From: Nishanth Menon <nm@xxxxxx>
wkup_uart and main_uart1 on this platform is used by tifs and DM
firmwares. Describe them for completeness including the pinmux.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
[bb@xxxxxx: updated pinmux]
Signed-off-by: Bryan Brattlof <bb@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 40 +++++++++++++++++++++++--
1 file changed, 38 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index f6a67f072dca6..65caa5611d6d5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -17,7 +17,9 @@ / {
model = "Texas Instruments AM62A7 SK";
aliases {
+ serial0 = &wkup_uart0;
serial2 = &main_uart0;
+ serial3 = &main_uart1;
mmc1 = &sdhci1;
};
@@ -114,11 +116,38 @@ led-0 {
};
};
+&mcu_pmx0 {
+ wkup_uart0_pins_default: wkup-uart0-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_MCU_IOPAD(0x0024, PIN_INPUT, 0) /* (C9) WKUP_UART0_RXD */
+ AM62AX_MCU_IOPAD(0x0028, PIN_OUTPUT, 0) /* (E9) WKUP_UART0_TXD */
+ AM62AX_MCU_IOPAD(0x002c, PIN_INPUT, 0) /* (C10) WKUP_UART0_CTSn */
+ AM62AX_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (C8) WKUP_UART0_RTSn */
+ >;
+ };
+};
+
+/* WKUP UART0 is used for DM firmware logs */
+&wkup_uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_uart0_pins_default>;
+ status = "reserved";
+};
+
&main_pmx0 {
main_uart0_pins_default: main-uart0-pins-default {
pinctrl-single,pins = <
- AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */
- AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */
+ AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (E14) UART0_RXD */
+ AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (D15) UART0_TXD */
+ >;
+ };
+
+ main_uart1_pins_default: main-uart1-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x01e8, PIN_INPUT, 1) /* (C17) I2C1_SCL.UART1_RXD */
+ AM62AX_IOPAD(0x01ec, PIN_OUTPUT, 1) /* (E17) I2C1_SDA.UART1_TXD */
+ AM62AX_IOPAD(0x0194, PIN_INPUT, 2) /* (C19) MCASP0_AXR3.UART1_CTSn */
+ AM62AX_IOPAD(0x0198, PIN_OUTPUT, 2) /* (B19) MCASP0_AXR2.UART1_RTSn */
>;
};
@@ -254,6 +283,13 @@ &main_uart0 {
pinctrl-0 = <&main_uart0_pins_default>;
};
+/* Main UART1 is used for TIFS firmware logs */
+&main_uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart1_pins_default>;
+ status = "reserved";
+};
+
&usbss1 {
status = "okay";
};
base-commit: 891db0c48efb48c3af334006f9d7ea6a0aa49cb9
--
2.40.0
