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Support mbed_start_application for Cortex-M23

pull/6949/head
ccli8 2018-05-17 18:18:18 +08:00
parent 79640c6a88
commit b3f17a9e01
2 changed files with 27 additions and 2 deletions
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26
platform/mbed_application.c
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@ -48,12 +48,20 @@ static void powerdown_nvic()
int i; int i;
int j; int j;
#if defined(__CORTEX_M23)
isr_groups_32 = 16;
#else
isr_groups_32 = ((SCnSCB->ICTR & SCnSCB_ICTR_INTLINESNUM_Msk) >> SCnSCB_ICTR_INTLINESNUM_Pos) + 1; isr_groups_32 = ((SCnSCB->ICTR & SCnSCB_ICTR_INTLINESNUM_Msk) >> SCnSCB_ICTR_INTLINESNUM_Pos) + 1;
#endif
for (i = 0; i < isr_groups_32; i++) { for (i = 0; i < isr_groups_32; i++) {
NVIC->ICER[i] = 0xFFFFFFFF; NVIC->ICER[i] = 0xFFFFFFFF;
NVIC->ICPR[i] = 0xFFFFFFFF; NVIC->ICPR[i] = 0xFFFFFFFF;
for (j = 0; j < 8; j++) { for (j = 0; j < 8; j++) {
#if defined(__CORTEX_M23)
NVIC->IPR[i * 8 + j] = 0x00000000;
#else
NVIC->IP[i * 8 + j] = 0x00000000; NVIC->IP[i * 8 + j] = 0x00000000;
#endif
} }
} }
} }
@ -69,17 +77,20 @@ static void powerdown_scb(uint32_t vtor)
SCB->SCR = 0x00000000; SCB->SCR = 0x00000000;
// SCB->CCR - Implementation defined value // SCB->CCR - Implementation defined value
for (i = 0; i < 12; i++) { for (i = 0; i < 12; i++) {
#if defined(__CORTEX_M7) #if defined(__CORTEX_M7) || defined(__CORTEX_M23)
SCB->SHPR[i] = 0x00; SCB->SHPR[i] = 0x00;
#else #else
SCB->SHP[i] = 0x00; SCB->SHP[i] = 0x00;
#endif #endif
} }
SCB->SHCSR = 0x00000000; SCB->SHCSR = 0x00000000;
#if defined(__CORTEX_M23)
#else
SCB->CFSR = 0xFFFFFFFF; SCB->CFSR = 0xFFFFFFFF;
SCB->HFSR = SCB_HFSR_DEBUGEVT_Msk | SCB_HFSR_FORCED_Msk | SCB_HFSR_VECTTBL_Msk; SCB->HFSR = SCB_HFSR_DEBUGEVT_Msk | SCB_HFSR_FORCED_Msk | SCB_HFSR_VECTTBL_Msk;
SCB->DFSR = SCB_DFSR_EXTERNAL_Msk | SCB_DFSR_VCATCH_Msk | SCB->DFSR = SCB_DFSR_EXTERNAL_Msk | SCB_DFSR_VCATCH_Msk |
SCB_DFSR_DWTTRAP_Msk | SCB_DFSR_BKPT_Msk | SCB_DFSR_HALTED_Msk; SCB_DFSR_DWTTRAP_Msk | SCB_DFSR_BKPT_Msk | SCB_DFSR_HALTED_Msk;
#endif
// SCB->MMFAR - Implementation defined value // SCB->MMFAR - Implementation defined value
// SCB->BFAR - Implementation defined value // SCB->BFAR - Implementation defined value
// SCB->AFSR - Implementation defined value // SCB->AFSR - Implementation defined value
@ -106,6 +117,18 @@ __asm static void start_new_application(void *sp, void *pc)
void start_new_application(void *sp, void *pc) void start_new_application(void *sp, void *pc)
{ {
#if defined(__CORTEX_M23)
__asm volatile (
"ldr r2, =0 \n"
"msr control, r2 \n" // Switch to main stack
"mov sp, %0 \n"
"msr primask, r2 \n" // Enable interrupts
"bx %1 \n"
:
: "l" (sp), "l" (pc)
: "r2", "cc", "memory"
);
#else
__asm volatile ( __asm volatile (
"mov r2, #0 \n" "mov r2, #0 \n"
"msr control, r2 \n" // Switch to main stack "msr control, r2 \n" // Switch to main stack
@ -116,6 +139,7 @@ void start_new_application(void *sp, void *pc)
: "l" (sp), "l" (pc) : "l" (sp), "l" (pc)
: "r2", "cc", "memory" : "r2", "cc", "memory"
); );
#endif
} }
#else #else

3
platform/mbed_application.h
View File

@ -19,7 +19,8 @@
#include<stdint.h> #include<stdint.h>
#if defined(__CORTEX_M3) || defined(__CORTEX_M4) || defined(__CORTEX_M7) #if defined(__CORTEX_M3) || defined(__CORTEX_M4) || defined(__CORTEX_M7)\
|| defined(__CORTEX_M23)
#define MBED_APPLICATION_SUPPORT 1 #define MBED_APPLICATION_SUPPORT 1
#else #else
#define MBED_APPLICATION_SUPPORT 0 #define MBED_APPLICATION_SUPPORT 0