| Message ID | 20190222101948.848-1-linux.amoon@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: exynos: Add pin configuration for read strobe for Odroid XU3/XU4 eMMC | expand |
Hi Anand, On 2019-02-22 11:19, Anand Moon wrote: > Add Read Strobe RDQS pin configuration for eMMC to support higher data rate read/write. > > Signed-off-by: Anand Moon <linux.amoon@gmail.com> > --- > arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 6 ++++++ > arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 2 +- > 2 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi > index b82af7c89654..4fb3865e082a 100644 > --- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi > +++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi > @@ -206,6 +206,12 @@ > samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>; > }; > > + sd0_rdqs: sd0-rdqs { > + samsung,pins = "gpc0-7"; > + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; > + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; > + }; > + The above lines are not needed. There is already a sd0_rclk node with exactly the same configuration just above your change. > sd1_clk: sd1-clk { > samsung,pins = "gpc1-0"; > samsung,pin-function = <EXYNOS_PIN_FUNC_2>; > diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi > index b299e541cac0..d41397748ed2 100644 > --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi > +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi > @@ -411,7 +411,7 @@ > 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 &sd0_cd &sd0_rclk>; > + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_rdqs &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd &sd0_rclk>; > bus-width = <8>; > cap-mmc-highspeed; > mmc-hs200-1_8v; Best regards
Hi Marek, On Fri, 22 Feb 2019 at 15:59, Marek Szyprowski <m.szyprowski@samsung.com> wrote: > > Hi Anand, > > On 2019-02-22 11:19, Anand Moon wrote: > > Add Read Strobe RDQS pin configuration for eMMC to support higher data rate read/write. > > > > Signed-off-by: Anand Moon <linux.amoon@gmail.com> > > --- > > arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 6 ++++++ > > arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 2 +- > > 2 files changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi > > index b82af7c89654..4fb3865e082a 100644 > > --- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi > > +++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi > > @@ -206,6 +206,12 @@ > > samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>; > > }; > > > > + sd0_rdqs: sd0-rdqs { > > + samsung,pins = "gpc0-7"; > > + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; > > + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; > > + }; > > + > > The above lines are not needed. There is already a sd0_rclk node with > exactly the same configuration just above your change. > Sorry once again, I failed to look closely., sorry for the noise. Best Regards -Anand > > sd1_clk: sd1-clk { > > samsung,pins = "gpc1-0"; > > samsung,pin-function = <EXYNOS_PIN_FUNC_2>; > > diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi > > index b299e541cac0..d41397748ed2 100644 > > --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi > > +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi > > @@ -411,7 +411,7 @@ > > 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 &sd0_cd &sd0_rclk>; > > + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_rdqs &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd &sd0_rclk>; > > bus-width = <8>; > > cap-mmc-highspeed; > > mmc-hs200-1_8v; > > Best regards > -- > Marek Szyprowski, PhD > Samsung R&D Institute Poland >
diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi index b82af7c89654..4fb3865e082a 100644 --- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi +++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi @@ -206,6 +206,12 @@ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>; }; + sd0_rdqs: sd0-rdqs { + samsung,pins = "gpc0-7"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + sd1_clk: sd1-clk { samsung,pins = "gpc1-0"; samsung,pin-function = <EXYNOS_PIN_FUNC_2>; diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index b299e541cac0..d41397748ed2 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -411,7 +411,7 @@ 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 &sd0_cd &sd0_rclk>; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_rdqs &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd &sd0_rclk>; bus-width = <8>; cap-mmc-highspeed; mmc-hs200-1_8v;
Add Read Strobe RDQS pin configuration for eMMC to support higher data rate read/write. Signed-off-by: Anand Moon <linux.amoon@gmail.com> --- arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 6 ++++++ arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-)