On 5/2/23 15:52, Michal Simek wrote:
From: Chirag Parekh <chiragp@xxxxxxxxxx>
Wire i2c pinmuxing gpio recovery for zc702.
Signed-off-by: Chirag Parekh <chiragp@xxxxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxx>
---
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@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
