diff options
Diffstat (limited to 'drivers/spi/spi-altera.c')
| -rw-r--r-- | drivers/spi/spi-altera.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c index 81b9adb6e766..453fa5ac04ad 100644 --- a/drivers/spi/spi-altera.c +++ b/drivers/spi/spi-altera.c @@ -150,12 +150,12 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t) hw->imr &= ~ALTERA_SPI_CONTROL_IRRDY_MSK; writel(hw->imr, hw->base + ALTERA_SPI_CONTROL); } else { - /* send the first byte */ - writel(hw_txbyte(hw, 0), hw->base + ALTERA_SPI_TXDATA); - - while (1) { + while (hw->count < hw->len) { unsigned int rxd; + writel(hw_txbyte(hw, hw->count), + hw->base + ALTERA_SPI_TXDATA); + while (!(readl(hw->base + ALTERA_SPI_STATUS) & ALTERA_SPI_STATUS_RRDY_MSK)) cpu_relax(); @@ -174,14 +174,7 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t) } hw->count++; - - if (hw->count < hw->len) - writel(hw_txbyte(hw, hw->count), - hw->base + ALTERA_SPI_TXDATA); - else - break; } - } return hw->count * hw->bytes_per_word; |