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sdmmc v2: Move address alignment check in driver

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CTCaer
2020-04-29 21:46:25 +03:00
parent eac6426125
commit 10e7e06048
4 changed files with 52 additions and 40 deletions
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26
bootloader/storage/sdmmc.c
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@@ -202,12 +202,34 @@ DPRINTF("readwrite: %08X\n", blkcnt);
int sdmmc_storage_read(sdmmc_storage_t *storage, u32 sector, u32 num_sectors, void *buf)
{
return _sdmmc_storage_readwrite(storage, sector, num_sectors, buf, 0);
// Ensure that buffer resides in DRAM and it's DMA aligned.
if (((u32)buf >= DRAM_START) && !((u32)buf % 8))
return _sdmmc_storage_readwrite(storage, sector, num_sectors, buf, 0);
if (num_sectors > (SDMMC_UP_BUF_SZ / 512))
return 0;
u8 *tmp_buf = (u8 *)SDMMC_UPPER_BUFFER;
if (_sdmmc_storage_readwrite(storage, sector, num_sectors, tmp_buf, 0))
{
memcpy(buf, tmp_buf, 512 * num_sectors);
return 1;
}
return 0;
}
int sdmmc_storage_write(sdmmc_storage_t *storage, u32 sector, u32 num_sectors, void *buf)
{
return _sdmmc_storage_readwrite(storage, sector, num_sectors, buf, 1);
// Ensure that buffer resides in DRAM and it's DMA aligned.
if (((u32)buf >= DRAM_START) && !((u32)buf % 8))
return _sdmmc_storage_readwrite(storage, sector, num_sectors, buf, 1);
if (num_sectors > (SDMMC_UP_BUF_SZ / 512))
return 0;
u8 *tmp_buf = (u8 *)SDMMC_UPPER_BUFFER;
memcpy(tmp_buf, buf, 512 * num_sectors);
return _sdmmc_storage_readwrite(storage, sector, num_sectors, tmp_buf, 1);
}
/*