From: Adam Ford <aford173@xxxxxxxxx>
[ Upstream commit 5225ba9db112ec4ed67da5e4d8b72e618573955e ]
Early hardware did not support hardware handshaking on the UART, but
final production hardware did. When the hardware was updated the chip
select was changed to facilitate hardware handshaking on UART3. Fix the
ecspi2 pin mux to eliminate a pin conflict with UART3 and allow the
EEPROM to operate again.
Fixes: 4ce01ce36d77 ("arm64: dts: imx8mm-beacon: Enable RTS-CTS on UART3")
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
index 5667009aae13..674a0ab8a539 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
@@ -70,7 +70,7 @@ sound {
&ecspi2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_espi2>;
- cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+ cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
status = "okay";
eeprom@0 {
@@ -187,7 +187,7 @@ pinctrl_espi2: espi2grp {
MX8MM_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x82
MX8MM_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x82
MX8MM_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x82
- MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x41
+ MX8MM_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0x41
>;
};
--
2.39.0
