From bf7655e340d0e1994494158b051400c5f4eda052 Mon Sep 17 00:00:00 2001 From: Fugang Duan Date: Mon, 8 Dec 2014 18:40:02 +0800 Subject: [PATCH] ENGR00322839 ARM: dts: imx6sx: enet RGMII TXCLK output drive strength is weak The current enet RGMII TXCLK rise/fall time which could be observed(~0.85ns) is longer than requirement (<=0.75ns). The current setting, SPEED/DSE/SRE=10/110/1 is used, and then it needs to increase DSE to 111 "37 Ohm @ 3.3V, 21 Ohm@1.8V, 34 Ohm for DDR". After the change RGMII TXCLK match the spec requirement. Signed-off-by: Fugang Duan --- arch/arm/boot/dts/imx6sx-sdb.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts index 5bca5fb2af29..e406d534524a 100644 --- a/arch/arm/boot/dts/imx6sx-sdb.dts +++ b/arch/arm/boot/dts/imx6sx-sdb.dts @@ -641,7 +641,7 @@ fsl,pins = < MX6SX_PAD_ENET1_MDIO__ENET1_MDIO 0xa0b1 MX6SX_PAD_ENET1_MDC__ENET1_MDC 0xa0b1 - MX6SX_PAD_RGMII1_TXC__ENET1_RGMII_TXC 0xa0b1 + MX6SX_PAD_RGMII1_TXC__ENET1_RGMII_TXC 0xa0b9 MX6SX_PAD_RGMII1_TD0__ENET1_TX_DATA_0 0xa0b1 MX6SX_PAD_RGMII1_TD1__ENET1_TX_DATA_1 0xa0b1 MX6SX_PAD_RGMII1_TD2__ENET1_TX_DATA_2 0xa0b1 -- 2.39.5