diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2016-10-21 13:35:53 +0530 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2016-11-01 21:47:25 +0800 |
| commit | 801173fe6f488b310dab26eddcb6d77833beab8e (patch) | |
| tree | 916ff25309c985f37855e64be40009af51a31e7d | |
| parent | 9daee307694027eac4b10baa9cd3f2070f7459ba (diff) | |
| download | blackbird-obmc-linux-801173fe6f488b310dab26eddcb6d77833beab8e.tar.gz blackbird-obmc-linux-801173fe6f488b310dab26eddcb6d77833beab8e.zip | |
ARM: dts: imx6qdl-icore: Add FEC support
Add FEC support for Engicam i.CoreM6 dql modules.
Observed similar 'eth0: link is not ready' issue which was
discussed in [1] due rmii mode with external ref_clk, so added
clock node along with the properties mentioned by Shawn in [2]
FEC link log:
------------
$ ifconfig eth0 up
[ 27.905187] SMSC LAN8710/LAN8720 2188000.ethernet:00: attached PHY driver
[SMSC LAN8710/LAN8720] (mii_bus:phy_addr=2188000.ethernet:00, irq=-1)
[ 27.918982] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[1] https://patchwork.kernel.org/patch/3491061/
[2] https://patchwork.kernel.org/patch/3490511/
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm/boot/dts/imx6qdl-icore.dtsi | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6qdl-icore.dtsi b/arch/arm/boot/dts/imx6qdl-icore.dtsi index 0a1b60a4e4b6..023839a02dd0 100644 --- a/arch/arm/boot/dts/imx6qdl-icore.dtsi +++ b/arch/arm/boot/dts/imx6qdl-icore.dtsi @@ -74,6 +74,12 @@ regulator-boot-on; regulator-always-on; }; + + rmii_clk: clock-rmii-clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <25000000>; /* 25MHz for example */ + }; }; &can1 { @@ -93,6 +99,15 @@ assigned-clock-parents = <&clks IMX6QDL_CLK_OSC>; }; +&fec { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_enet>; + phy-reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>; + clocks = <&clks IMX6QDL_CLK_ENET>, <&clks IMX6QDL_CLK_ENET>, <&rmii_clk>; + phy-mode = "rmii"; + status = "okay"; +}; + &gpmi { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_gpmi_nand>; @@ -150,6 +165,22 @@ }; &iomuxc { + pinctrl_enet: enetgrp { + fsl,pins = < + MX6QDL_PAD_ENET_CRS_DV__ENET_RX_EN 0x1b0b0 + MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0x1b0b1 + MX6QDL_PAD_ENET_TX_EN__ENET_TX_EN 0x1b0b0 + MX6QDL_PAD_ENET_RXD1__ENET_RX_DATA1 0x1b0b0 + MX6QDL_PAD_ENET_RXD0__ENET_RX_DATA0 0x1b0b0 + MX6QDL_PAD_ENET_TXD1__ENET_TX_DATA1 0x1b0b0 + MX6QDL_PAD_ENET_TXD0__ENET_TX_DATA0 0x1b0b0 + MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0 + MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0 + MX6QDL_PAD_ENET_REF_CLK__GPIO1_IO23 0x1b0b0 + MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0 + >; + }; + pinctrl_flexcan1: flexcan1grp { fsl,pins = < MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x1b020 |
