arm64: dts: ti: k3-am62a7-sk: Describe main_uart1 and wkup_uart

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@ti.com>
[bb@ti.com: updated pinmux and commit subject]
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230425221708.549675-1-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index f6a67f072dca678067641d268f29957138503a32..65caa5611d6d56b5f5c392a74df2f86fedfcb5f5 100644 (file)
--- 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 @@
        };
 };
 
+&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 @@
        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";
 };