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stm32/sdram: Expose the result of sdram startup test in stm32_main. 

This means boards can choose to only use it for gc heap if the test passes.
This commit is contained in:
Andrew Leech 2020-01-31 11:31:23 +11:00 committed by Damien George
parent b51a2c266a
commit ff9a61b5a8
3 changed files with 9 additions and 8 deletions
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4
ports/stm32/boards/STM32F429DISC/mpconfigboard.h
View File

@ -79,8 +79,8 @@
// SDRAM
#define MICROPY_HW_SDRAM_SIZE (64 / 8 * 1024 * 1024) // 64 Mbit
#define MICROPY_HW_SDRAM_STARTUP_TEST (1)
#define MICROPY_HEAP_START sdram_start()
#define MICROPY_HEAP_END sdram_end()
#define MICROPY_HEAP_START ((sdram_valid) ? sdram_start() : &_heap_start)
#define MICROPY_HEAP_END ((sdram_valid) ? sdram_end() : &_heap_end)
// Timing configuration for 90 Mhz (11.90ns) of SD clock frequency (180Mhz/2)
#define MICROPY_HW_SDRAM_TIMING_TMRD (2)

3
ports/stm32/main.c
View File

@ -500,8 +500,9 @@ void stm32_main(uint32_t reset_mode) {
#endif
#if MICROPY_HW_SDRAM_SIZE
sdram_init();
bool sdram_valid = true;
#if MICROPY_HW_SDRAM_STARTUP_TEST
sdram_test(true);
sdram_valid = sdram_test(true);
#endif
#endif
#if MICROPY_PY_THREAD

10
ports/stm32/sdram.c
View File

@ -255,7 +255,7 @@ static void sdram_init_seq(SDRAM_HandleTypeDef
#endif
}
bool __attribute__((optimize("O0"))) sdram_test(bool fast) {
bool sdram_test(bool fast) {
uint8_t const pattern = 0xaa;
uint8_t const antipattern = 0x55;
uint8_t *const mem_base = (uint8_t*)sdram_start();
@ -265,7 +265,7 @@ bool __attribute__((optimize("O0"))) sdram_test(bool fast) {
*mem_base = i;
if (*mem_base != i) {
printf("data bus lines test failed! data (%d)\n", i);
__asm__ volatile ("BKPT");
return false;
}
}
@ -275,7 +275,7 @@ bool __attribute__((optimize("O0"))) sdram_test(bool fast) {
mem_base[i] = pattern;
if (mem_base[i] != pattern) {
printf("address bus lines test failed! address (%p)\n", &mem_base[i]);
__asm__ volatile ("BKPT");
return false;
}
}
@ -284,7 +284,7 @@ bool __attribute__((optimize("O0"))) sdram_test(bool fast) {
for (uint32_t i = 1; i < MICROPY_HW_SDRAM_SIZE; i <<= 1) {
if (mem_base[i] != pattern) {
printf("address bus overlap %p\n", &mem_base[i]);
__asm__ volatile ("BKPT");
return false;
}
}
@ -294,7 +294,7 @@ bool __attribute__((optimize("O0"))) sdram_test(bool fast) {
mem_base[i] = pattern;
if (mem_base[i] != pattern) {
printf("address bus test failed! address (%p)\n", &mem_base[i]);
__asm__ volatile ("BKPT");
return false;
}
}
} else {