The IGEPv2 board has an SMSC LAN9221i ethernet chip connected to
the OMAP3 processor though the General-Purpose Memory Controller.
This patch adds a device node for the ethernet chip as a GPMC child
and all its dependencies (regulators, GPIO and pin muxs).
Signed-off-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/omap3-igep.dtsi | 6 ++++
arch/arm/boot/dts/omap3-igep0020.dts | 53 ++++++++++++++++++++++++++++++++++
2 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index f8fe3b7..d5cd504 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -62,6 +62,12 @@
0x126 0x0100 /* sdmmc1_dat7.sdmmc1_dat7 INPUT | MODE 0 */
>;
};
+
+ smsc911x_pins: pinmux_smsc911x_pins {
+ pinctrl-single,pins = <
+ 0x1a2 0x0104 /* mcspi1_cs2.gpio_176 INPUT | MODE4 */
+ >;
+ };
};
&i2c1 {
diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index e2b9849..4bac32e 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -40,6 +40,18 @@
gpios = <&twl_gpio 19 1>;
};
};
+
+ vddvario: regulator-vddvario {
+ compatible = "regulator-fixed";
+ regulator-name = "vddvario";
+ regulator-always-on;
+ };
+
+ vdd33a: regulator-vdd33a {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd33a";
+ regulator-always-on;
+ };
};
&i2c3 {
@@ -54,3 +66,44 @@
reg = <0x50>;
};
};
+
+&gpmc {
+ ranges = <5 0 0x2c000000 0x1000000>;
+ ethernet@5,0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&smsc911x_pins>;
+ compatible = "smsc,lan9221", "smsc,lan9115";
+ reg = <5 0 0xff>;
+ bank-width = <2>;
+
+ gpmc,mux-add-data;
+ gpmc,cs-on-ns = <0>;
+ gpmc,cs-rd-off-ns = <186>;
+ gpmc,cs-wr-off-ns = <186>;
+ gpmc,adv-on-ns = <12>;
+ gpmc,adv-rd-off-ns = <48>;
+ gpmc,adv-wr-off-ns = <48>;
+ gpmc,oe-on-ns = <54>;
+ gpmc,oe-off-ns = <168>;
+ gpmc,we-on-ns = <54>;
+ gpmc,we-off-ns = <168>;
+ gpmc,rd-cycle-ns = <186>;
+ gpmc,wr-cycle-ns = <186>;
+ gpmc,access-ns = <114>;
+ gpmc,page-burst-access-ns = <6>;
+ gpmc,bus-turnaround-ns = <12>;
+ gpmc,cycle2cycle-delay-ns = <18>;
+ gpmc,wr-data-mux-bus-ns = <90>;
+ gpmc,wr-access-ns = <186>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
+
+ interrupt-parent = <&gpio6>;
+ interrupts = <16 8>;
+ vmmc-supply = <&vddvario>;
+ vmmc_aux-supply = <&vdd33a>;
+ reg-io-width = <4>;
+
+ smsc,save-mac-address;
+ };
+};
--
1.7.7.6
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