISC-V"
select ARCH_HAVE_INTERRUPTSTACK
select ARCH_HAVE_STACKCHECK
select ARCH_HAVE_CUSTOMOPT
select ARCH_HAVE_STDARG_H
---help---
arch/risc-v/Kconfig
+10
View File
@@ -10,6 +10,12 @@ choice
prompt "RISC-V chip selection"
default ARCH_CHIP_NR5
config ARCH_CHIP_FE310
bool "SiFive FE310"
select ARCH_RV32IM
---help---
SiFive FE310 processor (E31 RISC-V Core with MAC extensions).
config ARCH_CHIP_NR5
bool "NEXT NanoRisc5"
select ARCH_RV32IM
@@ -39,6 +45,7 @@ config ARCH_FAMILY
config ARCH_CHIP
string
default "fe310" if ARCH_CHIP_FE310
default "nr5m100" if ARCH_CHIP_NR5
default "gap8" if ARCH_CHIP_GAP8
@@ -55,6 +62,9 @@ config NR5_MPU
if ARCH_RV32IM
source arch/risc-v/src/rv32im/Kconfig
endif
if ARCH_CHIP_FE310
source arch/risc-v/src/fe310/Kconfig
endif
if ARCH_CHIP_NR5
source arch/risc-v/src/nr5m100/Kconfig
endif
arch/risc-v/include/.gitignore
+3
View File
@@ -0,0 +1,3 @@
/board
/chip
arch/risc-v/include/fe310/chip.h
+36
View File
@@ -0,0 +1,36 @@
/****************************************************************************
* arch/risc-v/include/fe310/chip.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_INCLUDE_FE310_CHIP_H
#define __ARCH_RISCV_INCLUDE_FE310_CHIP_H
#endif /* __ARCH_RISCV_INCLUDE_FE310_CHIP_H */
arch/risc-v/include/fe310/irq.h
+117
View File
@@ -0,0 +1,117 @@
/****************************************************************************
* arch/risc-v/include/fe310/irq.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_INCLUDE_FE310_IRQ_H
#define __ARCH_RISCV_INCLUDE_FE310_IRQ_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <arch/irq.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Machine Interrupt Enable bit in mstatus register */
#define MSTATUS_MIE (0x1 << 3)
/* Map RISC-V exception code to NuttX IRQ */
/* IRQ 0-15 : (exception:interrupt=0) */
#define FE310_IRQ_IAMISALIGNED (0) /* Instruction Address Misaligned */
#define FE310_IRQ_IAFAULT (1) /* Instruction Address Fault */
#define FE310_IRQ_IINSTRUCTION (2) /* Illegal Instruction */
#define FE310_IRQ_BPOINT (3) /* Break Point */
#define FE310_IRQ_LAMISALIGNED (4) /* Load Address Misaligned */
#define FE310_IRQ_LAFAULT (5) /* Load Access Fault */
#define FE310_IRQ_SAMISALIGNED (6) /* Store/AMO Address Misaligned */
#define FE310_IRQ_SAFAULT (7) /* Store/AMO Access Fault */
#define FE310_IRQ_ECALLU (8) /* Environment Call from U-mode */
/* 9-10: Reserved */
#define FE310_IRQ_ECALLM (11) /* Environment Call from M-mode */
/* 12-15: Reserved */
/* IRQ 16- : (async event:interrupt=1) */
#define FE310_IRQ_ASYNC (16)
#define FE310_IRQ_MSOFT (FE310_IRQ_ASYNC + 3) /* Machine Software Int */
#define FE310_IRQ_MTIMER (FE310_IRQ_ASYNC + 7) /* Machine Timer Int */
#define FE310_IRQ_MEXT (FE310_IRQ_ASYNC + 11) /* Machine External Int */
/* Machine Grobal External Interrupt */
#define FE310_IRQ_UART0 (FE310_IRQ_MEXT + 3)
#define FE310_IRQ_UART1 (FE310_IRQ_MEXT + 4)
/* Total number of IRQs */
#define NR_IRQS (FE310_IRQ_UART1 + 1)
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
EXTERN irqstate_t up_irq_save(void);
EXTERN void up_irq_restore(irqstate_t);
EXTERN irqstate_t up_irq_enable(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_RISCV_INCLUDE_FE310_IRQ_H */
arch/risc-v/include/irq.h
-8
View File
@@ -67,12 +67,4 @@ typedef uint32_t irqstate_t;
* Public Variables
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
irqstate_t irqsave(void);
void irqrestore(irqstate_t);
#endif /* __ARCH_RISCV_INCLUDE_IRQ_H */
arch/risc-v/src/.gitignore
+5
View File
@@ -0,0 +1,5 @@
/.depend
/Make.dep
/locked.r
/board
/chip
arch/risc-v/src/Makefile
+1 -1
View File
@@ -229,4 +229,4 @@ info:
@echo $(ASRCS)
@echo $(CONFIG_ARCH_CHIP)
#-include Make.dep
-include Make.dep
arch/risc-v/src/common/up_arch.h
+18
View File
@@ -66,5 +66,23 @@
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/* Atomic modification of registers */
void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* ___ARCH_ARM_SRC_COMMON_UP_ARCH_H */
arch/risc-v/src/common/up_checkstack.c
+225
View File
@@ -0,0 +1,225 @@
/****************************************************************************
* arch/risc-v/src/common/up_checkstack.c
*
* Copyright (C) 2011, 2013, 2015-2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <sched.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/tls.h>
#include <nuttx/board.h>
#include "sched/sched.h"
#include "up_internal.h"
#ifdef CONFIG_STACK_COLORATION
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static size_t do_stackcheck(uintptr_t alloc, size_t size, bool int_stack);
/****************************************************************************
* Name: do_stackcheck
*
* Description:
* Determine (approximately) how much stack has been used be searching the
* stack memory for a high water mark. That is, the deepest level of the
* stack that clobbered some recognizable marker in the stack memory.
*
* Input Parameters:
* alloc - Allocation base address of the stack
* size - The size of the stack in bytes
*
* Returned Value:
* The estimated amount of stack space used.
*
****************************************************************************/
static size_t do_stackcheck(uintptr_t alloc, size_t size, bool int_stack)
{
FAR uintptr_t start;
FAR uintptr_t end;
FAR uint32_t *ptr;
size_t mark;
if (size == 0)
{
return 0;
}
/* Get aligned addresses of the top and bottom of the stack */
#ifdef CONFIG_TLS
if (!int_stack)
{
/* Skip over the TLS data structure at the bottom of the stack */
DEBUGASSERT((alloc & TLS_STACK_MASK) == 0);
start = alloc + sizeof(struct tls_info_s);
}
else
{
start = alloc & ~3;
}
#else
UNUSED(int_stack);
start = alloc & ~3;
#endif
end = (alloc + size + 3) & ~3;
/* Get the adjusted size based on the top and bottom of the stack */
size = end - start;
/* The ARM uses a push-down stack: the stack grows toward lower addresses
* in memory. We need to start at the lowest address in the stack memory
* allocation and search to higher addresses. The first word we encounter
* that does not have the magic value is the high water mark.
*/
for (ptr = (FAR uint32_t *)start, mark = (size >> 2);
*ptr == STACK_COLOR && mark > 0;
ptr++, mark--);
/* If the stack is completely used, then this might mean that the stack
* overflowed from above (meaning that the stack is too small), or may
* have been overwritten from below meaning that some other stack or data
* structure overflowed.
*
* If you see returned values saying that the entire stack is being used
* then enable the following logic to see it there are unused areas in the
* middle of the stack.
*/
#if 0
if (mark + 16 > nwords)
{
int i;
int j;
ptr = (FAR uint32_t *)start;
for (i = 0; i < size; i += 4*64)
{
for (j = 0; j < 64; j++)
{
int ch;
if (*ptr++ == STACK_COLOR)
{
ch = '.';
}
else
{
ch = 'X';
}
up_putc(ch);
}
up_putc('\n');
}
}
#endif
/* Return our guess about how much stack space was used */
return mark << 2;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_check_stack and friends
*
* Description:
* Determine (approximately) how much stack has been used be searching the
* stack memory for a high water mark. That is, the deepest level of the
* stack that clobbered some recognizable marker in the stack memory.
*
* Input Parameters:
* None
*
* Returned Value:
* The estimated amount of stack space used.
*
****************************************************************************/
size_t up_check_tcbstack(FAR struct tcb_s *tcb)
{
return do_stackcheck((uintptr_t)tcb->stack_alloc_ptr, tcb->adj_stack_size,
false);
}
ssize_t up_check_tcbstack_remain(FAR struct tcb_s *tcb)
{
return (ssize_t)tcb->adj_stack_size - (ssize_t)up_check_tcbstack(tcb);
}
size_t up_check_stack(void)
{
return up_check_tcbstack(this_task());
}
ssize_t up_check_stack_remain(void)
{
return up_check_tcbstack_remain(this_task());
}
#if CONFIG_ARCH_INTERRUPTSTACK > 3
size_t up_check_intstack(void)
{
return do_stackcheck((uintptr_t)&g_intstackalloc,
(CONFIG_ARCH_INTERRUPTSTACK & ~3),
true);
}
size_t up_check_intstack_remain(void)
{
return (CONFIG_ARCH_INTERRUPTSTACK & ~3) - up_check_intstack();
}
#endif
#endif /* CONFIG_STACK_COLORATION */
arch/risc-v/src/common/up_createstack.c
+35 -9
View File
@@ -175,15 +175,6 @@ int up_create_stack(FAR struct tcb_s *tcb, size_t stack_size, uint8_t ttype)
size_t top_of_stack;
size_t size_of_stack;
/* Yes.. If stack debug is enabled, then fill the stack with a
* recognizable value that we can use later to test for high
* water marks.
*/
#ifdef CONFIG_STACK_COLORATION
memset(tcb->stack_alloc_ptr, 0xaa, stack_size);
#endif
/* MIPS uses a push-down stack: the stack grows toward lower
* addresses in memory. The stack pointer register points to the
* lowest, valid working address (the "top" of the stack). Items on
@@ -206,9 +197,44 @@ int up_create_stack(FAR struct tcb_s *tcb, size_t stack_size, uint8_t ttype)
tcb->adj_stack_ptr = (FAR uint32_t *)top_of_stack;
tcb->adj_stack_size = size_of_stack;
/* Yes.. If stack debug is enabled, then fill the stack with a
* recognizable value that we can use later to test for high
* water marks.
*/
#ifdef CONFIG_STACK_COLORATION
up_stack_color(tcb->stack_alloc_ptr, tcb->adj_stack_size);
#endif
board_autoled_on(LED_STACKCREATED);
return OK;
}
return ERROR;
}
/****************************************************************************
* Name: up_stack_color
*
* Description:
* Write a well know value into the stack
*
****************************************************************************/
#ifdef CONFIG_STACK_COLORATION
void up_stack_color(FAR void *stackbase, size_t nbytes)
{
/* Take extra care that we do not write outsize the stack boundaries */
uint32_t *stkptr = (uint32_t *)(((uintptr_t)stackbase + 3) & ~3);
uintptr_t stkend = (((uintptr_t)stackbase + nbytes) & ~3);
size_t nwords = (stkend - (uintptr_t)stackbase) >> 2;
/* Set the entire stack to the coloration value */
while (nwords-- > 0)
{
*stkptr++ = STACK_COLOR;
}
}
#endif
arch/risc-v/src/common/up_internal.h
+50 -3
View File
@@ -116,6 +116,33 @@ extern "C"
EXTERN volatile uint32_t *g_current_regs;
EXTERN uint32_t g_idle_topstack;
/* Address of the saved user stack pointer */
#if CONFIG_ARCH_INTERRUPTSTACK > 3
EXTERN uint32_t g_intstackalloc; /* Allocated stack base */
EXTERN uint32_t g_intstackbase; /* Initial top of interrupt stack */
#endif
/* These 'addresses' of these values are setup by the linker script. They are
* not actual uint32_t storage locations! They are only used meaningfully in the
* following way:
*
* - The linker script defines, for example, the symbol_sdata.
* - The declareion extern uint32_t _sdata; makes C happy. C will believe
* that the value _sdata is the address of a uint32_t variable _data (it is
* not!).
* - We can recoved the linker value then by simply taking the address of
* of _data. like: uint32_t *pdata = &_sdata;
*/
EXTERN uint32_t _stext; /* Start of .text */
EXTERN uint32_t _etext; /* End_1 of .text + .rodata */
EXTERN const uint32_t _eronly; /* End+1 of read only section (.text + .rodata) */
EXTERN uint32_t _sdata; /* Start of .data */
EXTERN uint32_t _edata; /* End+1 of .data */
EXTERN uint32_t _sbss; /* Start of .bss */
EXTERN uint32_t _ebss; /* End+1 of .bss */
/****************************************************************************
* Public Functions
****************************************************************************/
@@ -129,13 +156,12 @@ void up_boot(void);
/* Memory allocation ********************************************************/
void up_addregion(void);
void up_allocat_eheap(FAR void **heap_start, size_t *heap_size);
void up_allocate_heap(FAR void **heap_start, size_t *heap_size);
/* IRQ initialization *******************************************************/
void up_irqinitialize(void);
void up_copystate(uint32_t *dest, uint32_t *src);
void up_dumpstate(void);
void up_sigdeliver(void);
int up_swint(int irq, FAR void *context, FAR void *arg);
uint32_t up_get_newintctx(void);
@@ -146,17 +172,38 @@ void riscv_timer_initialize(void);
/* Low level serial output **************************************************/
void up_serialinit(void);
void up_lowputc(char ch);
void up_puts(const char *str);
void up_lowputs(const char *str);
#ifdef USE_SERIALDRIVER
void up_serialinit(void);
#else
# define up_serialinit()
#endif
#ifdef USE_EARLYSERIALINIT
void up_earlyserialinit(void);
#else
# define up_earlyserialinit()
#endif
#ifdef CONFIG_RPMSG_UART
void rpmsg_serialinit(void);
#else
# define rpmsg_serialinit()
#endif
/* The OS start routine **************************************************/
void nx_start(void);
/* Debug ********************************************************************/
#ifdef CONFIG_STACK_COLORATION
void up_stack_color(FAR void *stackbase, size_t nbytes);
#endif
#undef EXTERN
#ifdef __cplusplus
}
arch/risc-v/src/common/up_modifyreg32.c
+73
View File
@@ -0,0 +1,73 @@
/****************************************************************************
* arch/risc-v/src/common/up_modifyreg32.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <debug.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include "up_arch.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: modifyreg32
*
* Description:
* Atomically modify the specified bits in a memory mapped register
*
****************************************************************************/
void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits)
{
irqstate_t flags;
uint32_t regval;
flags = spin_lock_irqsave();
regval = getreg32(addr);
regval &= ~clearbits;
regval |= setbits;
putreg32(regval, addr);
spin_unlock_irqrestore(flags);
}
arch/risc-v/src/common/up_puts.c
+64
View File
@@ -0,0 +1,64 @@
/****************************************************************************
* arch/risc-v/src/common/up_puts.c
*
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include "up_internal.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_puts
*
* Description:
* This is a low-level helper function used to support debug.
*
****************************************************************************/
void up_puts(const char *str)
{
while (*str)
{
up_putc(*str++);
}
}
arch/risc-v/src/fe310/Kconfig
+62
View File
@@ -0,0 +1,62 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
comment "FE310 Configuration Options"
choice
prompt "FE310 Chip Selection"
default ARCH_CHIP_FE310_G002
depends on ARCH_CHIP_FE310
config ARCH_CHIP_FE310_G002
bool "FE310_G002"
select FE310_HAVE_UART0
select FE310_HAVE_GPIO
---help---
FE310, RV32IMAC 32Mbit SPI-Flash, 16KB SRAM
endchoice
config FE310_G002
bool
default y
select FE310_HAVE_UART0
menu "FE310 Peripheral Support"
# These "hidden" settings determine is a peripheral option is available for the
# selection MCU
config FE310_HAVE_UART0
bool
default y
select UART0_SERIALDRIVER
select ARCH_HAVE_SERIAL_TERMIOS
# These are the peripheral selections proper
config FE310_UART0
bool "UART0"
default y
select ARCH_HAVE_UART0
select ARCH_HAVE_SERIAL_TERMIOS
select FE310_UART
endmenu
config FE310_UART_RX_BUF_SIZE
int "UART RX Bufer size"
default 64
depends on FE310_UART
---help---
Size of RX buffers for FE310 UARTs
config FE310_UART_TX_BUF_SIZE
int "UART TX Bufer size"
default 64
depends on FE310_UART
---help---
Size of TX buffers for FE310 UARTs
arch/risc-v/src/fe310/Make.defs
+62
View File
@@ -0,0 +1,62 @@
############################################################################
# arch/risc-v/src/fe310/Make.defs
#
# Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
# Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
#
# # Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
# Specify our HEAD assembly file. This will be linked as
# the first object file, so it will appear at address 0
HEAD_ASRC = fe310_vectors.S
# Specify our general Assembly files
CHIP_ASRCS = fe310_head.S up_syscall.S
# Specify C code within the common directory to be included
CMN_CSRCS += up_initialize.c up_swint.c
CMN_CSRCS += up_allocateheap.c up_createstack.c up_dumpstate.c up_exit.c
CMN_CSRCS += up_assert.c up_blocktask.c up_copystate.c up_initialstate.c
CMN_CSRCS += up_interruptcontext.c up_modifyreg32.c up_puts.c
CMN_CSRCS += up_releasepending.c up_reprioritizertr.c
CMN_CSRCS += up_releasestack.c up_stackframe.c up_schedulesigaction.c
CMN_CSRCS += up_sigdeliver.c up_unblocktask.c up_usestack.c
ifeq ($(CONFIG_STACK_COLORATION),y)
CMN_CSRCS += up_checkstack.c
endif
ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)
CMN_CSRCS += up_vfork.c
endif
# Specify our C code within this directory to be included
CHIP_CSRCS = fe310_allocateheap.c fe310_idle.c
CHIP_CSRCS += fe310_irq.c fe310_irq_dispatch.c
CHIP_CSRCS += fe310_lowputc.c fe310_serial.c
CHIP_CSRCS += fe310_start.c fe310_timerisr.c
arch/risc-v/src/fe310/chip.h
+45
View File
@@ -0,0 +1,45 @@
/****************************************************************************
* arch/risc-v/src/fe310/chip.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_CHIP_H
#define __ARCH_RISCV_SRC_FE310_CHIP_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "fe310_memorymap.h"
#endif /* __ARCH_RISCV_SRC_FE310_CHIP_H */
arch/risc-v/src/fe310/fe310.h
+54
View File
@@ -0,0 +1,54 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_FE310_H
#define __ARCH_RISCV_SRC_FE310_FE310_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdbool.h>
#include <arch/irq.h>
#include "up_internal.h"
#include "chip.h"
#include "fe310_lowputc.h"
#endif /* __ARCH_RISCV_SRC_FE310_FE310_H */
arch/risc-v/src/fe310/fe310_allocateheap.c
+54
View File
@@ -0,0 +1,54 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_allocateheap.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <arch/board/board.h>
#include "fe310.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_addregion
****************************************************************************/
void up_addregion(void)
{
}
arch/risc-v/src/fe310/fe310_config.h
+69
View File
@@ -0,0 +1,69 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_config.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_FE310_CONFIG_H
#define __ARCH_RISCV_SRC_FE310_FE310_CONFIG_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <arch/chip/chip.h>
#include <arch/board/board.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#undef HAVE_UART_DEVICE
#if defined(CONFIG_FE310_UART0) || defined(CONFIG_FE310_UART1)
# define HAVE_UART_DEVICE 1
#endif
#if defined(CONFIG_UART0_SERIAL_CONSOLE) && defined(CONFIG_FE310_UART0)
# undef CONFIG_UART1_SERIAL_CONSOLE
# define HAVE_SERIAL_CONSOLE 1
#elif defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_FE310_UART1)
# undef CONFIG_UART0_SERIAL_CONSOLE
# define HAVE_SERIAL_CONSOLE 1
#else
# undef CONFIG_UART0_SERIAL_CONSOLE
# undef CONFIG_UART1_SERIAL_CONSOLE
# undef HAVE_SERIAL_CONSOLE
#endif
#endif /* __ARCH_RISCV_SRC_FE310_FE310_CONFIG_H */
arch/risc-v/src/fe310/fe310_head.S
+212
View File
@@ -0,0 +1,212 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_head.S
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <arch/rv32im/irq.h>
#include "chip.h"
/****************************************************************************
* Public Symbols
****************************************************************************/
.global exception_common
/* Imported symbols */
.extern __trap_vec
.section .text
.global __start
__start:
/* Set stack pointer to the idle thread stack */
lui sp, %hi(FE310_IDLESTACK_TOP)
addi sp, sp, %lo(FE310_IDLESTACK_TOP)
/* Initialize the Machine Trap Vector */
lui t0, %hi(__trap_vec)
addi t0, t0, %lo(__trap_vec)
csrw mtvec, t0
/* Jump to __fe310_start */
jal x1, __fe310_start
/* We shouldn't return from __fe310_start */
.global _init
.global _fini
_init:
_fini:
/* These don't have to do anything since we use init_array/fini_array. */
ret
/****************************************************************************
* Name: exception_common
****************************************************************************/
exception_common:
addi sp, sp, -XCPTCONTEXT_SIZE
sw x1, 1*4(sp) /* ra */
sw x3, 3*4(sp) /* gp */
sw x4, 4*4(sp) /* tp */
sw x5, 5*4(sp) /* t0 */
sw x6, 6*4(sp) /* t1 */
sw x7, 7*4(sp) /* t2 */
sw x8, 8*4(sp) /* s0 */
sw x9, 9*4(sp) /* s1 */
sw x10, 10*4(sp) /* a0 */
sw x11, 11*4(sp) /* a1 */
sw x12, 12*4(sp) /* a2 */
sw x13, 13*4(sp) /* a3 */
sw x14, 14*4(sp) /* a4 */
sw x15, 15*4(sp) /* a5 */
sw x16, 16*4(sp) /* a6 */
sw x17, 17*4(sp) /* a7 */
sw x18, 18*4(sp) /* s2 */
sw x19, 19*4(sp) /* s3 */
sw x20, 20*4(sp) /* s4 */
sw x21, 21*4(sp) /* s5 */
sw x22, 22*4(sp) /* s6 */
sw x23, 23*4(sp) /* s7 */
sw x24, 24*4(sp) /* s8 */
sw x25, 25*4(sp) /* s9 */
sw x26, 26*4(sp) /* s10 */
sw x27, 27*4(sp) /* s11 */
sw x28, 28*4(sp) /* t3 */
sw x29, 29*4(sp) /* t4 */
sw x30, 30*4(sp) /* t5 */
sw x31, 31*4(sp) /* t6 */
csrr s0, mstatus
sw s0, 32*4(sp) /* mstatus */
addi s0, sp, XCPTCONTEXT_SIZE
sw s0, 2*4(sp) /* original SP */
/* Setup arg0(exeption cause), arg1(context) */
csrr a0, mcause /* exception cause */
csrr s0, mepc
sw s0, 0(sp) /* exception PC */
mv a1, sp /* context = sp */
#if CONFIG_ARCH_INTERRUPTSTACK > 3
/* Switch to interrupt stack */
lui sp, %hi(g_intstackbase)
addi sp, sp, %lo(g_intstackbase)
#endif
/* Call interrupt handler in C */
jal x1, fe310_dispatch_irq
/* If context switch is needed, return a new sp */
mv sp, a0
lw s0, 0(sp) /* restore mepc */
csrw mepc, s0
lw s0, 32*4(sp) /* restore mstatus */
csrw mstatus, s0
lw x3, 3*4(sp) /* gp */
lw x4, 4*4(sp) /* tp */
lw x5, 5*4(sp) /* t0 */
lw x6, 6*4(sp) /* t1 */
lw x7, 7*4(sp) /* t2 */
lw x8, 8*4(sp) /* s0 */
lw x9, 9*4(sp) /* s1 */
lw x10, 10*4(sp) /* a0 */
lw x11, 11*4(sp) /* a1 */
lw x12, 12*4(sp) /* a2 */
lw x13, 13*4(sp) /* a3 */
lw x14, 14*4(sp) /* a4 */
lw x15, 15*4(sp) /* a5 */
lw x16, 16*4(sp) /* a6 */
lw x17, 17*4(sp) /* a7 */
lw x18, 18*4(sp) /* s2 */
lw x19, 19*4(sp) /* s3 */
lw x20, 20*4(sp) /* s4 */
lw x21, 21*4(sp) /* s5 */
lw x22, 22*4(sp) /* s6 */
lw x23, 23*4(sp) /* s7 */
lw x24, 24*4(sp) /* s8 */
lw x25, 25*4(sp) /* s9 */
lw x26, 26*4(sp) /* s10 */
lw x27, 27*4(sp) /* s11 */
lw x28, 28*4(sp) /* t3 */
lw x29, 29*4(sp) /* t4 */
lw x30, 30*4(sp) /* t5 */
lw x31, 31*4(sp) /* t6 */
lw x1, 1*4(sp) /* ra */
lw sp, 2*4(sp) /* restore original sp */
/* Return from Machine Interrupt */
mret
/************************************************************************************
* Name: g_intstackalloc and g_intstackbase
************************************************************************************/
#if CONFIG_ARCH_INTERRUPTSTACK > 3
.bss
.align 4
.global g_intstackalloc
.global g_intstackbase
.type g_intstackalloc, object
.type g_intstackbase, object
g_intstackalloc:
.skip ((CONFIG_ARCH_INTERRUPTSTACK & ~3))
g_intstackbase:
.skip 4
.size g_intstackbase, 4
.size g_intstackalloc, (CONFIG_ARCH_INTERRUPTSTACK & ~3)
#endif
arch/risc-v/src/fe310/fe310_idle.c
+82
View File
@@ -0,0 +1,82 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_idle.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Based on arch/risc-v/src/common/up_idle.c
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include "up_internal.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_idle
*
* Description:
* up_idle() is the logic that will be executed when their is no other
* ready-to-run task. This is processor idle time and will continue until
* some interrupt occurs to cause a context switch from the idle task.
*
* Processing in this state may be processor-specific. e.g., this is where
* power management operations might be performed.
*
****************************************************************************/
void up_idle(void)
{
#if defined(CONFIG_SUPPRESS_INTERRUPTS) || defined(CONFIG_SUPPRESS_TIMER_INTS)
/* If the system is idle and there are no timer interrupts, then process
* "fake" timer interrupts. Hopefully, something will wake up.
*/
nxsched_process_timer();
#else
/* This would be an appropriate place to put some MCU-specific logic to
* sleep in a reduced power mode until an interrupt occurs to save power
*/
asm("WFI");
#endif
}
arch/risc-v/src/fe310/fe310_irq.c
+252
View File
@@ -0,0 +1,252 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_irq.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdio.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <arch/irq.h>
#include "up_internal.h"
#include "up_arch.h"
#include "fe310.h"
/****************************************************************************
* Public Data
****************************************************************************/
volatile uint32_t *g_current_regs;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_irqinitialize
****************************************************************************/
void up_irqinitialize(void)
{
/* Disable Machine interrupts */
(void)up_irq_save();
/* Colorize the interrupt stack for debug purposes */
#if defined(CONFIG_STACK_COLORATION) && CONFIG_ARCH_INTERRUPTSTACK > 3
size_t intstack_size = (CONFIG_ARCH_INTERRUPTSTACK & ~3);
up_stack_color((FAR void *)((uintptr_t)&g_intstackbase - intstack_size),
intstack_size);
#endif
/* Set priority for all global interrupts to 1 (lowest) */
int id;
for (id = 1; id <= 52; id++)
{
putreg32(1, FE310_PLIC_PRIORITY + 4 * id);
}
/* Set irq threshold to 0 (permits all global interrupts) */
putreg32(0, FE310_PLIC_THRESHOLD);
/* currents_regs is non-NULL only while processing an interrupt */
g_current_regs = NULL;
/* Attach the ecall interrupt handler */
irq_attach(FE310_IRQ_ECALLM, up_swint, NULL);
up_enable_irq(FE310_IRQ_ECALLM);
#ifndef CONFIG_SUPPRESS_INTERRUPTS
/* And finally, enable interrupts */
(void)up_irq_enable();
#endif
}
/****************************************************************************
* Name: up_disable_irq
*
* Description:
* Disable the IRQ specified by 'irq'
*
****************************************************************************/
void up_disable_irq(int irq)
{
int extirq;
if (irq > FE310_IRQ_MEXT)
{
extirq = irq - FE310_IRQ_MEXT;
ASSERT(31 >= extirq); /* TODO */
/* Clear enable bit for the irq */
modifyreg32(FE310_PLIC_ENABLE1, 1 << extirq, 0);
}
}
/****************************************************************************
* Name: up_enable_irq
*
* Description:
* Enable the IRQ specified by 'irq'
*
****************************************************************************/
void up_enable_irq(int irq)
{
int extirq;
if (irq > FE310_IRQ_MEXT)
{
extirq = irq - FE310_IRQ_MEXT;
ASSERT(31 >= extirq); /* TODO */
/* Set enable bit for the irq */
modifyreg32(FE310_PLIC_ENABLE1, 0, 1 << extirq);
}
}
/****************************************************************************
* Name: up_get_newintctx
*
* Description:
* Return a value for EPIC. But FE310 doesn't use EPIC for event control.
*
****************************************************************************/
uint32_t up_get_newintctx(void)
{
return 0;
}
/****************************************************************************
* Name: up_ack_irq
*
* Description:
* Acknowledge the IRQ
*
****************************************************************************/
void up_ack_irq(int irq)
{
}
/****************************************************************************
* Name: up_irq_save
*
* Description:
* Return the current interrupt state and disable interrupts
*
****************************************************************************/
irqstate_t up_irq_save(void)
{
uint32_t oldstat;
uint32_t newstat;
/* Clear machine interrupt enable bit */
asm volatile ("csrr %0, mstatus": "=r" (oldstat));
newstat = oldstat & ~MSTATUS_MIE;
asm volatile("csrw mstatus, %0" : /* no output */ : "r" (newstat));
return oldstat;
}
/****************************************************************************
* Name: up_irq_restore
*
* Description:
* Restore previous IRQ mask state
*
****************************************************************************/
void up_irq_restore(irqstate_t flags)
{
/* Machine mode - mstatus */
asm volatile("csrw mstatus, %0" : /* no output */ : "r" (flags));
}
/****************************************************************************
* Name: up_irq_enable
*
* Description:
* Return the current interrupt state and enable interrupts
*
****************************************************************************/
irqstate_t up_irq_enable(void)
{
uint32_t oldstat;
uint32_t newstat;
uint32_t mie;
#if 1
/* Enable MEIE (machine external interrupt enable)
* and MTIE (machine timer interrupt enable)
*/
/* TODO: should move to up_enable_irq() */
mie = 0x1 << 11 | 0x1 << 7;
asm volatile("csrw mie, %0" : /* no output */ : "r" (mie));
#endif
/* Set machine interrupt enable (MIE) in mstatus */
asm volatile ("csrr %0, mstatus": "=r" (oldstat));
newstat = oldstat | MSTATUS_MIE;
asm volatile("csrw mstatus, %0" : /* no output */ : "r" (newstat));
return oldstat;
}
arch/risc-v/src/fe310/fe310_irq_dispatch.c
+120
View File
@@ -0,0 +1,120 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_irq_dispatch.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <assert.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "up_internal.h"
#include "group/group.h"
/****************************************************************************
* Public Data
****************************************************************************/
volatile uint32_t * g_current_regs;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* fe310_dispatch_irq
****************************************************************************/
void *fe310_dispatch_irq(uint32_t vector, uint32_t *regs)
{
uint32_t irq = (vector >> 27) | (vector & 0xf);
uint32_t *mepc = regs;
if (FE310_IRQ_MEXT == irq)
{
/* Read & write FE310_PLIC_CLAIM to clear pending */
uint32_t val = getreg32(FE310_PLIC_CLAIM);
putreg32(val, FE310_PLIC_CLAIM);
irq += val;
}
/* NOTE: In case of ecall, we need to adjust mepc in the context */
if (FE310_IRQ_ECALLM == irq)
{
*mepc += 4;
}
#ifdef CONFIG_SUPPRESS_INTERRUPTS
PANIC();
#else
/* Current regs non-zero indicates that we are processing an interrupt;
* g_current_regs is also used to manage interrupt level context switches.
*
* Nested interrupts are not supported
*/
DEBUGASSERT(g_current_regs == NULL);
g_current_regs = regs;
/* Deliver the IRQ */
irq_dispatch(irq, regs);
#endif
/* If a context switch occurred while processing the interrupt then
* g_current_regs may have change value. If we return any value different
* from the input regs, then the lower level will know that a context
* switch occurred during interrupt processing.
*/
regs = (uint32_t *)g_current_regs;
g_current_regs = NULL;
/* Set machine previous privilege mode to machine mode */
*(regs + REG_INT_CTX_NDX) |= 0x3 << 11;
return regs;
}
arch/risc-v/src/fe310/fe310_lowputc.c
+131
View File
@@ -0,0 +1,131 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_lowputc.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <arch/board/board.h>
#include "up_internal.h"
#include "up_arch.h"
#include "fe310_config.h"
#include "hardware/fe310_memorymap.h"
#include "hardware/fe310_uart.h"
#include "fe310.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Select UART parameters for the selected console */
#ifdef HAVE_SERIAL_CONSOLE
# if defined(CONFIG_UART0_SERIAL_CONSOLE)
# define FE310_CONSOLE_BASE FE310_UART0_BASE
# define FE310_CONSOLE_BAUD CONFIG_UART0_BAUD
# define FE310_CONSOLE_BITS CONFIG_UART0_BITS
# define FE310_CONSOLE_PARITY CONFIG_UART0_PARITY
# define FE310_CONSOLE_2STOP CONFIG_UART0_2STOP
# define FE310_CONSOLE_TX GPIO_UART0_TX
# define FE310_CONSOLE_RX GPIO_UART0_RX
# define HAVE_UART
# elif defined(CONFIG_UART1_SERIAL_CONSOLE)
# define FE310_CONSOLE_BASE FE310_UART1_BASE
# define FE310_CONSOLE_BAUD CONFIG_UART1_BAUD
# define FE310_CONSOLE_BITS CONFIG_UART1_BITS
# define FE310_CONSOLE_PARITY CONFIG_UART1_PARITY
# define FE310_CONSOLE_2STOP CONFIG_UART1_2STOP
# define FE310_CONSOLE_TX GPIO_UART1_TX
# define FE310_CONSOLE_RX GPIO_UART1_RX
# define HAVE_UART
# endif
#endif /* HAVE_CONSOLE */
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_lowputc
*
* Description:
* Output one byte on the serial console
*
****************************************************************************/
void up_lowputc(char ch)
{
#ifdef HAVE_SERIAL_CONSOLE
/* Wait until the TX data register is empty */
while ((getreg32(FE310_CONSOLE_BASE + UART_TXDATA_OFFSET) & UART_TX_FULL))
;
/* Then send the character */
putreg32((uint32_t)ch, FE310_CONSOLE_BASE + UART_TXDATA_OFFSET);
#endif /* HAVE_CONSOLE */
}
/****************************************************************************
* Name: fe310_lowsetup
*
* Description:
* This performs basic initialization of the UART used for the serial
* console. Its purpose is to get the console output available as soon
* as possible.
*
****************************************************************************/
void fe310_lowsetup(void)
{
#if defined(HAVE_UART)
/* Enable and configure the selected console device */
#if defined(HAVE_SERIAL_CONSOLE) && !defined(CONFIG_SUPPRESS_UART_CONFIG)
/* TODO: Configure the UART Baud Rate */
#endif /* HAVE_SERIAL_CONSOLE && !CONFIG_SUPPRESS_UART_CONFIG */
#endif /* HAVE_UART */
}
arch/risc-v/src/fe310/fe310_lowputc.h
+75
View File
@@ -0,0 +1,75 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_lowputc.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_FE310_LOWPUTC_H
#define __ARCH_RISCV_SRC_FE310_FE310_LOWPUTC_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
/****************************************************************************
* Public Functions
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Name: fe310_lowsetup
****************************************************************************/
EXTERN void fe310_lowsetup(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_RISCV_SRC_FE310_FE310_LOWPUTC_H */
arch/risc-v/src/fe310/fe310_memorymap.h
+61
View File
@@ -0,0 +1,61 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_memorymap.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef _ARCH_RISCV_SRC_FE310_FE310_MEMORYMAP_H
#define _ARCH_RISCV_SRC_FE310_FE310_MEMORYMAP_H
/****************************************************************************
* Included Files
****************************************************************************/
#include "hardware/fe310_memorymap.h"
#include "hardware/fe310_uart.h"
#include "hardware/fe310_clic.h"
#include "hardware/fe310_plic.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Idle thread stack starts from _ebss */
#ifndef __ASSEMBLY__
#define FE310_IDLESTACK_BASE (uint32_t)&_ebss
#else
#define FE310_IDLESTACK_BASE _ebss
#endif
#define FE310_IDLESTACK_SIZE (CONFIG_IDLETHREAD_STACKSIZE & ~3)
#define FE310_IDLESTACK_TOP (FE310_IDLESTACK_BASE + FE310_IDLESTACK_SIZE)
#endif /* _ARCH_RISCV_SRC_FE310_FE310_MEMORYMAP_H */
arch/risc-v/src/fe310/fe310_serial.c
+723
View File
File diff suppressed because it is too large Load Diff
arch/risc-v/src/fe310/fe310_start.c
+129
View File
@@ -0,0 +1,129 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_init.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <arch/board/board.h>
#include "fe310.h"
#include "chip.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifdef CONFIG_DEBUG_FEATURES
# define showprogress(c) up_lowputc(c)
#else
# define showprogress(c)
#endif
/****************************************************************************
* Public Data
****************************************************************************/
/* g_idle_topstack: _sbss is the start of the BSS region as defined by the
* linker script. _ebss lies at the end of the BSS region. The idle task
* stack starts at the end of BSS and is of size CONFIG_IDLETHREAD_STACKSIZE.
* The IDLE thread is the thread that the system boots on and, eventually,
* becomes the IDLE, do nothing task that runs only when there is nothing
* else to run. The heap continues from there until the end of memory.
* g_idle_topstack is a read-only variable the provides this computed
* address.
*/
uint32_t g_idle_topstack = FE310_IDLESTACK_TOP;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: fe310_start
****************************************************************************/
void __fe310_start(void)
{
const uint32_t *src;
uint32_t *dest;
/* Clear .bss. We'll do this inline (vs. calling memset) just to be
* certain that there are no issues with the state of global variables.
*/
for (dest = &_sbss; dest < &_ebss; )
{
*dest++ = 0;
}
/* Move the initialized data section from his temporary holding spot in
* FLASH into the correct place in SRAM. The correct place in SRAM is
* give by _sdata and _edata. The temporary location is in FLASH at the
* end of all of the other read-only data (.text, .rodata) at _eronly.
*/
for (src = &_eronly, dest = &_sdata; dest < &_edata; )
{
*dest++ = *src++;
}
showprogress('A');
/* Configure the UART so we can get debug output */
fe310_lowsetup();
showprogress('B');
#ifdef USE_EARLYSERIALINIT
up_earlyserialinit();
#endif
/* Do board initialization */
fe310_boardinitialize();
showprogress('C');
/* Call nx_start() */
nx_start();
/* Shouldn't get here */
for (; ; );
}
arch/risc-v/src/fe310/fe310_timerisr.c
+140
View File
@@ -0,0 +1,140 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_timerisr.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <time.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "fe310.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define getreg64(a) (*(volatile uint64_t *)(a))
#define putreg64(v,a) (*(volatile uint64_t *)(a) = (v))
/****************************************************************************
* Private Data
****************************************************************************/
static bool _b_tick_started = false;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: fe310_reload_mtimecmp
****************************************************************************/
static void fe310_reload_mtimecmp(void)
{
irqstate_t flags = spin_lock_irqsave();
uint64_t current;
uint64_t next;
if (!_b_tick_started)
{
_b_tick_started = true;
current = getreg64(FE310_CLIC_MTIME);
}
else
{
current = getreg64(FE310_CLIC_MTIMECMP);
}
uint64_t tick = 100000; /* TODO */
next = current + tick;
putreg64(next, FE310_CLIC_MTIMECMP);
spin_unlock_irqrestore(flags);
}
/****************************************************************************
* Name: fe310_timerisr
****************************************************************************/
static int fe310_timerisr(int irq, void *context, FAR void *arg)
{
fe310_reload_mtimecmp();
/* Process timer interrupt */
nxsched_process_timer();
return 0;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: riscv_timer_initialize
*
* Description:
* This function is called during start-up to initialize
* the timer interrupt.
*
****************************************************************************/
void riscv_timer_initialize(void)
{
/* Attach timer interrupt handler */
(void)irq_attach(FE310_IRQ_MTIMER, fe310_timerisr, NULL);
/* Reload CLIC mtimecmp */
fe310_reload_mtimecmp();
/* And enable the timer interrupt */
up_enable_irq(FE310_IRQ_MTIMER);
}
arch/risc-v/src/fe310/fe310_vectors.S
+55
View File
@@ -0,0 +1,55 @@
/****************************************************************************
* arch/risc-v/src/fe310/fe310_vectors.S
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
.section .text.vec
.global __reset_vec
.global __trap_vec
/****************************************************************************
* Name: __reset_vec
****************************************************************************/
__reset_vec:
jal __start
/****************************************************************************
* Name: exception_common
****************************************************************************/
__trap_vec:
j exception_common
nop
arch/risc-v/src/fe310/hardware/fe310_clic.h
+43
View File
@@ -0,0 +1,43 @@
/****************************************************************************
* arch/risc-v/src/fe310/hardware/fe310_clic.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_CLIC_H
#define __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_CLIC_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define FE310_CLIC_MTIMECMP (FE310_CLIC_BASE + 0x4000)
#define FE310_CLIC_MTIME (FE310_CLIC_BASE + 0xbff8)
#endif /* __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_CLIC_H */
arch/risc-v/src/fe310/hardware/fe310_memorymap.h
+50
View File
@@ -0,0 +1,50 @@
/****************************************************************************
* arch/risc-v/src/fe310/hardware/fe310_memorymap.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_MEMORYMAP_H
#define __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_MEMORYMAP_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Register Base Address ****************************************************/
#define FE310_CLIC_BASE 0x02000000
#define FE310_PLIC_BASE 0x0c000000
#define FE310_GPIO_BASE 0x10012000 /* 0x10012000 - 0x10012fff: GPIO */
#define FE310_UART0_BASE 0x10013000 /* 0x10013000 - 0x10013fff: UART0 */
#define FE310_UART1_BASE 0x10023000 /* 0x10023000 - 0x10023fff: UART1 */
#endif /* __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_MEMORYMAP_H */
arch/risc-v/src/fe310/hardware/fe310_plic.h
+46
View File
@@ -0,0 +1,46 @@
/****************************************************************************
* arch/risc-v/src/fe310/hardware/fe310_plic.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_PLIC_H
#define __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_PLIC_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define FE310_PLIC_PRIORITY (FE310_PLIC_BASE + 0x000000)
#define FE310_PLIC_PENDING1 (FE310_PLIC_BASE + 0x001000)
#define FE310_PLIC_ENABLE1 (FE310_PLIC_BASE + 0x002000)
#define FE310_PLIC_THRESHOLD (FE310_PLIC_BASE + 0x200000)
#define FE310_PLIC_CLAIM (FE310_PLIC_BASE + 0x200004)
#endif /* __ARCH_RISCV_SRC_FE310_HARDWARE_FE310_PLIC_H */
arch/risc-v/src/fe310/hardware/fe310_uart.h
+72
View File
@@ -0,0 +1,72 @@
/****************************************************************************
* arch/risc-v/src/fe310/hardware/fe310_uart.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef ARCH_RISCV_SRC_FE310_CHIP_FE310_UART_H
#define ARCH_RISCV_SRC_FE310_CHIP_FE310_UART_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define UART_TXDATA_OFFSET 0x00
#define UART_RXDATA_OFFSET 0x04
#define UART_TXCTL_OFFSET 0x08
#define UART_RXCTL_OFFSET 0x0c
#define UART_IE_OFFSET 0x10
#define UART_IP_OFFSET 0x14
#define UART_DIV_OFFSET 0x18
#ifdef CONFIG_FE310_UART0
# define FE310_UART0_TXDATA (FE310_UART0_BASE + UART_TXDATA_OFFSET)
# define FE310_UART0_RXDATA (FE310_UART0_BASE + UART_RXDATA_OFFSET)
# define FE310_UART0_TXCTRL (FE310_UART0_BASE + UART_TXCTRL_OFFSET)
# define FE310_UART0_RXCTRL (FE310_UART0_BASE + UART_RXCTRL_OFFSET)
# define FE310_UART0_IE (FE310_UART0_BASE + UART_IE_OFFSET)
# define FE310_UART0_IP (FE310_UART0_BASE + UART_IP_OFFSET)
# define FE310_UART0_DIV (FE310_UART0_BASE + UART_DIV_OFFSET)
#endif
#define UART_TX_FULL (1 << 31) /* TX FIFO full (in TXDATA) */
#define UART_RX_EMPTY (1 << 31) /* RX FIFO empty (in RXDATA) */
#define UART_TX_EN (1 << 0) /* Enable TX (in TXCTL) */
#define UART_NSTOP (1 << 1) /* Number of stop bits (in TXCTL) */
#define UART_RX_EN (1 << 0) /* Enable RX (in RXCTL) */
#define UART_IE_TXWM (1 << 0) /* Enable TX wartermark int (in IE) */
#define UART_IE_RXWM (1 << 1) /* Enable RX wartermark int (in IE) */
#define UART_IP_TXWM (1 << 0) /* TX wartermark pending (in IP) */
#define UART_IP_RXWM (1 << 1) /* RX wartermark pending (in IP) */
#endif /* _ARCH_RISCV_SRC_FE310_CHIP_FE310_UART_H */
arch/risc-v/src/fe310/up_schedulesigaction.c
+208
View File
@@ -0,0 +1,208 @@
/****************************************************************************
* arch/risc-v/src/fe310/up_schedulesigaction.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Based on arch/risc-v/src/nr5m100/up_schedulesigaction.c
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <sched.h>
#include <debug.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include <arch/fe310/irq.h>
#include "sched/sched.h"
#include "up_internal.h"
#include "up_arch.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_schedule_sigaction
*
* Description:
* This function is called by the OS when one or more
* signal handling actions have been queued for execution.
* The architecture specific code must configure things so
* that the 'igdeliver' callback is executed on the thread
* specified by 'tcb' as soon as possible.
*
* This function may be called from interrupt handling logic.
*
* This operation should not cause the task to be unblocked
* nor should it cause any immediate execution of sigdeliver.
* Typically, a few cases need to be considered:
*
* (1) This function may be called from an interrupt handler
* During interrupt processing, all xcptcontext structures
* should be valid for all tasks. That structure should
* be modified to invoke sigdeliver() either on return
* from (this) interrupt or on some subsequent context
* switch to the recipient task.
* (2) If not in an interrupt handler and the tcb is NOT
* the currently executing task, then again just modify
* the saved xcptcontext structure for the recipient
* task so it will invoke sigdeliver when that task is
* later resumed.
* (3) If not in an interrupt handler and the tcb IS the
* currently executing task -- just call the signal
* handler now.
*
****************************************************************************/
void up_schedule_sigaction(struct tcb_s *tcb, sig_deliver_t sigdeliver)
{
irqstate_t flags;
uint32_t int_ctx;
sinfo("tcb=0x%p sigdeliver=0x%p\n", tcb, sigdeliver);
/* Make sure that interrupts are disabled */
flags = enter_critical_section();
/* Refuse to handle nested signal actions */
if (!tcb->xcp.sigdeliver)
{
/* First, handle some special cases when the signal is
* being delivered to the currently executing task.
*/
sinfo("rtcb=0x%p g_current_regs=0x%p\n",
this_task(), g_current_regs);
if (tcb == this_task())
{
/* CASE 1: We are not in an interrupt handler and
* a task is signalling itself for some reason.
*/
if (!g_current_regs)
{
/* In this case just deliver the signal now. */
sigdeliver(tcb);
}
/* CASE 2: We are in an interrupt handler AND the
* interrupted task is the same as the one that
* must receive the signal, then we will have to modify
* the return state as well as the state in the TCB.
*
* Hmmm... there looks like a latent bug here: The following
* logic would fail in the strange case where we are in an
* interrupt handler, the thread is signalling itself, but
* a context switch to another task has occurred so that
* g_current_regs does not refer to the thread of this_task()!
*/
else
{
/* Save the return EPC and STATUS registers. These will be
* restored by the signal trampoline after the signals have
* been delivered.
*/
tcb->xcp.sigdeliver = sigdeliver;
tcb->xcp.saved_epc = g_current_regs[REG_EPC];
/* Then set up to vector to the trampoline with interrupts
* disabled
*/
g_current_regs[REG_EPC] = (uint32_t)up_sigdeliver;
int_ctx = g_current_regs[REG_INT_CTX];
int_ctx &= ~MSTATUS_MIE;
g_current_regs[REG_INT_CTX] = int_ctx;
/* And make sure that the saved context in the TCB
* is the same as the interrupt return context.
*/
up_savestate(tcb->xcp.regs);
sinfo("PC/STATUS Saved: %08x/%08x New: %08x/%08x\n",
tcb->xcp.saved_epc, tcb->xcp.saved_status,
g_current_regs[REG_EPC], g_current_regs[REG_INT_CTX]);
}
}
/* Otherwise, we are (1) signaling a task is not running
* from an interrupt handler or (2) we are not in an
* interrupt handler and the running task is signalling
* some non-running task.
*/
else
{
/* Save the return EPC and STATUS registers. These will be
* restored by the signal trampoline after the signals have
* been delivered.
*/
tcb->xcp.sigdeliver = sigdeliver;
tcb->xcp.saved_epc = tcb->xcp.regs[REG_EPC];
tcb->xcp.saved_int_ctx = tcb->xcp.regs[REG_INT_CTX];
/* Then set up to vector to the trampoline with interrupts
* disabled
*/
tcb->xcp.regs[REG_EPC] = (uint32_t)up_sigdeliver;
int_ctx = tcb->xcp.regs[REG_INT_CTX];
int_ctx &= ~MSTATUS_MIE;
tcb->xcp.regs[REG_INT_CTX] = int_ctx;
sinfo("PC/STATUS Saved: %08x/%08x New: %08x/%08x\n",
tcb->xcp.saved_epc, tcb->xcp.saved_status,
tcb->xcp.regs[REG_EPC], tcb->xcp.regs[REG_INT_CTX]);
}
}
leave_critical_section(flags);
}
arch/risc-v/src/rv32im/up_assert.c
+216
View File
@@ -74,6 +74,218 @@
* Private Functions
****************************************************************************/
#ifdef CONFIG_ARCH_STACKDUMP
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: up_getsp
****************************************************************************/
static inline uint32_t up_getsp(void)
{
register uint32_t sp;
__asm__
(
"\tadd %0, x0, x2\n"
: "=r"(sp)
);
return sp;
}
/****************************************************************************
* Name: up_stackdump
****************************************************************************/
static void up_stackdump(uint32_t sp, uint32_t stack_base)
{
uint32_t stack ;
for (stack = sp & ~0x1f; stack < stack_base; stack += 32)
{
uint32_t *ptr = (uint32_t *)stack;
_alert("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
stack, ptr[0], ptr[1], ptr[2], ptr[3],
ptr[4], ptr[5], ptr[6], ptr[7]);
}
}
/****************************************************************************
* Name: up_taskdump
****************************************************************************/
#ifdef CONFIG_STACK_COLORATION
static void up_taskdump(FAR struct tcb_s *tcb, FAR void *arg)
{
/* Dump interesting properties of this task */
#if CONFIG_TASK_NAME_SIZE > 0
_alert("%s: PID=%d Stack Used=%lu of %lu\n",
tcb->name, tcb->pid, (unsigned long)up_check_tcbstack(tcb),
(unsigned long)tcb->adj_stack_size);
#else
_alert("PID: %d Stack Used=%lu of %lu\n",
tcb->pid, (unsigned long)up_check_tcbstack(tcb),
(unsigned long)tcb->adj_stack_size);
#endif
}
#endif
/****************************************************************************
* Name: up_showtasks
****************************************************************************/
#ifdef CONFIG_STACK_COLORATION
static inline void up_showtasks(void)
{
/* Dump interesting properties of each task in the crash environment */
sched_foreach(up_taskdump, NULL);
}
#else
# define up_showtasks()
#endif
/****************************************************************************
* Name: up_registerdump
****************************************************************************/
static inline void up_registerdump(void)
{
/* Are user registers available from interrupt processing? */
if (g_current_regs)
{
_alert("EPC:%08x \n",
g_current_regs[REG_EPC]);
_alert("A0:%08x A1:%08x A2:%08x A3:%08x A4:%08x A5:%08x A6:%08x A7:%08x\n",
g_current_regs[REG_A0], g_current_regs[REG_A1], g_current_regs[REG_A2],
g_current_regs[REG_A3], g_current_regs[REG_A4], g_current_regs[REG_A5],
g_current_regs[REG_A6], g_current_regs[REG_A7]);
_alert("T0:%08x T1:%08x T2:%08x T3:%08x T4:%08x T5:%08x T6:%08x\n",
g_current_regs[REG_T0], g_current_regs[REG_T1], g_current_regs[REG_T2],
g_current_regs[REG_T3], g_current_regs[REG_T4], g_current_regs[REG_T5],
g_current_regs[REG_T6]);
_alert("S0:%08x S1:%08x S2:%08x S3:%08x S4:%08x S5:%08x S6:%08x S7:%08x\n",
g_current_regs[REG_S0], g_current_regs[REG_S1], g_current_regs[REG_S2],
g_current_regs[REG_S3], g_current_regs[REG_S4], g_current_regs[REG_S5],
g_current_regs[REG_S6], g_current_regs[REG_S7]);
_alert("S8:%08x S9:%08x S10:%08x S11:%08x\n",
g_current_regs[REG_S8], g_current_regs[REG_S9], g_current_regs[REG_S10],
g_current_regs[REG_S11]);
#ifdef RISCV_SAVE_GP
_alert("GP:%08x SP:%08x FP:%08x TP:%08x RA:%08x\n",
g_current_regs[REG_GP], g_current_regs[REG_SP], g_current_regs[REG_FP],
g_current_regs[REG_TP], g_current_regs[REG_RA]);
#else
_alert("SP:%08x FP:%08x TP:%08x RA:%08x\n",
g_current_regs[REG_SP], g_current_regs[REG_FP], g_current_regs[REG_TP],
g_current_regs[REG_RA]);
#endif
}
}
/****************************************************************************
* Name: up_dumpstate
****************************************************************************/
static void up_dumpstate(void)
{
struct tcb_s *rtcb = running_task();
uint32_t sp = up_getsp();
uint32_t ustackbase;
uint32_t ustacksize;
#if CONFIG_ARCH_INTERRUPTSTACK > 3
uint32_t istackbase;
uint32_t istacksize;
#endif
/* Dump the registers (if available) */
up_registerdump();
/* Get the limits on the user stack memory */
if (rtcb->pid == 0) /* Check for CPU0 IDLE thread */
{
ustackbase = g_idle_topstack - 4;
ustacksize = CONFIG_IDLETHREAD_STACKSIZE;
}
else
{
ustackbase = (uint32_t)rtcb->adj_stack_ptr;
ustacksize = (uint32_t)rtcb->adj_stack_size;
}
/* Get the limits on the interrupt stack memory */
#if CONFIG_ARCH_INTERRUPTSTACK > 3
istackbase = (uint32_t)&g_intstackbase;
istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4;
/* Show interrupt stack info */
_alert("sp: %08x\n", sp);
_alert("IRQ stack:\n");
_alert(" base: %08x\n", istackbase);
_alert(" size: %08x\n", istacksize);
/* Does the current stack pointer lie within the interrupt
* stack?
*/
if (sp <= istackbase && sp > istackbase - istacksize)
{
/* Yes.. dump the interrupt stack */
up_stackdump(sp, istackbase);
/* Extract the user stack pointer which should lie
* at the base of the interrupt stack.
*/
sp = (uint32_t)&g_intstackbase;
_alert("sp: %08x\n", sp);
}
else if (g_current_regs)
{
_alert("ERROR: Stack pointer is not within the interrupt stack\n");
up_stackdump(istackbase - istacksize, istackbase);
}
/* Show user stack info */
_alert("User stack:\n");
_alert(" base: %08x\n", ustackbase);
_alert(" size: %08x\n", ustacksize);
#else
_alert("sp: %08x\n", sp);
_alert("stack base: %08x\n", ustackbase);
_alert("stack size: %08x\n", ustacksize);
#endif
/* Dump the user stack if the stack pointer lies within the allocated user
* stack memory.
*/
if (sp > ustackbase || sp <= ustackbase - ustacksize)
{
_alert("ERROR: Stack pointer is not within allocated stack\n");
up_stackdump(ustackbase - ustacksize, ustackbase);
}
else
{
up_stackdump(sp, ustackbase);
}
}
#endif /* CONFIG_ARCH_STACKDUMP */
/****************************************************************************
* Name: _up_assert
****************************************************************************/
@@ -167,6 +379,10 @@ void up_assert(const uint8_t *filename, int lineno)
up_dumpstate();
/* Dump the state of all tasks (if available) */
up_showtasks();
#ifdef CONFIG_ARCH_USBDUMP
/* Dump USB trace data */
arch/risc-v/src/rv32im/up_dumpstate.c
-176
View File
@@ -57,179 +57,3 @@
#include "sched/sched.h"
#include "up_internal.h"
#ifdef CONFIG_ARCH_STACKDUMP
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: up_getsp
****************************************************************************/
static inline uint32_t up_getsp(void)
{
register uint32_t sp;
__asm__
(
"\tadd %0, x0, x2\n"
: "=r"(sp)
);
return sp;
}
/****************************************************************************
* Name: up_stackdump
****************************************************************************/
static void up_stackdump(uint32_t sp, uint32_t stack_base)
{
uint32_t stack ;
for (stack = sp & ~0x1f; stack < stack_base; stack += 32)
{
uint32_t *ptr = (uint32_t *)stack;
_alert("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
stack, ptr[0], ptr[1], ptr[2], ptr[3],
ptr[4], ptr[5], ptr[6], ptr[7]);
}
}
/****************************************************************************
* Name: up_registerdump
****************************************************************************/
static inline void up_registerdump(void)
{
/* Are user registers available from interrupt processing? */
if (g_current_regs)
{
_alert("EPC:%08x \n",
g_current_regs[REG_EPC]);
_alert("A0:%08x A1:%08x A2:%08x A3:%08x A4:%08x A5:%08x A6:%08x A7:%08x\n",
g_current_regs[REG_A0], g_current_regs[REG_A1], g_current_regs[REG_A2],
g_current_regs[REG_A3], g_current_regs[REG_A4], g_current_regs[REG_A5],
g_current_regs[REG_A6], g_current_regs[REG_A7]);
_alert("T0:%08x T1:%08x T2:%08x T3:%08x T4:%08x T5:%08x T6:%08x\n",
g_current_regs[REG_T0], g_current_regs[REG_T1], g_current_regs[REG_T2],
g_current_regs[REG_T3], g_current_regs[REG_T4], g_current_regs[REG_T5],
g_current_regs[REG_T6]);
_alert("S0:%08x S1:%08x S2:%08x S3:%08x S4:%08x S5:%08x S6:%08x S7:%08x\n",
g_current_regs[REG_S0], g_current_regs[REG_S1], g_current_regs[REG_S2],
g_current_regs[REG_S3], g_current_regs[REG_S4], g_current_regs[REG_S5],
g_current_regs[REG_S6], g_current_regs[REG_S7]);
_alert("S8:%08x S9:%08x S10:%08x S11:%08x\n",
g_current_regs[REG_S8], g_current_regs[REG_S9], g_current_regs[REG_S10],
g_current_regs[REG_S11]);
#ifdef RISCV_SAVE_GP
_alert("GP:%08x SP:%08x FP:%08x TP:%08x RA:%08x\n",
g_current_regs[REG_GP], g_current_regs[REG_SP], g_current_regs[REG_FP],
g_current_regs[REG_TP], g_current_regs[REG_RA]);
#else
_alert("SP:%08x FP:%08x TP:%08x RA:%08x\n",
g_current_regs[REG_SP], g_current_regs[REG_FP], g_current_regs[REG_TP],
g_current_regs[REG_RA]);
#endif
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_dumpstate
****************************************************************************/
void up_dumpstate(void)
{
struct tcb_s *rtcb = running_task();
uint32_t sp = up_getsp();
uint32_t ustackbase;
uint32_t ustacksize;
#if CONFIG_ARCH_INTERRUPTSTACK > 3
uint32_t istackbase;
uint32_t istacksize;
#endif
/* Dump the registers (if available) */
up_registerdump();
/* Get the limits on the user stack memory */
if (rtcb->pid == 0) /* Check for CPU0 IDLE thread */
{
ustackbase = g_idle_topstack - 4;
ustacksize = CONFIG_IDLETHREAD_STACKSIZE;
}
else
{
ustackbase = (uint32_t)rtcb->adj_stack_ptr;
ustacksize = (uint32_t)rtcb->adj_stack_size;
}
/* Get the limits on the interrupt stack memory */
#if CONFIG_ARCH_INTERRUPTSTACK > 3
istackbase = (uint32_t)&g_intstackbase;
istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4;
/* Show interrupt stack info */
_alert("sp: %08x\n", sp);
_alert("IRQ stack:\n");
_alert(" base: %08x\n", istackbase);
_alert(" size: %08x\n", istacksize);
/* Does the current stack pointer lie within the interrupt
* stack?
*/
if (sp <= istackbase && sp > istackbase - istacksize)
{
/* Yes.. dump the interrupt stack */
up_stackdump(sp, istackbase);
/* Extract the user stack pointer which should lie
* at the base of the interrupt stack.
*/
sp = g_intstackbase;
_alert("sp: %08x\n", sp);
}
else if (g_current_regs)
{
_alert("ERROR: Stack pointer is not within the interrupt stack\n");
up_stackdump(istackbase - istacksize, istackbase);
}
/* Show user stack info */
_alert("User stack:\n");
_alert(" base: %08x\n", ustackbase);
_alert(" size: %08x\n", ustacksize);
#else
_alert("sp: %08x\n", sp);
_alert("stack base: %08x\n", ustackbase);
_alert("stack size: %08x\n", ustacksize);
#endif
/* Dump the user stack if the stack pointer lies within the allocated user
* stack memory.
*/
if (sp > ustackbase || sp <= ustackbase - ustacksize)
{
_alert("ERROR: Stack pointer is not within allocated stack\n");
up_stackdump(ustackbase - ustacksize, ustackbase);
}
else
{
up_stackdump(sp, ustackbase);
}
}
#endif /* CONFIG_ARCH_STACKDUMP */
boards/Kconfig
+11
View File
@@ -297,6 +297,13 @@ config ARCH_BOARD_GAPUINO
---help---
Nuttx port for gapuino, a GAP8 evaluation board.
config ARCH_BOARD_HIFIVE1_REVB
bool "HiFive1 Rev B board"
depends on ARCH_CHIP_FE310
---help---
This is the board configuration for the port of NuttX to the SiFive HiFive1
Rev B board. This board features the RISC-V FE310-G002
config ARCH_BOARD_HYMINI_STM32V
bool "HY-Mini STM32v board"
depends on ARCH_CHIP_STM32F103VC
@@ -1998,6 +2005,7 @@ config ARCH_BOARD
default "freedom-kl25z" if ARCH_BOARD_FREEDOM_KL25Z
default "freedom-kl26z" if ARCH_BOARD_FREEDOM_KL26Z
default "gapuino" if ARCH_BOARD_GAPUINO
default "hifive1-revb" if ARCH_BOARD_HIFIVE1_REVB
default "hymini-stm32v" if ARCH_BOARD_HYMINI_STM32V
default "imxrt1020-evk" if ARCH_BOARD_IMXRT1020_EVK
default "imxrt1050-evk" if ARCH_BOARD_IMXRT1050_EVK
@@ -2710,6 +2718,9 @@ endif
if ARCH_BOARD_NR5M100_NEXYS4
source "boards/risc-v/nr5m100/nr5m100-nexys4/Kconfig"
endif
if ARCH_BOARD_HIFIVE_REVB
source "boards/risc-v/fe310/hifive1-revb/Kconfig"
endif
if ARCH_BOARD_SIM
source "boards/sim/sim/sim/Kconfig"
endif
boards/risc-v/fe310/drivers/Kconfig
+4
View File
@@ -0,0 +1,4 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
boards/risc-v/fe310/hifive1-revb/Kconfig
+8
View File
@@ -0,0 +1,8 @@
#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
if ARCH_BOARD_HIFIVE1_REVB
endif
boards/risc-v/fe310/hifive1-revb/configs/nsh/defconfig
+73
View File
@@ -0,0 +1,73 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_DISABLEBG is not set
# CONFIG_NSH_DISABLE_LOSMART is not set
# CONFIG_NSH_DISABLE_UNAME is not set
# CONFIG_STANDARD_SERIAL is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="hifive1-revb"
CONFIG_ARCH_BOARD_HIFIVE1_REVB=y
CONFIG_ARCH_CHIP="fe310"
CONFIG_ARCH_CHIP_FE310=y
CONFIG_ARCH_CHIP_FE310_G002=y
CONFIG_ARCH_INTERRUPTSTACK=1536
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BINFMT_DISABLE=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_ERROR=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEFAULT_SMALL=y
CONFIG_DEV_ZERO=y
CONFIG_DISABLE_MQUEUE=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_FS_PROCFS=y
CONFIG_FS_WRITABLE=y
CONFIG_IDLETHREAD_STACKSIZE=1536
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_MAX_TASKS=8
CONFIG_MAX_WDOGPARMS=2
CONFIG_MM_SMALL=y
CONFIG_NFILE_DESCRIPTORS=6
CONFIG_NFILE_STREAMS=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_DISABLE_CD=y
CONFIG_NSH_DISABLE_CP=y
CONFIG_NSH_DISABLE_IFUPDOWN=y
CONFIG_NSH_DISABLE_MKDIR=y
CONFIG_NSH_DISABLE_RM=y
CONFIG_NSH_DISABLE_RMDIR=y
CONFIG_NSH_DISABLE_UMOUNT=y
CONFIG_NSH_FILEIOSIZE=64
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_PREALLOC_WDOGS=4
CONFIG_PTHREAD_STACK_DEFAULT=1536
CONFIG_RAM_SIZE=16384
CONFIG_RAM_START=0x80000000
CONFIG_RAW_BINARY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_STACK_COLORATION=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_STDIO_DISABLE_BUFFERING=y
CONFIG_SYSTEM_NSH=y
CONFIG_TASK_NAME_SIZE=12
CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=1536
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_USER_ENTRYPOINT="nsh_main"
CONFIG_WDOG_INTRESERVE=0
boards/risc-v/fe310/hifive1-revb/include/board.h
+86
View File
@@ -0,0 +1,86 @@
/****************************************************************************
* boards/risc-v/fe310/hifive1-revb/include/board.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_FE310_HIFIVE_REVB_INCLUDE_BOARD_H
#define __BOARDS_RISCV_FE310_HIFIVE_REVB_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
#include "fe310.h"
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: fe310_boardinitialize
****************************************************************************/
void fe310_boardinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_RISC-V_FE310_HIFIVE-REVB_INCLUDE_BOARD_H */
boards/risc-v/fe310/hifive1-revb/scripts/Make.defs
+116
View File
@@ -0,0 +1,116 @@
############################################################################
# boards/risc-v/fe310/hifive1-revb/scripts/Make.defs
#
# Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
# Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/risc-v/src/rv32im/Toolchain.defs
LDSCRIPT = ld.script
ifeq ($(WINTOOL),y)
# Windows-native toolchains
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mkwindeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/boards/$(CONFIG_ARCH)/$(CONFIG_ARCH_CHIP)/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/boards/$(CONFIG_ARCH)/$(CONFIG_ARCH_CHIP)/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
STRIP = $(CROSSDEV)strip --strip-unneeded
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
ASARCHCPUFLAGS += -Wa,-g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCPUFLAGS = -march=rv32imac -mabi=ilp32
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS += $(CFLAGS) -D__ASSEMBLY__ $(ASARCHCPUFLAGS)
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs -melf32lriscv
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g -melf32lriscv
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =
boards/risc-v/fe310/hifive1-revb/scripts/ld.script
+118
View File
@@ -0,0 +1,118 @@
/****************************************************************************
* boards/risc-v/fe310/hifive1-revb/scripts/ld.script
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
MEMORY
{
flash (rx) : ORIGIN = 0x20400000, LENGTH = 4096K
sram (rwx) : ORIGIN = 0x80000000, LENGTH = 16K
}
OUTPUT_ARCH("riscv")
ENTRY(_stext)
EXTERN(_vectors)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
.init_section : ALIGN(4) {
_sinit = ABSOLUTE(.);
KEEP(*(.init_array .init_array.*))
_einit = ABSOLUTE(.);
} > flash
.ARM.extab : ALIGN(4) {
*(.ARM.extab*)
} > flash
.ARM.exidx : ALIGN(4) {
__exidx_start = ABSOLUTE(.);
*(.ARM.exidx*)
__exidx_end = ABSOLUTE(.);
} > flash
_eronly = ABSOLUTE(.);
.data : ALIGN(4) {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.sdata .sdata.*)
*(.gnu.linkonce.d.*)
*(.gnu.linkonce.s.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > sram AT > flash
.bss : ALIGN(4) {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.sbss .sbss.*)
*(.gnu.linkonce.b.*)
*(.gnu.linkonce.sb.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}
boards/risc-v/fe310/hifive1-revb/src/Makefile
+44
View File
@@ -0,0 +1,44 @@
############################################################################
# boards/risc-v/fe310/hifive1-revb/src/Makefile
#
# Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
# Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
-include $(TOPDIR)/Make.defs
CSRCS = fe310_bringup.c fe310_boot.c
ifeq ($(CONFIG_LIB_BOARDCTL),y)
CSRCS += fe310_appinit.c
endif
include $(TOPDIR)/boards/Board.mk
boards/risc-v/fe310/hifive1-revb/src/fe310_appinit.c
+90
View File
@@ -0,0 +1,90 @@
/****************************************************************************
* boards/risc-v/fe310/hifive1-revb/src/fe310_appinit.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <errno.h>
#include <nuttx/board.h>
#include "fe310.h"
#include "hifive1-revb.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform architecture specific initialization
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value cold be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
#ifdef CONFIG_BOARD_LATE_INITIALIZE
/* Board initialization already performed by board_late_initialize() */
return OK;
#else
/* Perform board-specific initialization */
return fe310_bringup();
#endif
}
boards/risc-v/fe310/hifive1-revb/src/fe310_boot.c
+71
View File
@@ -0,0 +1,71 @@
/****************************************************************************
* boards/risc-v/fe310/hifive1-revb/src/fe310_boot.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <arch/board/board.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: fe310_boardinitialize
*
* Description:
* All FE310 architectures must provide the following entry point.
* This entry point is called early in the intitialization -- after all
* memory has been configured and mapped but before any devices have been
* initialized.
*
****************************************************************************/
void fe310_boardinitialize(void)
{
}
boards/risc-v/fe310/hifive1-revb/src/fe310_bringup.c
+75
View File
@@ -0,0 +1,75 @@
/****************************************************************************
* boards/risc-v/fe310/hifive1-revb/src/fe310_bringup.c
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/mount.h>
#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <errno.h>
#include <nuttx/board.h>
#include "fe310.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Name: fe310_bringup
****************************************************************************/
int fe310_bringup(void)
{
int ret = OK;
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0)
{
serr("ERROR: Failed to mount procfs at %s: %d\n", "/proc", ret);
}
#endif
return ret;
}
boards/risc-v/fe310/hifive1-revb/src/hifive1-revb.h
+47
View File
@@ -0,0 +1,47 @@
/****************************************************************************
* boards/risc-v/fe310/hifive1-revb/src/hifive1-revb.h
*
* Copyright (C) 2019 Masayuki Ishikawa. All rights reserved.
* Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_FE310_HIFIVE1_REVB_SRC_HIFIVE1_REVB_H
#define __BOARDS_RISCV_FE310_HIFIVE1_REVB_SRC_HIFIVE1_REVB_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
int fe310_bringup(void);
#endif /* __BOARDS_RISCV_FE310_HIFIVE1_REVB_SRC_HIFIVE1_REVB_H */

Some files were not shown because too many files have changed in this diff Show More