[PATCH] ARM: zynq: dts: Add SCL & SDA GPIO entries for recovery
Michal Simek
monstr at monstr.eu
Tue May 16 04:13:02 PDT 2023
On 5/2/23 15:52, Michal Simek wrote:
> From: Chirag Parekh <chiragp at xilinx.com>
>
> Wire i2c pinmuxing gpio recovery for zc702.
>
> Signed-off-by: Chirag Parekh <chiragp at xilinx.com>
> Signed-off-by: Michal Simek <michal.simek at amd.com>
> ---
>
> arch/arm/boot/dts/zynq-zc702.dts | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/zynq-zc702.dts b/arch/arm/boot/dts/zynq-zc702.dts
> index d23201ba8cd7..6efdbca9d3ef 100644
> --- a/arch/arm/boot/dts/zynq-zc702.dts
> +++ b/arch/arm/boot/dts/zynq-zc702.dts
> @@ -5,6 +5,7 @@
> */
> /dts-v1/;
> #include "zynq-7000.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
>
> / {
> model = "Xilinx ZC702 board";
> @@ -106,8 +107,11 @@ &gpio0 {
> &i2c0 {
> status = "okay";
> clock-frequency = <400000>;
> - pinctrl-names = "default";
> + pinctrl-names = "default", "gpio";
> pinctrl-0 = <&pinctrl_i2c0_default>;
> + pinctrl-1 = <&pinctrl_i2c0_gpio>;
> + scl-gpios = <&gpio0 50 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + sda-gpios = <&gpio0 51 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
>
> i2c-mux at 74 {
> compatible = "nxp,pca9548";
> @@ -298,6 +302,19 @@ conf {
> };
> };
>
> + pinctrl_i2c0_gpio: i2c0-gpio {
> + mux {
> + groups = "gpio0_50_grp", "gpio0_51_grp";
> + function = "gpio0";
> + };
> +
> + conf {
> + groups = "gpio0_50_grp", "gpio0_51_grp";
> + slew-rate = <0>;
> + io-standard = <1>;
> + };
> + };
> +
> pinctrl_sdhci0_default: sdhci0-default {
> mux {
> groups = "sdio0_2_grp";
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/Versal ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal/Versal NET SoCs
TF-A maintainer - Xilinx ZynqMP/Versal/Versal NET SoCs
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