Adding DWC3 device tree node for Exynos5250 along with the
device address and clock support needed for the controller.
Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx>
---
.../devicetree/bindings/usb/exynos-usb.txt | 14 +++++++++++
arch/arm/boot/dts/exynos5250.dtsi | 6 +++++
arch/arm/mach-exynos/Kconfig | 1 +
arch/arm/mach-exynos/clock-exynos5.c | 24 ++++++++++++++++++++
arch/arm/mach-exynos/include/mach/map.h | 1 +
arch/arm/mach-exynos/mach-exynos5-dt.c | 2 +
6 files changed, 48 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index 5ff3def1..a7e3eaa 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -38,3 +38,17 @@ Example:
reg = <0x12120000 0x100>;
interrupts = <0 71 0>;
};
+
+DWC3
+Required properties:
+ - compatible: should be "samsung,exynos-dwc3" for USB 3.0 DWC3 controller.
+ - reg: physical base address of the controller and length of memory mapped
+ region.
+ - interrupts: interrupt number to the cpu.
+
+Example:
+ usb@12000000 {
+ compatible = "samsung,exynos-dwc3";
+ reg = <0x12000000 0x10000>;
+ interrupts = <0 72 0>;
+ };
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index f18abe0..d349636 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -68,6 +68,12 @@
interrupts = <0 96 0>;
};
+ usb@12000000 {
+ compatible = "samsung,exynos-dwc3";
+ reg = <0x12000000 0x10000>;
+ interrupts = <0 72 0>;
+ };
+
rtc {
compatible = "samsung,s3c6410-rtc";
reg = <0x101E0000 0x100>;
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index bb3b09a..588814a 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -422,6 +422,7 @@ config MACH_EXYNOS5_DT
select ARM_AMBA
select SOC_EXYNOS5250
select USE_OF
+ select USB_ARCH_HAS_XHCI
help
Machine support for Samsung EXYNOS5 machine with device tree enabled.
Select this if a fdt blob is available for the EXYNOS5 SoC based board.
diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index a88e0d9..ee094ee 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -740,6 +740,11 @@ static struct clk exynos5_init_clocks_off[] = {
.enable = exynos5_clk_ip_fsys_ctrl ,
.ctrlbit = (1 << 18),
}, {
+ .name = "usbdrd30",
+ .parent = &exynos5_clk_aclk_200.clk,
+ .enable = exynos5_clk_ip_fsys_ctrl,
+ .ctrlbit = (1 << 19),
+ }, {
.name = "usbotg",
.enable = exynos5_clk_ip_fsys_ctrl,
.ctrlbit = (1 << 7),
@@ -1004,6 +1009,16 @@ struct clksrc_sources exynos5_clkset_group = {
.nr_sources = ARRAY_SIZE(exynos5_clkset_group_list),
};
+struct clk *exynos5_clkset_usbdrd30_list[] = {
+ [0] = &exynos5_clk_mout_mpll.clk,
+ [1] = &exynos5_clk_mout_cpll.clk,
+};
+
+struct clksrc_sources exynos5_clkset_usbdrd30 = {
+ .sources = exynos5_clkset_usbdrd30_list,
+ .nr_sources = ARRAY_SIZE(exynos5_clkset_usbdrd30_list),
+};
+
/* Possible clock sources for aclk_266_gscl_sub Mux */
static struct clk *clk_src_gscl_266_list[] = {
[0] = &clk_ext_xtal_mux,
@@ -1288,6 +1303,15 @@ static struct clksrc_clk exynos5_clksrcs[] = {
.parent = &exynos5_clk_mout_cpll.clk,
},
.reg_div = { .reg = EXYNOS5_CLKDIV_GEN, .shift = 4, .size = 3 },
+ }, {
+ .clk = {
+ .name = "sclk_usbdrd30",
+ .enable = exynos5_clksrc_mask_fsys_ctrl,
+ .ctrlbit = (1 << 28),
+ },
+ .sources = &exynos5_clkset_usbdrd30,
+ .reg_src = { .reg = EXYNOS5_CLKSRC_FSYS, .shift = 28, .size = 1 },
+ .reg_div = { .reg = EXYNOS5_CLKDIV_FSYS0, .shift = 24, .size = 4 },
},
};
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 471ffaf..064ca1c 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -197,6 +197,7 @@
#define EXYNOS4_PA_EHCI 0x12580000
#define EXYNOS4_PA_OHCI 0x12590000
#define EXYNOS4_PA_HSPHY 0x125B0000
+#define EXYNOS5_PA_DRD 0x12000000
#define EXYNOS5_PA_EHCI 0x12110000
#define EXYNOS5_PA_OHCI 0x12120000
#define EXYNOS4_PA_MFC 0x13400000
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index c03f3dd..3032222 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -90,6 +90,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
"s5p-ehci", NULL),
OF_DEV_AUXDATA("samsung,exynos-ohci", EXYNOS5_PA_OHCI,
"exynos-ohci", NULL),
+ OF_DEV_AUXDATA("samsung,exynos-dwc3", EXYNOS5_PA_DRD,
+ "exynos-dwc3", NULL),
{},
};
--
1.7.6.5
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