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add bsp/raspi4 gicv2

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bigmagic
2020-04-16 18:48:27 +08:00
parent a120c914bb
commit 709e0d5799
6 changed files with 340 additions and 374 deletions
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7
bsp/raspberry-pi/raspi4/driver/board.c
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@@ -75,10 +75,6 @@ void rt_hw_board_init(void)
rt_hw_interrupt_init(); // in libcpu/interrupt.c. Set some data structures, no operation on device
rt_hw_vector_init(); // in libcpu/interrupt.c. == rt_cpu_vector_set_base((rt_ubase_t)&system_vectors);
/* initialize timer for os tick */
rt_hw_timer_init();
rt_thread_idle_sethook(idle_wfi);
/* initialize uart */
rt_hw_uart_init(); // driver/drv_uart.c
#ifdef RT_USING_CONSOLE
@@ -91,6 +87,9 @@ void rt_hw_board_init(void)
rt_kprintf("heap: 0x%08x - 0x%08x\n", RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
rt_system_heap_init(RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
#endif
/* initialize timer for os tick */
rt_hw_timer_init();
rt_thread_idle_sethook(idle_wfi);
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();

1
bsp/raspberry-pi/raspi4/driver/iomap.h
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@@ -1,6 +1,7 @@
#ifndef __RASPI4_H__
#define __RASPI4_H__
#define ARM_GIC_NR_IRQS 512
#define INTC_BASE 0xff800000
#define GIC_V2_DISTRIBUTOR_BASE (INTC_BASE + 0x00041000)
#define GIC_V2_CPU_INTERFACE_BASE (INTC_BASE + 0x00042000)

2
bsp/raspberry-pi/raspi4/rtconfig.py
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@@ -32,7 +32,7 @@ if PLATFORM == 'gcc':
OBJDUMP = PREFIX + 'objdump'
OBJCPY = PREFIX + 'objcopy'
DEVICE = ' -march=armv8-a -mtune=cortex-a57'
DEVICE = ' -march=armv8-a -mtune=cortex-a72'
CFLAGS = DEVICE + ' -Wall'
AFLAGS = ' -c' + ' -x assembler-with-cpp -D__ASSEMBLY__'
LFLAGS = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'

578
libcpu/aarch64/common/gic/gic_pl400.c
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File diff suppressed because it is too large Load Diff

76
libcpu/aarch64/common/gic/gic_pl400.h
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@@ -1,35 +1,61 @@
/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2013-07-20 Bernard first version
*/
#ifndef __ARCH_MACHINE_GIC_PL400_H
#define __ARCH_MACHINE_GIC_PL400_H
#ifndef __GIC_PL400_H__
#define __GIC_PL400_H__
#include <stdint.h>
#include <rthw.h>
#include <board.h>
typedef uint16_t interrupt_t;
typedef uint16_t irq_t;
typedef uint64_t bool_t;
#define __REG32(x) (*((volatile unsigned int*)((rt_uint64_t)x)))
/** MODIFIES: [*] */
interrupt_t getActiveIRQ(void);
/** MODIFIES: [*] */
interrupt_t getPendingIRQ(void);
/** MODIFIES: [*] */
bool_t isIRQPending(void);
/** MODIFIES: [*] */
void maskInterrupt(bool_t disable, interrupt_t irq);
/** MODIFIES: [*] */
void ackInterrupt(irq_t irq);
/** MODIFIES: [*] */
static inline void setInterruptMode(irq_t irq, bool_t levelTrigger, bool_t polarityLow) { }
#define GIC_CPU_CTRL(hw_base) __REG32((hw_base) + 0x00)
#define GIC_CPU_PRIMASK(hw_base) __REG32((hw_base) + 0x04)
#define GIC_CPU_BINPOINT(hw_base) __REG32((hw_base) + 0x08)
#define GIC_CPU_INTACK(hw_base) __REG32((hw_base) + 0x0c)
#define GIC_CPU_EOI(hw_base) __REG32((hw_base) + 0x10)
#define GIC_CPU_RUNNINGPRI(hw_base) __REG32((hw_base) + 0x14)
#define GIC_CPU_HIGHPRI(hw_base) __REG32((hw_base) + 0x18)
/** MODIFIES: [*] */
void initIRQController(void);
#define GIC_DIST_CTRL(hw_base) __REG32((hw_base) + 0x000)
#define GIC_DIST_TYPE(hw_base) __REG32((hw_base) + 0x004)
#define GIC_DIST_IGROUP(hw_base, n) __REG32((hw_base) + 0x080 + ((n)/32) * 4)
#define GIC_DIST_ENABLE_SET(hw_base, n) __REG32((hw_base) + 0x100 + ((n)/32) * 4)
#define GIC_DIST_ENABLE_CLEAR(hw_base, n) __REG32((hw_base) + 0x180 + ((n)/32) * 4)
#define GIC_DIST_PENDING_SET(hw_base, n) __REG32((hw_base) + 0x200 + ((n)/32) * 4)
#define GIC_DIST_PENDING_CLEAR(hw_base, n) __REG32((hw_base) + 0x280 + ((n)/32) * 4)
#define GIC_DIST_ACTIVE_SET(hw_base, n) __REG32((hw_base) + 0x300 + ((n)/32) * 4)
#define GIC_DIST_ACTIVE_CLEAR(hw_base, n) __REG32((hw_base) + 0x380 + ((n)/32) * 4)
#define GIC_DIST_PRI(hw_base, n) __REG32((hw_base) + 0x400 + ((n)/4) * 4)
#define GIC_DIST_TARGET(hw_base, n) __REG32((hw_base) + 0x800 + ((n)/4) * 4)
#define GIC_DIST_CONFIG(hw_base, n) __REG32((hw_base) + 0xc00 + ((n)/16) * 4)
#define GIC_DIST_SOFTINT(hw_base) __REG32((hw_base) + 0xf00)
#define GIC_DIST_CPENDSGI(hw_base, n) __REG32((hw_base) + 0xf10 + ((n)/4) * 4)
#define GIC_DIST_ICPIDR2(hw_base) __REG32((hw_base) + 0xfe8)
void handleSpuriousIRQ(void);
int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start);
int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base);
void rt_hw_interrupt_umask(int vector);
void arm_gic_mask(rt_uint32_t index, int irq);
void arm_gic_umask(rt_uint32_t index, int irq);
void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask);
void arm_gic_set_group(rt_uint32_t index, int vector, int group);
int rt_hw_interrupt_get_irq(void);
int arm_gic_get_active_irq(rt_uint32_t index);
void arm_gic_ack(rt_uint32_t index, int irq);
void rt_hw_interrupt_ack(int fiq_irq);
#endif /* !__ARCH_MACHINE_GIC400_H */
void arm_gic_clear_active(rt_uint32_t index, int irq);
void arm_gic_clear_pending(rt_uint32_t index, int irq);
void arm_gic_dump_type(rt_uint32_t index);
void arm_gic_dump(rt_uint32_t index);
#endif

50
libcpu/aarch64/cortex-a72/interrupt.c
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@@ -13,8 +13,10 @@
#include <gic_pl400.h>
#include <board.h>
#include <armv8.h>
#include "iomap.h"
#define MAX_HANDLERS 256
#define GIC_ACK_INTID_MASK 0x000003ff
#ifdef RT_USING_SMP
#define rt_interrupt_nest rt_cpu_self()->irq_nest
@@ -41,7 +43,15 @@ void rt_hw_vector_init(void)
*/
void rt_hw_interrupt_init(void)
{
initIRQController();
rt_uint32_t gic_cpu_base = 0;
rt_uint32_t gic_dist_base = 0;
/* initialize ARM GIC */
gic_dist_base = GIC_PL400_DISTRIBUTOR_PPTR;
gic_cpu_base = GIC_PL400_CONTROLLER_PPTR;
arm_gic_dist_init(0, gic_dist_base, 0);
arm_gic_cpu_init(0, gic_cpu_base);
}
/**
@@ -70,4 +80,40 @@ rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
}
return old_handler;
}
}
/**
* This function will mask a interrupt.
* @param vector the interrupt number
*/
void rt_hw_interrupt_mask(int vector)
{
arm_gic_mask(0, vector);
}
/**
* This function will un-mask a interrupt.
* @param vector the interrupt number
*/
void rt_hw_interrupt_umask(int vector)
{
arm_gic_umask(0, vector);
}
/**
* This function returns the active interrupt number.
* @param none
*/
int rt_hw_interrupt_get_irq(void)
{
return arm_gic_get_active_irq(0) & GIC_ACK_INTID_MASK;
}
/**
* This function acknowledges the interrupt.
* @param vector the interrupt number
*/
void rt_hw_interrupt_ack(int vector)
{
arm_gic_ack(0, vector);
}