[PATCH 05/12] arm64: dts: ti: k3-j7200: Enable UART nodes at the board level

[Andrew Davis]

UART nodes defined in the top-level J7200 SoC dtsi files are incomplete
and may not be functional unless they are extended with pinmux
information.

As the pinmux is only known at the board integration level, these
nodes should only be enabled when provided with this information.

Disable the UART nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd at ti.com>
---
 .../dts/ti/k3-j7200-common-proc-board.dts     | 46 +++++--------------
 arch/arm64/boot/dts/ti/k3-j7200-main.dtsi     | 10 ++++
 .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi      |  2 +
 3 files changed, 23 insertions(+), 35 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index 7e8552fd2b6ae..bc3d1831f5cda 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -154,51 +154,27 @@ &wkup_uart0 {
 	status = "reserved";
 };
 
+&mcu_uart0 {
+	status = "okay";
+	/* Default pinmux */
+};
+
 &main_uart0 {
+	status = "okay";
 	/* Shared with ATF on this platform */
 	power-domains = <&k3_pds 146 TI_SCI_PD_SHARED>;
 };
 
+&main_uart1 {
+	status = "okay";
+	/* Default pinmux */
+};
+
 &main_uart2 {
 	/* MAIN UART 2 is used by R5F firmware */
 	status = "reserved";
 };
 
-&main_uart3 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
-&main_uart4 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
-&main_uart5 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
-&main_uart6 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
-&main_uart7 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
-&main_uart8 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
-&main_uart9 {
-	/* UART not brought out */
-	status = "disabled";
-};
-
 &main_gpio2 {
 	status = "disabled";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index 80a57916bcb3e..f9aefd3dbdcaf 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -319,6 +319,7 @@ main_uart0: serial at 2800000 {
 		power-domains = <&k3_pds 146 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 146 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart1: serial at 2810000 {
@@ -330,6 +331,7 @@ main_uart1: serial at 2810000 {
 		power-domains = <&k3_pds 278 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 278 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart2: serial at 2820000 {
@@ -341,6 +343,7 @@ main_uart2: serial at 2820000 {
 		power-domains = <&k3_pds 279 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 279 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart3: serial at 2830000 {
@@ -352,6 +355,7 @@ main_uart3: serial at 2830000 {
 		power-domains = <&k3_pds 280 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 280 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart4: serial at 2840000 {
@@ -363,6 +367,7 @@ main_uart4: serial at 2840000 {
 		power-domains = <&k3_pds 281 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 281 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart5: serial at 2850000 {
@@ -374,6 +379,7 @@ main_uart5: serial at 2850000 {
 		power-domains = <&k3_pds 282 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 282 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart6: serial at 2860000 {
@@ -385,6 +391,7 @@ main_uart6: serial at 2860000 {
 		power-domains = <&k3_pds 283 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 283 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart7: serial at 2870000 {
@@ -396,6 +403,7 @@ main_uart7: serial at 2870000 {
 		power-domains = <&k3_pds 284 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 284 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart8: serial at 2880000 {
@@ -407,6 +415,7 @@ main_uart8: serial at 2880000 {
 		power-domains = <&k3_pds 285 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 285 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_uart9: serial at 2890000 {
@@ -418,6 +427,7 @@ main_uart9: serial at 2890000 {
 		power-domains = <&k3_pds 286 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 286 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	main_i2c0: i2c at 2000000 {
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index e5be78a58682d..7c205b347f813 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -79,6 +79,7 @@ wkup_uart0: serial at 42300000 {
 		power-domains = <&k3_pds 287 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 287 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	mcu_uart0: serial at 40a00000 {
@@ -90,6 +91,7 @@ mcu_uart0: serial at 40a00000 {
 		power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 149 2>;
 		clock-names = "fclk";
+		status = "disabled";
 	};
 
 	wkup_gpio_intr: interrupt-controller at 42200000 {
-- 
2.37.3