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

This commit is contained in:
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
flash
*/
#define ECC_CHECK_CHUNK_SIZE (32*sizeof(uint32_t))
void check_ecc_errors(void)
{
__disable_fault_irq();
// stm32_flash_corrupt(0x8043200);
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;
while (ofs < BOARD_FLASH_SIZE*1024) {
if (FLASH->SR1 != 0) {
@ -556,9 +564,9 @@ void check_ecc_errors(void)
dmaStartMemCopy(dma,
STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_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);
ofs += sizeof(buf);
ofs += ECC_CHECK_CHUNK_SIZE;
}
dmaStreamFree(dma);