Flush the transfer before exiting from write function.

[bertos.git] / bertos / cpu / arm / drv / spi_dma_at91.c

diff --git a/bertos/cpu/arm/drv/spi_dma_at91.c b/bertos/cpu/arm/drv/spi_dma_at91.c
index 03b98d85e390f8f3d776b8759c3080f28155b016..25a104103705be0e6af8fb1a1697d5828038ae65 100644 (file)
--- 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;
 }
 
@@ -97,8 +97,6 @@ static size_t spi_dma_read(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);