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flush cache before setup

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This commit is contained in:
Lok Tep 2016-06-21 14:02:53 +02:00
parent e70ac97cef
commit bdfd3e8248
1 changed files with 4 additions and 4 deletions
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8
arch/arm/src/stm32f7/stm32_sdmmc.c
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@ -2694,6 +2694,10 @@ static int stm32_dmasendsetup(FAR struct sdio_dev_s *dev,
stm32_sampleinit();
stm32_sample(priv, SAMPLENDX_BEFORE_SETUP);
/* Flush cache to physical memory */
arch_flush_dcache((uintptr_t)buffer, (uintptr_t)buffer + buflen);
/* Save the source buffer information for use by the interrupt handler */
priv->buffer = (uint32_t *)buffer;
@ -2712,10 +2716,6 @@ static int stm32_dmasendsetup(FAR struct sdio_dev_s *dev,
stm32_sample(priv, SAMPLENDX_BEFORE_ENABLE);
/* Flush cache to physical memory */
arch_flush_dcache((uintptr_t)buffer, (uintptr_t)buffer + buflen);
/* Start the DMA */
stm32_dmastart(priv->dma, stm32_dmacallback, priv, false);