[PATCH] arm64: zynqmp: Add pinctrl emmc description to SM-K26

[PATCH] arm64: zynqmp: Add pinctrl emmc description to SM-K26

[Michal Simek]

Production SOM has emmc on it and make sense to describe pin description to
be able use EMMC if it is not configured via psu_init.
(Still some regs are not handled but this is one step in that direction)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

 arch/arm/dts/zynqmp-sm-k26-revA.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/dts/zynqmp-sm-k26-revA.dts b/arch/arm/dts/zynqmp-sm-k26-revA.dts
index b437d713ca8f..e904cd8ea093 100644
--- a/arch/arm/dts/zynqmp-sm-k26-revA.dts
+++ b/arch/arm/dts/zynqmp-sm-k26-revA.dts
@@ -14,6 +14,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/phy/phy.h>
+#include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
 
 / {
 	model = "ZynqMP SM-K26 Rev1/B/A";
@@ -92,6 +93,23 @@
 	status = "okay";
 };
 
+&pinctrl0 {
+	status = "okay";
+	pinctrl_sdhci0_default: sdhci0-default {
+		conf {
+			groups = "sdio0_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			bias-disable;
+		};
+
+		mux {
+			groups = "sdio0_0_grp";
+			function = "sdio0";
+		};
+	};
+};
+
 &qspi { /* MIO 0-5 - U143 */
 	status = "okay";
 	flash@0 { /* MT25QU512A */
@@ -185,6 +203,8 @@
 
 &sdhci0 { /* MIO13-23 - 16GB emmc MTFC16GAPALBH-IT - U133A */
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdhci0_default>;
 	non-removable;
 	disable-wp;
 	bus-width = <8>;
-- 
2.35.1

Re: [PATCH] arm64: zynqmp: Add pinctrl emmc description to SM-K26

[Michal Simek]

po 14. 3. 2022 v 15:26 odesílatel Michal Simek <michal.simek@xilinx.com> napsal:
>
> Production SOM has emmc on it and make sense to describe pin description to
> be able use EMMC if it is not configured via psu_init.
> (Still some regs are not handled but this is one step in that direction)
>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> ---
>
>  arch/arm/dts/zynqmp-sm-k26-revA.dts | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/arch/arm/dts/zynqmp-sm-k26-revA.dts b/arch/arm/dts/zynqmp-sm-k26-revA.dts
> index b437d713ca8f..e904cd8ea093 100644
> --- a/arch/arm/dts/zynqmp-sm-k26-revA.dts
> +++ b/arch/arm/dts/zynqmp-sm-k26-revA.dts
> @@ -14,6 +14,7 @@
>  #include <dt-bindings/input/input.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/phy/phy.h>
> +#include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
>
>  / {
>         model = "ZynqMP SM-K26 Rev1/B/A";
> @@ -92,6 +93,23 @@
>         status = "okay";
>  };
>
> +&pinctrl0 {
> +       status = "okay";
> +       pinctrl_sdhci0_default: sdhci0-default {
> +               conf {
> +                       groups = "sdio0_0_grp";
> +                       slew-rate = <SLEW_RATE_SLOW>;
> +                       power-source = <IO_STANDARD_LVCMOS18>;
> +                       bias-disable;
> +               };
> +
> +               mux {
> +                       groups = "sdio0_0_grp";
> +                       function = "sdio0";
> +               };
> +       };
> +};
> +
>  &qspi { /* MIO 0-5 - U143 */
>         status = "okay";
>         flash@0 { /* MT25QU512A */
> @@ -185,6 +203,8 @@
>
>  &sdhci0 { /* MIO13-23 - 16GB emmc MTFC16GAPALBH-IT - U133A */
>         status = "okay";
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_sdhci0_default>;
>         non-removable;
>         disable-wp;
>         bus-width = <8>;
> --
> 2.35.1
>

Applied.
M

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs