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STM32F7 - DMA working on SDMMC

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This commit is contained in:
David Sidrane 2016-07-07 15:49:47 -10:00
parent f8d3a872ee
commit deb3e8143c
1 changed files with 2 additions and 1 deletions
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3
arch/arm/src/stm32f7/stm32_sdmmc.c
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@ -2848,7 +2848,7 @@ static int stm32_dmapreflight(FAR struct sdio_dev_s *dev,
/* DMA must be possible to the buffer */ /* DMA must be possible to the buffer */
if (!stm32_dmacapable((uintptr_t)buffer, (buflen + 3) >> 2, if (!stm32_dmacapable((uintptr_t)buffer, (buflen + 3) >> 2,
STM32_SDMMC_RXDMA32_CONFIG | priv->dmapri)) SDMMC_RXDMA32_CONFIG | priv->dmapri))
{ {
return -EFAULT; return -EFAULT;
} }
@ -3012,6 +3012,7 @@ static int stm32_dmasendsetup(FAR struct sdio_dev_s *dev,
stm32_dmasetup(priv->dma, priv->base + STM32_SDMMC_FIFO_OFFSET, (uint32_t)buffer, stm32_dmasetup(priv->dma, priv->base + STM32_SDMMC_FIFO_OFFSET, (uint32_t)buffer,
(buflen + 3) >> 2, SDMMC_TXDMA32_CONFIG | priv->dmapri); (buflen + 3) >> 2, SDMMC_TXDMA32_CONFIG | priv->dmapri);
sdmmc_modifyreg32(priv, STM32_SDMMC_DCTRL_OFFSET, 0, STM32_SDMMC_DCTRL_DMAEN);
stm32_sample(priv, SAMPLENDX_BEFORE_ENABLE); stm32_sample(priv, SAMPLENDX_BEFORE_ENABLE);
/* Start the DMA */ /* Start the DMA */