[U-Boot] [PATCH 3/9] mx23: Fix transfer size setting for SPI

Otavio Salvador
2013-01-22T01:47:23Z

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
drivers/spi/mxs_spi.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c
index bb865b7..10bf5aa 100644
--- a/drivers/spi/mxs_spi.c
+++ b/drivers/spi/mxs_spi.c
@@ -167,8 +167,13 @@ static int mxs_spi_xfer_pio(struct mxs_spi_slave *slave,
mxs_spi_start_xfer(ssp_regs);

while (length--) {
+#if defined(CONFIG_MX23)
+ writel(SSP_CTRL0_XFER_COUNT_MASK, &ssp_regs->hw_ssp_ctrl0_clr);
+ writel(1, &ssp_regs->hw_ssp_ctrl0_set);
+#elif defined(CONFIG_MX28)
/* We transfer 1 byte */
writel(1, &ssp_regs->hw_ssp_xfer_size);
+#endif

if ((flags & SPI_XFER_END) && !length)
mxs_spi_end_xfer(ssp_regs);
--
1.8.1