[PATCH v3 1/2] ARM: Exynos5250: Enabling ehci-s5p driver

Vivek Gautam
2012-12-21T08:16:28Z

Hi all,

On Wed, Dec 19, 2012 at 7:20 PM, Vivek Gautam <gautamvivek1987@gmail.com> wrote:
> CC: Doug Anderson
>
>
> On Sat, Dec 15, 2012 at 12:53 PM, Grant Likely
> <grant.likely@secretlab.ca> wrote:
>> On Thu, 13 Dec 2012 22:06:01 +0530, Vivek Gautam <gautam.vivek@samsung.com> wrote:
>>> Adding EHCI device tree node for Exynos5250 along with
>>> the device base adress and gpio line for vbus.
>>>
>>> Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
>>> Acked-by: Jingoo Han <jg1.han@samsung.com>
>>> ---
>>> .../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..e8bbb47
>>> --- /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,exynos4210-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:
>>> +
>>> + usb at 12110000 {
>>> + compatible = "samsung,exynos4210-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 711b55f..f990086 100644
>>> --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
>>> +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
>>> @@ -218,4 +218,8 @@
>>> i2s_2: i2s at 12D70000 {
>>> status = "disabled";
>>> };
>>> +
>>> + usb at 12110000 {
>>> + 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 581e57a..584bb9a 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 at 12110000 {
>>> + compatible = "samsung,exynos4210-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 cbb2852..b2c662f 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_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 462e5ac..b3b9af1 100644
>>> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
>>> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
>>> @@ -110,6 +110,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
>>> "samsung-i2s.1", NULL),
>>> OF_DEV_AUXDATA("samsung,samsung-i2s", 0x12D70000,
>>> "samsung-i2s.2", NULL),
>>> + OF_DEV_AUXDATA("samsung,exynos4210-ehci", EXYNOS5_PA_EHCI,
>>> + "s5p-ehci", NULL),
>>
>> I'm assuming the above change is temporary. What is left to be done to
>> drop the auxdata in theses two patches?
>>
>> Otherwise the patch looks fine.
>>
>> Acked-by: Grant Likely <grant.likely@secretlab.ca>

Any more thought about this patch?
Or does this change seems fine?

>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to majordomo at vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at http://www.tux.org/lkml/
>
>
>
> --
> Thanks & Regards
> Vivek

--
Thanks & Regards
Vivek