[PATCH 1/2] ARM: Exynos5250: Enabling ehci-s5p driver
From: Vivek Gautam <hidden>
Date: 2012-10-05 10:10:17
Also in:
linux-devicetree, linux-samsung-soc
Subsystem:
arm port, open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers:
Russell King, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman
Adding EHCI device tree node for Exynos5250 along with the device base adress and gpio line for vbus. Signed-off-by: Vivek Gautam <redacted> --- .../devicetree/bindings/usb/exynos-usb.txt | 25 ++++++++++++++++++++ arch/arm/boot/dts/exynos5250-smdk5250.dts | 4 +++ arch/arm/boot/dts/exynos5250.dtsi | 6 ++++ arch/arm/mach-exynos/include/mach/map.h | 1 + arch/arm/mach-exynos/mach-exynos5-dt.c | 2 + 5 files changed, 38 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/exynos-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
new file mode 100644
index 0000000..56e35c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt@@ -0,0 +1,25 @@ +Samsung Exynos SoC USB controller + +The USB devices interface with USB controllers on Exynos SOCs. +The device node has following properties. + +EHCI +Required properties: + - compatible: should be "samsung,exynos-ehci" for USB 2.0 + EHCI controller in host mode. + - reg: physical base address of the controller and length of memory mapped + region. + - interrupts: interrupt number to the cpu. + +Optional properties: + - samsung,vbus-gpio: if present, specifies the GPIO that + needs to be pulled up for the bus to be powered. + +Example: + + ehci { + compatible = "samsung,exynos-ehci"; + reg = <0x12110000 0x100>; + interrupts = <0 71 0>; + samsung,vbus-gpio = <&gpx2 6 1 3 3>; + };
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index a352df4..089576b 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts@@ -166,4 +166,8 @@ spi_2: spi at 12d40000 { status = "disabled"; }; + + ehci { + samsung,vbus-gpio = <&gpx2 6 1 3 3>; + }; };
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index dddfd6e..73ea844 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi@@ -218,6 +218,12 @@ #size-cells = <0>; }; + ehci { + compatible = "samsung,exynos-ehci"; + reg = <0x12110000 0x100>; + interrupts = <0 71 0>; + }; + amba { #address-cells = <1>; #size-cells = <1>;
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 8480849..825fe40 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h@@ -195,6 +195,7 @@ #define EXYNOS4_PA_EHCI 0x12580000 #define EXYNOS4_PA_OHCI 0x12590000 #define EXYNOS4_PA_HSPHY 0x125B0000 +#define EXYNOS5_PA_EHCI 0x12110000 #define EXYNOS4_PA_MFC 0x13400000 #define EXYNOS4_PA_UART 0x13800000
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index fee9dcd..6d950d7b 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c@@ -72,6 +72,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = { "exynos-gsc.2", NULL), OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3, "exynos-gsc.3", NULL), + OF_DEV_AUXDATA("samsung,exynos-ehci", EXYNOS5_PA_EHCI, + "s5p-ehci", NULL), {}, };
--
1.7.6.5