>From 6b429d8fd28c6ebd6600a120ccba5cafd6bd07e4 Mon Sep 17 00:00:00 2001
Message-Id: <6b429d8fd28c6ebd6600a120ccba5cafd6bd07e4.1416158605.git.juergen@xxxxxxxxxxxxxx>
In-Reply-To: <cover.1416158605.git.juergen@xxxxxxxxxxxxxx>
References: <cover.1416158605.git.juergen@xxxxxxxxxxxxxx>
From: Juergen Borleis <juergen@xxxxxxxxxxxxxx>
Date: Sat, 15 Nov 2014 16:06:26 +0100
Subject: [PATCH 8/8] ARM/Mini6410: enable USB OHCI support
To: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-samsung-soc@xxxxxxxxxxxxxxx
All required drivers are now in place. Make use of them.
Signed-off-by: Juergen Borleis <juergen@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/s3c6410-mini6410.dts | 50 ++++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/arch/arm/boot/dts/s3c6410-mini6410.dts b/arch/arm/boot/dts/s3c6410-mini6410.dts
index 1e196ca..ab606d9 100644
--- a/arch/arm/boot/dts/s3c6410-mini6410.dts
+++ b/arch/arm/boot/dts/s3c6410-mini6410.dts
@@ -30,6 +30,42 @@
bootargs = "console=ttySAC0,115200n8 earlyprintk rootwait root=/dev/mmcblk0p1";
};
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_regs>;
+
+ votg: fixed-regulator@6 {
+ /* U6 is of type XC6219B331MR = 3.3 V */
+ /* digital power for the USB OTG phy */
+ compatible = "regulator-fixed";
+ regulator-name = "vddotg";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ /*
+ * Both 'vddotg' and 'vddotgi' are controlled via GPIO GPF13
+ * We cannot forward the same GPIO pin twice, so let the lower
+ * voltage regulator looks like it uses the voltage from the
+ * other regulator.
+ */
+ votgi: fixed-regulator@7 {
+ /* U7 is of type XC6219B121MR = 1.2 V */
+ /* analog power for the USB OTG phy */
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_regs>;
+ compatible = "regulator-fixed";
+ regulator-name = "vddotgi";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ gpio = <&gpf 13 GPIO_ACTIVE_HIGH>; /* active if GPF13 is high */
+ enable-active-high;
+ };
+ };
+
clocks {
compatible = "simple-bus";
#address-cells = <1>;
@@ -213,6 +249,11 @@
"gpn-4", "gpn-5", "gpl-11", "gpl-12";
samsung,pin-pud = <PIN_PULL_NONE>;
};
+
+ gpio_regs: gpio-regs {
+ samsung,pins = "gpf-13";
+ samsung,pin-pud = <PIN_PULL_NONE>;
+ };
};
&i2c0 {
@@ -234,3 +275,12 @@
&rtc {
status = "okay";
};
+
+&usbphy {
+ status = "okay";
+ analog-supply = <&votgi>; /* analog power supply */
+};
+
+&usbhost {
+ status = "okay";
+};
--
1.8.1
--
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