diff options
Diffstat (limited to 'os/hal/platforms/STM32/sdc_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32/sdc_lld.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/os/hal/platforms/STM32/sdc_lld.c b/os/hal/platforms/STM32/sdc_lld.c index 74ffd4184..d6876d3be 100644 --- a/os/hal/platforms/STM32/sdc_lld.c +++ b/os/hal/platforms/STM32/sdc_lld.c @@ -334,13 +334,6 @@ bool_t sdc_lld_read(SDCDriver *sdcp, uint32_t startblk, uint8_t *buf, uint32_t n) {
uint32_t sta, resp[1];
- /* Prepares the DMA channel for reading.*/
- dmaChannelSetup(&STM32_DMA2->channels[STM32_DMA_CHANNEL_4],
- (n * SDC_BLOCK_SIZE) / sizeof (uint32_t), buf,
- (STM32_SDC_SDIO_DMA_PRIORITY << 12) |
- DMA_CCR1_PSIZE_1 | DMA_CCR1_MSIZE_1 |
- DMA_CCR1_MINC);
-
/* Setting up data transfer.
Options: Card to Controller, Block mode, DMA mode, 512 bytes blocks.*/
SDIO->ICR = 0xFFFFFFFF;
@@ -353,7 +346,12 @@ bool_t sdc_lld_read(SDCDriver *sdcp, uint32_t startblk, SDIO_DCTRL_DTEN;
/* DMA channel activation.*/
- dmaEnableChannel(STM32_DMA2, STM32_DMA_CHANNEL_4);
+ /* Prepares the DMA channel for reading.*/
+ dmaChannelSetup(&STM32_DMA2->channels[STM32_DMA_CHANNEL_4],
+ (n * SDC_BLOCK_SIZE) / sizeof (uint32_t), buf,
+ (STM32_SDC_SDIO_DMA_PRIORITY << 12) |
+ DMA_CCR1_PSIZE_1 | DMA_CCR1_MSIZE_1 |
+ DMA_CCR1_EN);
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_READ_MULTIPLE_BLOCK,
startblk, resp) ||
|