From: Bhavya Kapoor <b-kapoor@ti.com>
Date: Tue, 27 Aug 2024 10:56:44 +0000 (+0530)
Subject: arm64: dts: ti: k3-j722s-evm: Describe main_uart5
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=010b035ab4d7a1c4fd13936f42eef857ddbeede7;p=linux.git

arm64: dts: ti: k3-j722s-evm: Describe main_uart5

System firmware uses main_uart5 in J722S EVM for trace data.
Thus, describe it in device tree for completeness,
adding the pinmux and mark it as reserved.

Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Link: https://lore.kernel.org/r/20240827105644.575862-3-b-kapoor@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
---

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index dd3b5f7039d7..ee2bd7d26b9e 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -20,6 +20,7 @@
 	aliases {
 		serial0 = &wkup_uart0;
 		serial2 = &main_uart0;
+		serial3 = &main_uart5;
 		mmc0 = &sdhci0;
 		mmc1 = &sdhci1;
 	};
@@ -182,6 +183,13 @@
 		bootph-all;
 	};
 
+	main_uart5_pins_default: main-uart5-default-pins {
+		pinctrl-single,pins = <
+			J722S_IOPAD(0x0108, PIN_INPUT, 3)       /* (J27) UART5_RXD */
+			J722S_IOPAD(0x010c, PIN_OUTPUT, 3)      /* (H27) UART5_TXD */
+		>;
+	};
+
 	vdd_sd_dv_pins_default: vdd-sd-dv-default-pins {
 		pinctrl-single,pins = <
 			J722S_IOPAD(0x0120, PIN_INPUT, 7) /* (F27) MMC2_CMD.GPIO0_70 */
@@ -301,6 +309,13 @@
 	bootph-all;
 };
 
+&main_uart5 {
+	/* MAIN UART 5 is used by System firmware */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_uart5_pins_default>;
+	status = "reserved";
+};
+
 &mcu_pmx0 {
 
 	wkup_uart0_pins_default: wkup-uart0-default-pins {