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AP_Bootloader: use malloc_dma to allocate dma safe memory for ecc check

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bugobliterator 2024-06-21 14:14:54 +10:00 committed by Andrew Tridgell
parent d466618b11
commit 39c5322133
1 changed files with 11 additions and 3 deletions
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14
Tools/AP_Bootloader/support.cpp
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@ -538,11 +538,19 @@ void port_setbaud(uint32_t baudrate)
check if flash has any ECC errors and if it does then erase all of check if flash has any ECC errors and if it does then erase all of
flash flash
*/ */
#define ECC_CHECK_CHUNK_SIZE (32*sizeof(uint32_t))
void check_ecc_errors(void) void check_ecc_errors(void)
{ {
__disable_fault_irq(); __disable_fault_irq();
// stm32_flash_corrupt(0x8043200);
auto *dma = dmaStreamAlloc(STM32_DMA_STREAM_ID(1, 1), 0, nullptr, nullptr); auto *dma = dmaStreamAlloc(STM32_DMA_STREAM_ID(1, 1), 0, nullptr, nullptr);
uint32_t buf[32];
uint32_t *buf = (uint32_t*)malloc_dma(ECC_CHECK_CHUNK_SIZE);
if (buf == nullptr) {
// DMA'ble memory not available
return;
}
uint32_t ofs = 0; uint32_t ofs = 0;
while (ofs < BOARD_FLASH_SIZE*1024) { while (ofs < BOARD_FLASH_SIZE*1024) {
if (FLASH->SR1 != 0) { if (FLASH->SR1 != 0) {
@ -556,9 +564,9 @@ void check_ecc_errors(void)
dmaStartMemCopy(dma, dmaStartMemCopy(dma,
STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE | STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE |
STM32_DMA_CR_MSIZE_BYTE, STM32_DMA_CR_MSIZE_BYTE,
ofs+(uint8_t*)FLASH_BASE, buf, sizeof(buf)); ofs+(uint8_t*)FLASH_BASE, buf, ECC_CHECK_CHUNK_SIZE);
dmaWaitCompletion(dma); dmaWaitCompletion(dma);
ofs += sizeof(buf); ofs += ECC_CHECK_CHUNK_SIZE;
} }
dmaStreamFree(dma); dmaStreamFree(dma);