[PATCH v3] arm64: dts: ti: k3-am62a7-sk: Describe main_uart1 and wkup_uart

[PATCH v3] arm64: dts: ti: k3-am62a7-sk: Describe main_uart1 and wkup_uart

[Bryan Brattlof]

From: Nishanth Menon <nm@ti.com>

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>
---

Changes from v2: [1]
- Included the patch version to the $subject

Changes from v1: [0]
- Updated $subject to align with previous commits

[1] https://lore.kernel.org/lkml/20230425214311.546191-1-bb@ti.com/
[0] https://lore.kernel.org/linux-devicetree/20230424183355.68360-1-bb@ti.com/

 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

Re: [PATCH v3] arm64: dts: ti: k3-am62a7-sk: Describe main_uart1 and wkup_uart

[Vignesh Raghavendra]

Hi Bryan Brattlof,

On Tue, 25 Apr 2023 17:17:08 -0500, Bryan Brattlof wrote:
> wkup_uart and main_uart1 on this platform is used by tifs and DM
> firmwares. Describe them for completeness including the pinmux.
> 
> 

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/1] arm64: dts: ti: k3-am62a7-sk: Describe main_uart1 and wkup_uart
      commit: bb73613b1670681afdfe0707522ee834e43df484

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh