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

[karo-tx-uboot.git] / board / karo / tx6 / tx6ul.c

diff --git a/board/karo/tx6/tx6ul.c b/board/karo/tx6/tx6ul.c
index d97b26b733954989ef1bfbe0956e6a5a465aba3a..5606cbf432dbdd64fcf714f6b2c16be6ce3e7d89 100644 (file)
--- a/board/karo/tx6/tx6ul.c
+++ b/board/karo/tx6/tx6ul.c
@@ -86,7 +86,7 @@ char __csf_data[0] __attribute__((section(".__csf_data")));
                                        PAD_CTL_DSE_34ohm |             \
                                        PAD_CTL_SPEED_MED)
 #define TX6UL_ENET_PAD_CTRL    MUX_PAD_CTRL(PAD_CTL_SPEED_HIGH |       \
-                                       PAD_CTL_DSE_48ohm |             \
+                                       PAD_CTL_DSE_120ohm |            \
                                        PAD_CTL_PUS_100K_UP |           \
                                        PAD_CTL_SRE_FAST)
 #define TX6UL_GPIO_OUT_PAD_CTRL        MUX_PAD_CTRL(PAD_CTL_SPEED_LOW |        \
@@ -124,15 +124,15 @@ static const iomux_v3_cfg_t const tx6ul_pads[] = {
 
 static const iomux_v3_cfg_t const tx6ul_enet1_pads[] = {
        /* FEC functions */
-       MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(PAD_CTL_DSE_48ohm |
-                                                    PAD_CTL_SPEED_MED),
+       MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm |
+                                                    PAD_CTL_SPEED_LOW),
        MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |
-                                                     PAD_CTL_DSE_48ohm |
-                                                     PAD_CTL_SPEED_MED),
-       MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_CFG_SION |
-                                       MUX_PAD_CTRL(PAD_CTL_SPEED_MED |
-                                                    PAD_CTL_DSE_40ohm |
-                                                    PAD_CTL_SRE_FAST),
+                                                     PAD_CTL_DSE_120ohm |
+                                                     PAD_CTL_SPEED_LOW),
+       MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(PAD_CTL_SPEED_LOW |
+                                                    PAD_CTL_DSE_80ohm |
+                                                    PAD_CTL_SRE_SLOW),
+
        MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | TX6UL_ENET_PAD_CTRL,
        MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | TX6UL_ENET_PAD_CTRL,
        MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | TX6UL_ENET_PAD_CTRL,
@@ -143,10 +143,9 @@ static const iomux_v3_cfg_t const tx6ul_enet1_pads[] = {
 };
 
 static const iomux_v3_cfg_t const tx6ul_enet2_pads[] = {
-       MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_CFG_SION |
-                                       MUX_PAD_CTRL(PAD_CTL_SPEED_HIGH |
-                                                    PAD_CTL_DSE_48ohm |
-                                                    PAD_CTL_SRE_FAST),
+       MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(PAD_CTL_SPEED_LOW |
+                                                           PAD_CTL_DSE_80ohm |
+                                                           PAD_CTL_SRE_SLOW),
        MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | TX6UL_ENET_PAD_CTRL,
        MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | TX6UL_ENET_PAD_CTRL,
        MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | TX6UL_ENET_PAD_CTRL,