imx: mx6ulevk: change QSPI PAD DSE to 120ohm

The current pad DSE for QSPI is 60ohm. This setting cause
too strong drive to clock and data signals. Need to change
the DSE to 120ohm for better signal quality.

Signed-off-by: Peng Fan <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Fabio Estevam <[email protected]>
Reviewed-by: Fabio Estevam <[email protected]>

diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
index 112e6abce7646efa0d0a2f1225474ec57b465f60..92c92117cd9b2ecae52829725b02645b9ab080ff 100644 (file)
--- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
+++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
@@ -303,7 +303,7 @@ static void setup_iomux_uart(void)
 
 #define QSPI_PAD_CTRL1 \
        (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
-        PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_60ohm)
+        PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_120ohm)
 
 static iomux_v3_cfg_t const quadspi_pads[] = {
        MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),