From 2955dbfcdaa887e55ecea68aadc1957fefb53e3e Mon Sep 17 00:00:00 2001 From: "dzzxzz@gmail.com" Date: Mon, 17 Dec 2012 08:21:29 +0000 Subject: add LPC4330 BSP based on NGX xplorer development board git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2487 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- libcpu/arm/cortex-m4/cpuport.c | 313 +++++++++++++++++++++-------------------- 1 file changed, 160 insertions(+), 153 deletions(-) (limited to 'libcpu/arm') diff --git a/libcpu/arm/cortex-m4/cpuport.c b/libcpu/arm/cortex-m4/cpuport.c index b8f00a7675..d320dccbb0 100644 --- a/libcpu/arm/cortex-m4/cpuport.c +++ b/libcpu/arm/cortex-m4/cpuport.c @@ -1,153 +1,160 @@ -/* - * File : cpuport.c - * This file is part of RT-Thread RTOS - * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rt-thread.org/license/LICENSE - * - * Change Logs: - * Date Author Notes - * 2011-10-21 Bernard the first version. - * 2011-10-27 aozima update for cortex-M4 FPU. - * 2011-12-31 aozima fixed stack align issues. - * 2012-01-01 aozima support context switch load/store FPU register. -*/ -#include - -#define USE_FPU /* ARMCC */ ( (defined ( __CC_ARM ) && defined ( __TARGET_FPU_VFP )) \ - /* IAR */ || (defined ( __ICCARM__ ) && defined ( __ARMVFP__ )) \ - /* GNU */ || (defined ( __GNUC__ ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) ) - -/* exception and interrupt handler table */ -rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread; -rt_uint32_t rt_thread_switch_interrupt_flag; - -struct exception_stack_frame -{ - rt_uint32_t r0; - rt_uint32_t r1; - rt_uint32_t r2; - rt_uint32_t r3; - rt_uint32_t r12; - rt_uint32_t lr; - rt_uint32_t pc; - rt_uint32_t psr; - -#if USE_FPU - /* FPU register */ - rt_uint32_t S0; - rt_uint32_t S1; - rt_uint32_t S2; - rt_uint32_t S3; - rt_uint32_t S4; - rt_uint32_t S5; - rt_uint32_t S6; - rt_uint32_t S7; - rt_uint32_t S8; - rt_uint32_t S9; - rt_uint32_t S10; - rt_uint32_t S11; - rt_uint32_t S12; - rt_uint32_t S13; - rt_uint32_t S14; - rt_uint32_t S15; - rt_uint32_t FPSCR; - rt_uint32_t NO_NAME; -#endif -}; - -struct stack_frame -{ - /* r4 ~ r11 register */ - rt_uint32_t r4; - rt_uint32_t r5; - rt_uint32_t r6; - rt_uint32_t r7; - rt_uint32_t r8; - rt_uint32_t r9; - rt_uint32_t r10; - rt_uint32_t r11; - -#if USE_FPU - /* FPU register s16 ~ s31 */ - rt_uint32_t s16; - rt_uint32_t s17; - rt_uint32_t s18; - rt_uint32_t s19; - rt_uint32_t s20; - rt_uint32_t s21; - rt_uint32_t s22; - rt_uint32_t s23; - rt_uint32_t s24; - rt_uint32_t s25; - rt_uint32_t s26; - rt_uint32_t s27; - rt_uint32_t s28; - rt_uint32_t s29; - rt_uint32_t s30; - rt_uint32_t s31; -#endif - - struct exception_stack_frame exception_stack_frame; -}; - -rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, - rt_uint8_t *stack_addr, void *texit) -{ - struct stack_frame * stack_frame; - rt_uint8_t * stk; - unsigned long i; - - stk = stack_addr + sizeof(rt_uint32_t); - - stk -= sizeof(struct stack_frame); - stack_frame = (struct stack_frame *)stk; - - /* init all register */ - for(i=0; iexception_stack_frame.r0 = (unsigned long)parameter; /* r0 : argument */ - stack_frame->exception_stack_frame.r1 = 0; /* r1 */ - stack_frame->exception_stack_frame.r2 = 0; /* r2 */ - stack_frame->exception_stack_frame.r3 = 0; /* r3 */ - stack_frame->exception_stack_frame.r12 = 0; /* r12 */ - stack_frame->exception_stack_frame.lr = (unsigned long)texit; /* lr */ - stack_frame->exception_stack_frame.pc = (unsigned long)tentry; /* entry point, pc */ - stack_frame->exception_stack_frame.psr = 0x01000000L; /* PSR */ - - /* return task's current stack address */ - return stk; -} - -extern void rt_hw_interrupt_thread_switch(void); -extern long list_thread(void); -extern rt_thread_t rt_current_thread; -void rt_hw_hard_fault_exception(struct exception_stack_frame * exception_stack) -{ - rt_kprintf("psr: 0x%08x\n", exception_stack->psr); - rt_kprintf(" pc: 0x%08x\n", exception_stack->pc); - rt_kprintf(" lr: 0x%08x\n", exception_stack->lr); - rt_kprintf("r12: 0x%08x\n", exception_stack->r12); - rt_kprintf("r03: 0x%08x\n", exception_stack->r3); - rt_kprintf("r02: 0x%08x\n", exception_stack->r2); - rt_kprintf("r01: 0x%08x\n", exception_stack->r1); - rt_kprintf("r00: 0x%08x\n", exception_stack->r0); - - rt_kprintf("hard fault on thread: %s\n", rt_current_thread->name); -#ifdef RT_USING_FINSH - list_thread(); -#endif - while (1); -} - -void rt_hw_cpu_shutdown() -{ - rt_kprintf("shutdown...\n"); - - RT_ASSERT(0); -} +/* + * File : cpuport.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rt-thread.org/license/LICENSE + * + * Change Logs: + * Date Author Notes + * 2011-10-21 Bernard the first version. + * 2011-10-27 aozima update for cortex-M4 FPU. + * 2011-12-31 aozima fixed stack align issues. + * 2012-01-01 aozima support context switch load/store FPU register. + * 2012-12-11 lgnq fixed the coding style. + */ + +#include + +#define USE_FPU /* ARMCC */ ( (defined ( __CC_ARM ) && defined ( __TARGET_FPU_VFP )) \ + /* IAR */ || (defined ( __ICCARM__ ) && defined ( __ARMVFP__ )) \ + /* GNU */ || (defined ( __GNUC__ ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) ) + +/* exception and interrupt handler table */ +rt_uint32_t rt_interrupt_from_thread; +rt_uint32_t rt_interrupt_to_thread; +rt_uint32_t rt_thread_switch_interrupt_flag; + +struct exception_stack_frame +{ + rt_uint32_t r0; + rt_uint32_t r1; + rt_uint32_t r2; + rt_uint32_t r3; + rt_uint32_t r12; + rt_uint32_t lr; + rt_uint32_t pc; + rt_uint32_t psr; + +#if USE_FPU + /* FPU register */ + rt_uint32_t S0; + rt_uint32_t S1; + rt_uint32_t S2; + rt_uint32_t S3; + rt_uint32_t S4; + rt_uint32_t S5; + rt_uint32_t S6; + rt_uint32_t S7; + rt_uint32_t S8; + rt_uint32_t S9; + rt_uint32_t S10; + rt_uint32_t S11; + rt_uint32_t S12; + rt_uint32_t S13; + rt_uint32_t S14; + rt_uint32_t S15; + rt_uint32_t FPSCR; + rt_uint32_t NO_NAME; +#endif +}; + +struct stack_frame +{ + /* r4 ~ r11 register */ + rt_uint32_t r4; + rt_uint32_t r5; + rt_uint32_t r6; + rt_uint32_t r7; + rt_uint32_t r8; + rt_uint32_t r9; + rt_uint32_t r10; + rt_uint32_t r11; + +#if USE_FPU + /* FPU register s16 ~ s31 */ + rt_uint32_t s16; + rt_uint32_t s17; + rt_uint32_t s18; + rt_uint32_t s19; + rt_uint32_t s20; + rt_uint32_t s21; + rt_uint32_t s22; + rt_uint32_t s23; + rt_uint32_t s24; + rt_uint32_t s25; + rt_uint32_t s26; + rt_uint32_t s27; + rt_uint32_t s28; + rt_uint32_t s29; + rt_uint32_t s30; + rt_uint32_t s31; +#endif + + struct exception_stack_frame exception_stack_frame; +}; + +rt_uint8_t *rt_hw_stack_init(void *tentry, + void *parameter, + rt_uint8_t *stack_addr, + void *texit) +{ + struct stack_frame *stack_frame; + rt_uint8_t *stk; + unsigned long i; + + stk = stack_addr + sizeof(rt_uint32_t); + stk -= sizeof(struct stack_frame); + + stack_frame = (struct stack_frame *)stk; + + /* init all register */ + for (i = 0; i < sizeof(struct stack_frame) / sizeof(rt_uint32_t); i ++) + { + ((rt_uint32_t *)stack_frame)[i] = 0xdeadbeef; + } + + stack_frame->exception_stack_frame.r0 = (unsigned long)parameter; /* r0 : argument */ + stack_frame->exception_stack_frame.r1 = 0; /* r1 */ + stack_frame->exception_stack_frame.r2 = 0; /* r2 */ + stack_frame->exception_stack_frame.r3 = 0; /* r3 */ + stack_frame->exception_stack_frame.r12 = 0; /* r12 */ + stack_frame->exception_stack_frame.lr = (unsigned long)texit; /* lr */ + stack_frame->exception_stack_frame.pc = (unsigned long)tentry; /* entry point, pc */ + stack_frame->exception_stack_frame.psr = 0x01000000L; /* PSR */ + + /* return task's current stack address */ + return stk; +} + +extern void rt_hw_interrupt_thread_switch(void); +extern long list_thread(void); +extern rt_thread_t rt_current_thread; +void rt_hw_hard_fault_exception(struct exception_stack_frame *exception_stack) +{ + rt_kprintf("psr: 0x%08x\n", exception_stack->psr); + rt_kprintf(" pc: 0x%08x\n", exception_stack->pc); + rt_kprintf(" lr: 0x%08x\n", exception_stack->lr); + rt_kprintf("r12: 0x%08x\n", exception_stack->r12); + rt_kprintf("r03: 0x%08x\n", exception_stack->r3); + rt_kprintf("r02: 0x%08x\n", exception_stack->r2); + rt_kprintf("r01: 0x%08x\n", exception_stack->r1); + rt_kprintf("r00: 0x%08x\n", exception_stack->r0); + + rt_kprintf("hard fault on thread: %s\n", rt_current_thread->name); + +#ifdef RT_USING_FINSH + list_thread(); +#endif + + while (1); +} + +void rt_hw_cpu_shutdown(void) +{ + rt_kprintf("shutdown...\n"); + + RT_ASSERT(0); +} -- cgit v1.3.1