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Date: Thu, 1 Jun 2023 13:31:46 -0500
From: Nishanth Menon <nm@...com>
To: Conor Dooley <conor+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Tero Kristo <kristo@...nel.org>,
Vignesh Raghavendra <vigneshr@...com>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, Nishanth Menon <nm@...com>,
Udit Kumar <u-kumar1@...com>,
Neha Malcom Francis <n-francis@...com>
Subject: [PATCH 4/9] arm64: dts: ti: j721e-common-proc-board: Add uart pinmux
Explicitly define the pinmux rather than depend on bootloader configured
pinmux for the platform.
Signed-off-by: Nishanth Menon <nm@...com>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 62 +++++++++++++++++--
1 file changed, 58 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 5222ec03022f..25111c86511f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -174,6 +174,36 @@ dp_connector_in: endpoint {
};
&main_pmx0 {
+ main_uart0_pins_default: main-uart0-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x1d4, PIN_INPUT, 1) /* (Y3) SPI1_CS0.UART0_CTSn */
+ J721E_IOPAD(0x1c0, PIN_OUTPUT, 1) /* (AA2) SPI0_CS0.UART0_RTSn */
+ J721E_IOPAD(0x1e8, PIN_INPUT, 0) /* (AB2) UART0_RXD */
+ J721E_IOPAD(0x1ec, PIN_OUTPUT, 0) /* (AB3) UART0_TXD */
+ >;
+ };
+
+ main_uart1_pins_default: main-uart1-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x1f8, PIN_INPUT, 0) /* (AA4) UART1_RXD */
+ J721E_IOPAD(0x1fc, PIN_OUTPUT, 0) /* (AB4) UART1_TXD */
+ >;
+ };
+
+ main_uart2_pins_default: main-uart2-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x1dc, PIN_INPUT, 3) /* (Y1) SPI1_CLK.UART2_RXD */
+ J721E_IOPAD(0x1e0, PIN_OUTPUT, 3) /* (Y5) SPI1_D0.UART2_TXD */
+ >;
+ };
+
+ main_uart4_pins_default: main-uart4-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x190, PIN_INPUT, 1) /* (W23) RGMII6_TD3.UART4_RXD */
+ J721E_IOPAD(0x194, PIN_OUTPUT, 1) /* (W28) RGMII6_TD2.UART4_TXD */
+ >;
+ };
+
sw10_button_pins_default: sw10-button-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0x0, PIN_INPUT, 7) /* (AC18) EXTINTn.GPIO0_0 */
@@ -295,6 +325,22 @@ J721E_IOPAD(0x200, PIN_INPUT, 7) /* (AC4) UART1_CTSn.GPIO0_127 */
};
&wkup_pmx0 {
+ wkup_uart0_pins_default: wkup-uart0-pins-default {
+ pinctrl-single,pins = <
+ J721E_WKUP_IOPAD(0xa0, PIN_INPUT, 0) /* (J29) WKUP_UART0_RXD */
+ J721E_WKUP_IOPAD(0xa4, PIN_OUTPUT, 0) /* (J28) WKUP_UART0_TXD */
+ >;
+ };
+
+ mcu_uart0_pins_default: mcu-uart0-pins-default {
+ pinctrl-single,pins = <
+ J721E_WKUP_IOPAD(0xe8, PIN_INPUT, 0) /* (H29) WKUP_GPIO0_14.MCU_UART0_CTSn */
+ J721E_WKUP_IOPAD(0xec, PIN_OUTPUT, 0) /* (J27) WKUP_GPIO0_15.MCU_UART0_RTSn */
+ J721E_WKUP_IOPAD(0xe4, PIN_INPUT, 0) /* (H28) WKUP_GPIO0_13.MCU_UART0_RXD */
+ J721E_WKUP_IOPAD(0xe0, PIN_OUTPUT, 0) /* (G29) WKUP_GPIO0_12.MCU_UART0_TXD */
+ >;
+ };
+
sw11_button_pins_default: sw11-button-pins-default {
pinctrl-single,pins = <
J721E_WKUP_IOPAD(0xcc, PIN_INPUT, 7) /* (G28) WKUP_GPIO0_7 */
@@ -369,32 +415,40 @@ J721E_WKUP_IOPAD(0xb8, PIN_INPUT, 7) /* (F28) WKUP_GPIO0_2 */
&wkup_uart0 {
/* Wakeup UART is used by System firmware */
status = "reserved";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_uart0_pins_default>;
};
&mcu_uart0 {
status = "okay";
- /* Default pinmux */
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcu_uart0_pins_default>;
};
&main_uart0 {
status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart0_pins_default>;
/* Shared with ATF on this platform */
power-domains = <&k3_pds 146 TI_SCI_PD_SHARED>;
};
&main_uart1 {
status = "okay";
- /* Default pinmux */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart1_pins_default>;
};
&main_uart2 {
status = "okay";
- /* Default pinmux */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart2_pins_default>;
};
&main_uart4 {
status = "okay";
- /* Default pinmux */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart4_pins_default>;
};
&main_gpio2 {
--
2.40.0
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