linux-kernel - [PATCH 07/12] arm64: dts: imx8mp-kontron: Fix CAN_ADDR0 and CAN

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Message-ID: <20250714141852.116455-8-frieder@fris.de>
Date: Mon, 14 Jul 2025 16:17:33 +0200
From: Frieder Schrempf <frieder@...s.de>
To: linux-arm-kernel@...ts.infradead.org,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>
Cc: Annette Kobou <annette.kobou@...tron.de>,
	Frieder Schrempf <frieder.schrempf@...tron.de>,
	Fabio Estevam <festevam@...il.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>
Subject: [PATCH 07/12] arm64: dts: imx8mp-kontron: Fix CAN_ADDR0 and CAN_ADDR1 GPIOs

From: Annette Kobou <annette.kobou@...tron.de>

Some signal assignments were modified between hardware revisions
1 and 2:

Revision 1:

  - SPI_A_WP   -> CAN_ADDR0
  - SPI_A_HOLD -> CAN_ADDR1

Revision 2 and later:

  - SPI_A_SDI -> CAN_ADDR0
  - SPI_A_SDO -> CAN_ADDR1

Fix the labels and add the missing pinctrls.

Signed-off-by: Annette Kobou <annette.kobou@...tron.de>
Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
---
 .../dts/freescale/imx8mp-kontron-bl-osm-s.dts | 31 ++++++++++++++++---
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
index 0eb9e726a9b81..4aa5c261b865d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
@@ -123,14 +123,12 @@ &gpio2 {
 
 /*
  * Rename SoM signals according to board usage:
- *   SPI_A_WP      -> CAN_ADDR0
- *   SPI_A_HOLD    -> CAN_ADDR1
  *   GPIO_B_0      -> DIO1_OUT
  *   GPIO_B_1      -> DIO2_OUT
  */
 &gpio3 {
 	gpio-line-names = "PCIE_WAKE", "PCIE_CLKREQ", "PCIE_A_PERST", "SDIO_B_D5",
-			  "SDIO_B_D6", "SDIO_B_D7", "CAN_ADDR0", "CAN_ADDR1",
+			  "SDIO_B_D6", "SDIO_B_D7", "SPI_A_WP", "SPI_A_HOLD",
 			  "UART_B_RTS", "UART_B_CTS", "SDIO_B_D0", "SDIO_B_D1",
 			  "SDIO_B_D2", "SDIO_B_D3", "SDIO_B_WP", "SDIO_B_D4",
 			  "PCIE_SM_ALERT", "SDIO_B_CLK", "SDIO_B_CMD", "DIO1_OUT",
@@ -159,6 +157,24 @@ &gpio4 {
 			  "GPIO_A_7", "CARRIER_PWR_EN", "I2S_A_DATA_IN", "I2S_LRCLK";
 };
 
+/*
+ * Rename SoM signals according to board usage:
+ *   SPI_A_SDI	-> CAN_ADDR0
+ *   SPI_A_SDO	-> CAN_ADDR1
+ */
+&gpio5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio5>;
+	gpio-line-names = "I2S_BITCLK", "I2S_A_DATA_OUT", "I2S_MCLK", "PWM_2",
+			  "PWM_1", "PWM_0", "SPI_A_SCK", "CAN_ADDR1",
+			  "CAN_ADDR0", "SPI_A_CS0", "SPI_B_SCK", "SPI_B_SDO",
+			  "SPI_B_SDI", "SPI_B_CS0", "I2C_A_SCL", "I2C_A_SDA",
+			  "I2C_B_SCL", "I2C_B_SDA", "PCIE_SMCLK", "PCIE_SMDAT",
+			  "I2C_CAM_SCL", "I2C_CAM_SDA", "UART_A_RX", "UART_A_TX",
+			  "UART_C_RX", "UART_C_TX", "UART_CON_RX", "UART_CON_TX",
+			  "UART_B_RX", "UART_B_TX";
+};
+
 &hdmi_pvi {
 	status = "okay";
 };
@@ -297,9 +313,16 @@ MX8MP_IOMUXC_SD2_WP__GPIO2_IO20			0x46
 		>;
 	};
 
+	pinctrl_gpio5: gpio5grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_ECSPI1_MOSI__GPIO5_IO07		0x46 /* CAN_ADR0 */
+			MX8MP_IOMUXC_ECSPI1_MISO__GPIO5_IO08		0x46 /* CAN_ADR1 */
+		>;
+	};
+
 	pinctrl_usb_hub: usbhubgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_NAND_DQS__GPIO3_IO14		0x46
 		>;
 	};
-};
+};
\ No newline at end of file
-- 
2.50.1