commit 0d7cdc2abfc34125f0bc85f864d285f06675290a
author Peng Fan <van.freenix@gmail.com> Wed Jun 15 14:18:39 2016 +0800
committer Stefano Babic <sbabic@denx.de> Sat Jun 18 10:29:18 2016 +0200
tree d21aed7f16ec462bb38d5aaafc7d420051143a59
parent 288683280f18b267615d9afa86e1378727fe3405

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 <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c

diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
index 112e6ab..92c9211 100644
--- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
+++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
@@ -303,7 +303,7 @@
 
 #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),