From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcel Ziswiler Subject: [PATCH] ARM: tegra: colibri t30: fix on-module ethernet Date: Fri, 21 Nov 2014 11:41:41 +0100 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: swarren@wwwdotorg.org, thierry.reding@gmail.com Cc: devicetree@vger.kernel.org, linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, stefan@agner.ch, Marcel Ziswiler , linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org Looks like Ethernet only ever worked if U-Boot properly brought it up as both the reset as well as the VBUS lines were not actively handled in-kernel. This patch fixes this by just pulling up the reset GPIO and properly enabling VBUS via a GPIO enabled fixed regulator VBUS supply. Signed-off-by: Marcel Ziswiler --- Don't know whether this one could still make it into the current RC cycle as it is clearly a bug fix. arch/arm/boot/dts/tegra30-colibri.dtsi | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/arch/arm/boot/dts/tegra30-colibri.dtsi b/arch/arm/boot/dts/tegra30-colibri.dtsi index c4ed1be..ddbdb77 100644 --- a/arch/arm/boot/dts/tegra30-colibri.dtsi +++ b/arch/arm/boot/dts/tegra30-colibri.dtsi @@ -167,6 +167,22 @@ nvidia,pull = ; nvidia,tristate = ; }; + + /* LAN_RESET# */ + pex_l0_prsnt_n_pdd0 { + nvidia,pins = "pex_l0_prsnt_n_pdd0"; + nvidia,function = "rsvd3"; + nvidia,pull = ; + nvidia,tristate = ; + }; + + /* LAN_V_BUS */ + pex_l0_clkreq_n_pdd2 { + nvidia,pins = "pex_l0_clkreq_n_pdd2"; + nvidia,function = "rsvd3"; + nvidia,pull = ; + nvidia,tristate = ; + }; }; }; @@ -345,6 +361,7 @@ usb-phy@7d004000 { status = "okay"; nvidia,is-wired = <1>; + vbus-supply = <&lan_vbus_reg>; }; clocks { @@ -382,5 +399,17 @@ regulator-max-microvolt = <5000000>; regulator-always-on; }; + + /* LAN_V_BUS */ + lan_vbus_reg: regulator@102 { + compatible = "regulator-fixed"; + reg = <102>; + regulator-name = "lan_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpio TEGRA_GPIO(DD, 2) GPIO_ACTIVE_HIGH>; + enable-active-high; + vin-supply = <&charge_pump_5v0_reg>; + }; }; }; -- 1.9.3