wkup_uart and main_uart1 on this platform is used by TIFS and DM
firmwares. Describe pinmux and add aliases for completeness.
Signed-off-by: Nitin Yadav <n-yadav@xxxxxx>
---
.../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 976f8303c84f..e29ea8ae2177 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -12,7 +12,9 @@
/ {
aliases {
+ serial0 = &wkup_uart0;
serial2 = &main_uart0;
+ serial3 = &main_uart1;
mmc0 = &sdhci0;
mmc1 = &sdhci1;
mmc2 = &sdhci2;
@@ -127,6 +129,15 @@ AM62X_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14/E11) UART0_TXD */
>;
};
+ main_uart1_pins_default: main-uart1-pins-default {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x194, PIN_INPUT, 2) /* (B19) MCASP0_AXR3.UART1_CTSn */
+ AM62X_IOPAD(0x198, PIN_OUTPUT, 2) /* (A19) MCASP0_AXR2.UART1_RTSn */
+ AM62X_IOPAD(0x1ac, PIN_INPUT, 2) /* (E19) MCASP0_AFSR.UART1_RXD */
+ AM62X_IOPAD(0x1b0, PIN_OUTPUT, 2) /* (A20) MCAS/mP0_ACLKR.UART1_TXD */
+ >;
+ };
+
main_i2c0_pins_default: main-i2c0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16/E12) I2C0_SCL */
@@ -221,8 +232,21 @@ AM62X_IOPAD(0x084, PIN_INPUT, 2) /* (L23) GPMC0_ADVN_ALE.MCASP1_AXR2 */
};
};
+&mcu_pmx0 {
+ wkup_uart0_pins_default: wkup-uart0-pins-default {
+ pinctrl-single,pins = <
+ AM62X_MCU_IOPAD(0x02c, PIN_INPUT, 0) /* (C6) WKUP_UART0_CTSn */
+ AM62X_MCU_IOPAD(0x030, PIN_OUTPUT, 0) /* (A4) WKUP_UART0_RTSn */
+ AM62X_MCU_IOPAD(0x024, PIN_INPUT, 0) /* (B4) WKUP_UART0_RXD */
+ AM62X_MCU_IOPAD(0x028, PIN_OUTPUT, 0) /* (C5) WKUP_UART0_TXD */
+ >;
+ };
+};
+
&wkup_uart0 {
/* WKUP UART0 is used by DM firmware */
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_uart0_pins_default>;
status = "reserved";
};
@@ -234,6 +258,8 @@ &main_uart0 {
&main_uart1 {
/* Main UART1 is used by TIFS firmware */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart1_pins_default>;
status = "reserved";
};
--
2.25.1
