From dacf4705cee54eef4406a886a0a50a6f445969f8 Mon Sep 17 00:00:00 2001 From: Andrew Davis Date: Mon, 17 Oct 2022 14:25:23 -0500 Subject: [PATCH] arm64: dts: ti: k3-am64: Enable UART nodes at the board level UART nodes defined in the top-level AM64x SoC dtsi files are incomplete and will 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 Signed-off-by: Nishanth Menon Reviewed-by: Bryan Brattlof Acked-by: Vignesh Raghavendra Link: https://lore.kernel.org/r/20221017192532.23825-2-afd@ti.com --- arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 7 ++++++ arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi | 2 ++ arch/arm64/boot/dts/ti/k3-am642-evm.dts | 29 +----------------------- arch/arm64/boot/dts/ti/k3-am642-sk.dts | 29 +----------------------- 4 files changed, 11 insertions(+), 56 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi index d6aa23681bbe5..a115c668d0010 100644 --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi @@ -237,6 +237,7 @@ power-domains = <&k3_pds 146 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 146 0>; clock-names = "fclk"; + status = "disabled"; }; main_uart1: serial@2810000 { @@ -248,6 +249,7 @@ power-domains = <&k3_pds 152 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 152 0>; clock-names = "fclk"; + status = "disabled"; }; main_uart2: serial@2820000 { @@ -259,6 +261,7 @@ power-domains = <&k3_pds 153 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 153 0>; clock-names = "fclk"; + status = "disabled"; }; main_uart3: serial@2830000 { @@ -270,6 +273,7 @@ power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 154 0>; clock-names = "fclk"; + status = "disabled"; }; main_uart4: serial@2840000 { @@ -281,6 +285,7 @@ power-domains = <&k3_pds 155 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 155 0>; clock-names = "fclk"; + status = "disabled"; }; main_uart5: serial@2850000 { @@ -292,6 +297,7 @@ power-domains = <&k3_pds 156 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 156 0>; clock-names = "fclk"; + status = "disabled"; }; main_uart6: serial@2860000 { @@ -303,6 +309,7 @@ power-domains = <&k3_pds 158 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 158 0>; clock-names = "fclk"; + status = "disabled"; }; main_i2c0: i2c@20000000 { diff --git a/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi index 02d4285acbb8d..1181ad0176261 100644 --- a/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi @@ -14,6 +14,7 @@ power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 149 0>; clock-names = "fclk"; + status = "disabled"; }; mcu_uart1: serial@4a10000 { @@ -24,6 +25,7 @@ power-domains = <&k3_pds 160 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 160 0>; clock-names = "fclk"; + status = "disabled"; }; mcu_i2c0: i2c@4900000 { diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 5cf913860f800..78f246077ca99 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -325,6 +325,7 @@ }; &main_uart0 { + status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&main_uart0_pins_default>; }; @@ -334,34 +335,6 @@ status = "reserved"; }; -&main_uart2 { - status = "disabled"; -}; - -&main_uart3 { - status = "disabled"; -}; - -&main_uart4 { - status = "disabled"; -}; - -&main_uart5 { - status = "disabled"; -}; - -&main_uart6 { - status = "disabled"; -}; - -&mcu_uart0 { - status = "disabled"; -}; - -&mcu_uart1 { - status = "disabled"; -}; - &main_i2c1 { pinctrl-names = "default"; pinctrl-0 = <&main_i2c1_pins_default>; diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts index 738d0cf6c40ac..8423295150fc4 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts @@ -338,15 +338,8 @@ }; }; -&mcu_uart0 { - status = "disabled"; -}; - -&mcu_uart1 { - status = "disabled"; -}; - &main_uart0 { + status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&main_uart0_pins_default>; }; @@ -356,26 +349,6 @@ status = "reserved"; }; -&main_uart2 { - status = "disabled"; -}; - -&main_uart3 { - status = "disabled"; -}; - -&main_uart4 { - status = "disabled"; -}; - -&main_uart5 { - status = "disabled"; -}; - -&main_uart6 { - status = "disabled"; -}; - &mcu_i2c0 { status = "disabled"; }; -- 2.30.2