X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Farm%2Fdrv%2Fspi_dma_at91.c;h=c4cbf2da70a37b288ddf9fa63ce484577d3c5e3a;hb=f0c6ef0573ea9487ce6852249828cfd39cdae6bf;hp=03b98d85e390f8f3d776b8759c3080f28155b016;hpb=0ee36f785f12c4439cfad7e96d80b6637941f6e8;p=bertos.git

diff --git a/bertos/cpu/arm/drv/spi_dma_at91.c b/bertos/cpu/arm/drv/spi_dma_at91.c
index 03b98d85..c4cbf2da 100644
--- a/bertos/cpu/arm/drv/spi_dma_at91.c
+++ b/bertos/cpu/arm/drv/spi_dma_at91.c
@@ -76,11 +76,11 @@ static int spi_dma_flush(UNUSED_ARG(struct KFile *, fd))
 
 static size_t spi_dma_write(struct KFile *fd, const void *_buf, size_t size)
 {
-	spi_dma_flush(fd);
 	SPI0_PTCR = BV(PDC_TXTDIS);
 	SPI0_TPR = (reg32_t)_buf;
 	SPI0_TCR = size;
 	SPI0_PTCR = BV(PDC_TXTEN);
+	spi_dma_flush(fd);
 	return size;
 }
 
@@ -92,13 +92,11 @@ static size_t spi_dma_write(struct KFile *fd, const void *_buf, size_t size)
  */
 static const uint8_t tx_dummy_buf[CONFIG_SPI_DMA_MAX_RX] = { [0 ... (CONFIG_SPI_DMA_MAX_RX - 1)] = 0xFF };
 
-static size_t spi_dma_read(struct KFile *fd, void *_buf, size_t size)
+static size_t spi_dma_read(UNUSED_ARG(struct KFile *, fd), void *_buf, size_t size)
 {
 	size_t count, total_rx = 0;
 	uint8_t *buf = (uint8_t *)_buf;
 
-	spi_dma_flush(fd);
-
 	while (size)
 	{
 		count = MIN(size, (size_t)CONFIG_SPI_DMA_MAX_RX);