[PATCH v7] ARM: dts: Add HS400 support for exynos5420 and exynos5800

[Alim Akhtar]

Gentle Ping !!


On Wed, Mar 18, 2015 at 4:50 PM, Alim Akhtar <alim.akhtar at samsung.com> wrote:
> From: Seungwon Jeon <tgih.jun at samsung.com>
>
> HS400 timing values are added for SMDK5420, exynos5420-peach-pit
> and exynos5800-peach-pi boards.
> This also adds RCLK GPIO line, this gpio should be in pull-down
> state.
> This also enables HS400 on peach-pi and this updates the clock frequency
> to 800MHz to be set as input clock to controller.
>
> Signed-off-by: Seungwon Jeon <tgih.jun at samsung.com>
> Signed-off-by: Alim Akhtar <alim.akhtar at samsung.com>
> [Alim: addressed review comments]
> Acked-by: Jaehoon Chung <jh80.chung at samsung.com>
> ---
> Changes in V7:
>          Add back bus1 pin, which was removed during rebase in v6
>          as rightly pointed out by Javier[1].
>
> Changes in V6:
>         Rebased on kukjin's for-next branch[0]
>         (commit: 77105c8 Merge branch 'v4.0-samsung-fixes-2' into for-next)
>
> [0]: git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git
> [1]: http://www.spinics.net/lists/arm-kernel/msg406618.html
>
>  arch/arm/boot/dts/exynos5420-peach-pit.dts | 4 +++-
>  arch/arm/boot/dts/exynos5420-pinctrl.dtsi  | 7 +++++++
>  arch/arm/boot/dts/exynos5420-smdk5420.dts  | 5 ++++-
>  arch/arm/boot/dts/exynos5800-peach-pi.dts  | 7 +++++--
>  4 files changed, 19 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> index 3f4e2fe..0788d08 100644
> --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
> +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> @@ -699,8 +699,10 @@
>         samsung,dw-mshc-ciu-div = <3>;
>         samsung,dw-mshc-sdr-timing = <0 4>;
>         samsung,dw-mshc-ddr-timing = <0 2>;
> +       samsung,dw-mshc-hs400-timing = <0 2>;
> +       samsung,read-strobe-delay = <90>;
>         pinctrl-names = "default";
> -       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>;
> +       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_rclk>;
>         bus-width = <8>;
>  };
>
> diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
> index ba686e4..8b15316 100644
> --- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
> @@ -201,6 +201,13 @@
>                         samsung,pin-drv = <3>;
>                 };
>
> +               sd0_rclk: sd0-rclk {
> +                       samsung,pins = "gpc0-7";
> +                       samsung,pin-function = <2>;
> +                       samsung,pin-pud = <1>;
> +                       samsung,pin-drv = <3>;
> +               };
> +
>                 sd1_cmd: sd1-cmd {
>                         samsung,pins = "gpc1-1";
>                         samsung,pin-function = <2>;
> diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
> index 7a56852..9103f23 100644
> --- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
> +++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
> @@ -80,8 +80,11 @@
>                 samsung,dw-mshc-ciu-div = <3>;
>                 samsung,dw-mshc-sdr-timing = <0 4>;
>                 samsung,dw-mshc-ddr-timing = <0 2>;
> +               samsung,dw-mshc-hs400-timing = <0 2>;
> +               samsung,read-strobe-delay = <90>;
>                 pinctrl-names = "default";
> -               pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>;
> +               pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8
> +                            &sd0_rclk>;
>                 bus-width = <8>;
>                 cap-mmc-highspeed;
>         };
> diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> index c833bac..412f41d 100644
> --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
> +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> @@ -654,15 +654,18 @@
>         num-slots = <1>;
>         broken-cd;
>         mmc-hs200-1_8v;
> +       mmc-hs400-1_8v;
>         cap-mmc-highspeed;
>         non-removable;
>         card-detect-delay = <200>;
> -       clock-frequency = <400000000>;
> +       clock-frequency = <800000000>;
>         samsung,dw-mshc-ciu-div = <3>;
>         samsung,dw-mshc-sdr-timing = <0 4>;
>         samsung,dw-mshc-ddr-timing = <0 2>;
> +       samsung,dw-mshc-hs400-timing = <0 2>;
> +       samsung,read-strobe-delay = <90>;
>         pinctrl-names = "default";
> -       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>;
> +       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_rclk>;
>         bus-width = <8>;
>  };
>
> --
> 1.9.1
>



-- 
Regards,
Alim