This logs the status register on timeout, so it is easier to determine the cause of the failure.
Signed-off-by: Sean Anderson seanga2@gmail.com ---
drivers/spi/designware_spi.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/spi/designware_spi.c b/drivers/spi/designware_spi.c index 742121140d..519d6e32bd 100644 --- a/drivers/spi/designware_spi.c +++ b/drivers/spi/designware_spi.c @@ -552,6 +552,7 @@ static int dw_spi_xfer(struct udevice *dev, unsigned int bitlen, if (readl_poll_timeout(priv->regs + DW_SPI_SR, val, (val & SR_TF_EMPT) && !(val & SR_BUSY), RX_TIMEOUT * 1000)) { + dev_dbg(bus, "timed out; sr=%x\n", dw_read(priv, DW_SPI_SR)); ret = -ETIMEDOUT; }
@@ -639,6 +640,8 @@ static int dw_spi_exec_op(struct spi_slave *slave, const struct spi_mem_op *op) if (readl_poll_timeout(priv->regs + DW_SPI_SR, val, (val & SR_TF_EMPT) && !(val & SR_BUSY), RX_TIMEOUT * 1000)) { + dev_dbg(bus, "timed out; sr=%x\n", + dw_read(priv, DW_SPI_SR)); ret = -ETIMEDOUT; } }