CC: Doug Anderson On Thu, Dec 13, 2012 at 10:17 PM, Vivek Gautam <gautam.vivek@xxxxxxxxxxx> wrote: > 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> > --- > Changes from v2: > - Changed the compatible string to chip specific(samsung,exynos5250), > since dwc3-exynos is being used from exynso5250 onwards. > - Based on changes for USB 2.0: > https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-December/024413.html > > Changes from v1: > - Changed the device node name from 'dwc3' to 'usb@12000000'. > - Added the documentation for device tree bindings for dwc3 controller. > > > .../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 f66fcdd..d660410 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,exynos5250-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,exynos5250-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 75510d1..001a31b 100644 > --- a/arch/arm/boot/dts/exynos5250.dtsi > +++ b/arch/arm/boot/dts/exynos5250.dtsi > @@ -299,6 +299,12 @@ > rx-dma-channel = <&pdma0 11>; /* preliminary */ > }; > > + usb@12000000 { > + compatible = "samsung,exynos5250-dwc3"; > + reg = <0x12000000 0x10000>; > + interrupts = <0 72 0>; > + }; > + > usb@12110000 { > compatible = "samsung,exynos4210-ehci"; > reg = <0x12110000 0x100>; > diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig > index 91d5b6f..09f9587 100644 > --- a/arch/arm/mach-exynos/Kconfig > +++ b/arch/arm/mach-exynos/Kconfig > @@ -426,6 +426,7 @@ config MACH_EXYNOS5_DT > depends on ARCH_EXYNOS5 > select ARM_AMBA > 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 5c63bc7..f2214a0 100644 > --- a/arch/arm/mach-exynos/clock-exynos5.c > +++ b/arch/arm/mach-exynos/clock-exynos5.c > @@ -768,6 +768,11 @@ 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), > @@ -1121,6 +1126,16 @@ static 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, > @@ -1415,6 +1430,15 @@ 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 4bf6fd9..74470ca 100644 > --- a/arch/arm/mach-exynos/include/mach/map.h > +++ b/arch/arm/mach-exynos/include/mach/map.h > @@ -201,6 +201,7 @@ > #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 07aa586..26dd6c8 100644 > --- a/arch/arm/mach-exynos/mach-exynos5-dt.c > +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c > @@ -114,6 +114,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = { > "s5p-ehci", NULL), > OF_DEV_AUXDATA("samsung,exynos4210-ohci", EXYNOS5_PA_OHCI, > "exynos-ohci", NULL), > + OF_DEV_AUXDATA("samsung,exynos5250-dwc3", EXYNOS5_PA_DRD, > + "exynos-dwc3", NULL), > {}, > }; > > -- > 1.7.6.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Thanks & Regards Vivek -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |