karo: tx6: change drive strength of Ethernet related pads to improve EMC

[karo-tx-uboot.git] / board / karo / tx6 / tx6qdl.c

diff --git a/board/karo/tx6/tx6qdl.c b/board/karo/tx6/tx6qdl.c
index 8300076658ff7b10bf756ca82a5d8fe818b21de6..b4a6fa9390f4e03340ac3335785d270612c03922 100644 (file)
--- a/board/karo/tx6/tx6qdl.c
+++ b/board/karo/tx6/tx6qdl.c
@@ -71,7 +71,7 @@ char __csf_data[0] __attribute__((section(".__csf_data")));
 #define TX6_FEC_PAD_CTRL       MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |      \
                                             PAD_CTL_SPEED_MED |        \
                                             PAD_CTL_DSE_40ohm |        \
-                                            PAD_CTL_SRE_FAST)
+                                            PAD_CTL_SRE_SLOW)
 #define TX6_GPIO_PAD_CTRL      MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |       \
                                             PAD_CTL_SPEED_MED |        \
                                             PAD_CTL_DSE_34ohm |        \
@@ -121,7 +121,10 @@ static const iomux_v3_cfg_t const tx6qdl_fec_pads[] = {
        /* FEC functions */
        MX6_PAD_ENET_MDC__ENET_MDC | TX6_FEC_PAD_CTRL,
        MX6_PAD_ENET_MDIO__ENET_MDIO | TX6_FEC_PAD_CTRL,
-       MX6_PAD_GPIO_16__ENET_REF_CLK | TX6_FEC_PAD_CTRL,
+       MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |
+                                                    PAD_CTL_SPEED_LOW |
+                                                    PAD_CTL_DSE_80ohm |
+                                                    PAD_CTL_SRE_SLOW),
        MX6_PAD_ENET_RX_ER__ENET_RX_ER | TX6_FEC_PAD_CTRL,
        MX6_PAD_ENET_CRS_DV__ENET_RX_EN | TX6_FEC_PAD_CTRL,
        MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | TX6_FEC_PAD_CTRL,