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Message-ID: <CAFp+6iHoS4XJWHNrsyVsQS4bYZs1PUNEGsRr=EqAS7kpm2XGMQ@mail.gmail.com>
Date: Wed, 19 Dec 2012 19:20:40 +0530
From: Vivek Gautam <gautamvivek1987@...il.com>
To: linux-samsung-soc@...r.kernel.org
Cc: dianders@...omium.org, linux-arm-kernel@...ts.infradead.org,
devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org, kgene.kim@...sung.com,
Grant Likely <grant.likely@...retlab.ca>,
Vivek Gautam <gautam.vivek@...sung.com>
Subject: Re: [PATCH v3 1/2] ARM: Exynos5250: Enabling ehci-s5p driver
CC: Doug Anderson
On Sat, Dec 15, 2012 at 12:53 PM, Grant Likely
<grant.likely@...retlab.ca> wrote:
> On Thu, 13 Dec 2012 22:06:01 +0530, Vivek Gautam <gautam.vivek@...sung.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@...sung.com>
>> Acked-by: Jingoo Han <jg1.han@...sung.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@...10000 {
>> + 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@...70000 {
>> status = "disabled";
>> };
>> +
>> + usb@...10000 {
>> + 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@...10000 {
>> + 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@...retlab.ca>
> --
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--
Thanks & Regards
Vivek
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