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Add Kinetis startup logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3874 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
@@ -75,6 +75,8 @@
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/* External interrupts (vectors >= 16) */
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#define KINETIS_IRQ_EXTINT (16)
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/* K40 Family ***********************************************************************
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*
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* The interrupt vectors for the following parts is defined in Freescale document
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@@ -184,7 +186,8 @@
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* now) seems to justify the waste.
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*/
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# define NR_IRQS (111) /* 111 vectors, 94 interrupts, 111 IRQ numbers */
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# define NR_VECTORS (111) /* 111 vectors */
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# define NR_IRQS (111) /* 94 interrupts but 111 IRQ numbers */
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/* K60 Family ***********************************************************************
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*
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@@ -297,8 +300,8 @@
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* now) seems to justify the waste.
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*/
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# define NR_IRQS (108)
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# define NR_IRQS (111) /* 120 vectors, 97 interrupts, 108 IRQ numbers */
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# define NR_VECTORS (120) /* 120 vectors */
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# define NR_IRQS (108) /* 97 interrupts but 108 IRQ numbers */
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#else
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/* The interrupt vectors for other parts are defined in other documents and may or
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@@ -58,8 +58,9 @@ endif
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CHIP_ASRCS =
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#CHIP_CSRCS = kinetis_allocateheap.c kinetis_can.c kinetis_clockconfig.c \
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# kinetis_clrpend.c kinetis_gpio.c kinetis_idle.c kinetis_irq.c kinetis_lowputc.c \
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# kinetis_serial.c kinetis_spi.c kinetis_ssp.c kinetis_start.c kinetis_timerisr.c
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# kinetis_clrpend.c kinetis_gpio.c kinetis_idle.c kinetis_lowputc.c \
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# kinetis_serial.c kinetis_spi.c kinetis_ssp.c kinetis_timerisr.c
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CHIP_CSRCS = kinetis_irq.c kinetis_start.c
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# Configuration-dependent Kinetis files
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Executable
+533
File diff suppressed because it is too large
Load Diff
Executable
+151
@@ -0,0 +1,151 @@
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/****************************************************************************
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* arch/arm/src/kinetis/kinetis_start.c
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* arch/arm/src/chip/kinetis_start.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/init.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "up_internal.h"
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#include "kinetis_internal.h"
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/****************************************************************************
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* Private Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: showprogress
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*
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* Description:
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* Print a character on the UART to show boot status.
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*
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****************************************************************************/
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#ifdef CONFIG_DEBUG
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# define showprogress(c) up_lowputc(c)
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#else
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# define showprogress(c)
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: _start
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*
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* Description:
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* This is the reset entry point.
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*
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****************************************************************************/
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void __start(void)
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{
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const uint32_t *src;
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uint32_t *dest;
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/* Configure the uart so that we can get debug output as soon as possible */
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kinetis_clockconfig();
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kinetis_lowsetup();
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showprogress('A');
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/* Clear .bss. We'll do this inline (vs. calling memset) just to be
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* certain that there are no issues with the state of global variables.
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*/
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for (dest = &_sbss; dest < &_ebss; )
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{
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*dest++ = 0;
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}
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showprogress('B');
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/* Move the intialized data section from his temporary holding spot in
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* FLASH into the correct place in SRAM. The correct place in SRAM is
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* give by _sdata and _edata. The temporary location is in FLASH at the
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* end of all of the other read-only data (.text, .rodata) at _eronly.
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*/
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for (src = &_eronly, dest = &_sdata; dest < &_edata; )
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{
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*dest++ = *src++;
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}
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showprogress('C');
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/* Perform early serial initialization */
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#ifdef CONFIG_USE_EARLYSERIALINIT
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up_earlyserialinit();
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#endif
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showprogress('D');
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/* Initialize onboard resources */
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kinetis_boardinitialize();
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showprogress('E');
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/* Then start NuttX */
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showprogress('\r');
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showprogress('\n');
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os_start();
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/* Shouldn't get here */
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for(;;);
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}
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