This patch adds EHCI device from device tree for exynos5
and adds platform data.
Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx>
---
.../devicetree/bindings/usb/exynos-usb.txt | 19 +++++++++++++++++++
arch/arm/boot/dts/exynos5250.dtsi | 6 ++++++
arch/arm/mach-exynos/mach-exynos5-dt.c | 9 +++++++++
3 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index 45dadca..b2349fe 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -39,3 +39,22 @@ ehci {
samsung,vbus-gpio = <&gpx2 6 1 3 3>;
};
+XHCI
+Required properties:
+ - compatible: should be "samsung,exynos-xhci" for USB 3.0
+ DWC3 controller in host mode.
+ - reg: physical base address of the controller and length
+ of memory mapped.
+ - interrupts: interrupt number to the cpu.
+ - samsung,vbus-gpio: if present, specifies the GPIO
+ that needs to be pulled up for the bus to be powered.
+
+Optional properties:
+ - samsung,vbus-gpio: if present, specifies the GPIO
+ that needs to be pulled up for the bus to be powered.
+
+xhci {
+ compatible = "samsung,exynos-xhci";
+ reg = <0x12000000 0x10000>;
+ interrupts = <0 72 0>;
+};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 988f52a..bc36584 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -70,6 +70,12 @@
interrupts = <0 71 0>;
};
+ xhci {
+ compatible = "samsung,exynos-xhci";
+ reg = <0x12000000 0x10000>;
+ interrupts = <0 72 0>;
+ };
+
rtc {
compatible = "samsung,s3c6410-rtc";
reg = <0x101E0000 0x100>;
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 0cc626e..fc1ed3f 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -10,6 +10,7 @@
*/
#include <linux/of_platform.h>
+#include <linux/platform_data/dwc3-exynos.h>
#include <linux/serial_core.h>
#include <asm/mach/arch.h>
@@ -34,6 +35,12 @@ static struct s5p_ehci_platdata smdk5250_ehci_pdata = {
.phy_exit = s5p_usb_phy_exit,
};
+static struct dwc3_exynos_data smdk5250_xhci_pdata = {
+ .phy_type = S5P_USB_PHY_DRD,
+ .phy_init = s5p_usb_phy_init,
+ .phy_exit = s5p_usb_phy_exit,
+};
+
/*
* The following lookup table is used to override device names when devices
* are registered from device tree. This is temporarily added to enable
@@ -73,6 +80,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
"exynos-ohci", &smdk5250_ohci_pdata),
OF_DEV_AUXDATA("samsung,exynos-ehci", 0x12110000,
"s5p-ehci", &smdk5250_ehci_pdata),
+ OF_DEV_AUXDATA("samsung,exynos-xhci", 0x12000000,
+ "exynos-dwc3", &smdk5250_xhci_pdata),
{},
};
--
1.7.0.4
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