[PATCH v3 00/11] arm64: dts: freescale: imx8mm-var-som: Align SOM and Symphony DTSs

[PATCH v3 00/11] arm64: dts: freescale: imx8mm-var-som: Align SOM and Symphony DTSs

[Stefano Radaelli]

This series aligns the i.MX8MM VAR-SOM and VAR-SOM Symphony device
trees with the latest hardware revisions.

The update consolidates the device tree descriptions to better reflect
the actual hardware partitioning between the SOM and the carrier board.
Nodes describing peripherals physically present on the SOM are kept in
the SOM dtsi, while carrier-specific components are described in the
corresponding carrier dts.

The changes were tested on the latest VAR-SOM and Symphony hardware
revision.

v2->v3:
 - Add clock-names porperty along with clocks

v1->v2:
 - Moved phy LED configurations to symphony dts
 - Added Wifi/BT dtsi variants for both iw61x and brcm legacy modules

Stefano Radaelli (11):
  arm64: dts: freescale: imx8mm-var-som: Move UART4 description to
    Symphony
  arm64: dts: freescale: imx8mm-var-som: Align fsl,pins tables
  arm64: dts: freescale: imx8mm-var-som: Update FEC support with
    MaxLinear PHY
  arm64: dts: freescale: imx8mm-var-som: Add support for WM8904 audio
    codec
  arm64: dts: freescale: imx8mm-var-som: Add MCP251xFD CAN controller
  arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants
  arm64: dts: imx8mm-var-som-symphony: Move USB configuration from SOM
  arm64: dts: imx8mm-var-som-symphony: Enable uSD on USDHC2
  arm64: dts: imx8mm-var-som-symphony: Add TPM2 support
  arm64: dts: imx8mm-var-som-symphony: Enable I2C4
  arm64: dts: imx8mm-var-som-symphony: Enable PCIe

 .../dts/freescale/imx8mm-var-som-symphony.dts | 225 ++++++++++-
 .../imx8mm-var-som-wifi-brcm-legacy.dtsi      |  12 +
 .../imx8mm-var-som-wifi-bt-iw61x.dtsi         |  45 +++
 .../boot/dts/freescale/imx8mm-var-som.dtsi    | 366 ++++++++++++------
 4 files changed, 503 insertions(+), 145 deletions(-)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-brcm-legacy.dtsi
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi


base-commit: 37a93dd5c49b5fda807fd204edf2547c3493319c
-- 
2.47.3

[PATCH v3 01/11] arm64: dts: freescale: imx8mm-var-som: Move UART4 description to Symphony

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

The VAR-SOM-MX8MM module does not provide an onboard debug console.
UART4 is routed and exposed only on the Symphony carrier board, while
custom carrier designs may choose to expose a different UART.

Move the UART4 node from the SOM device tree to the
imx8mm-var-som-symphony.dts, keeping the SOM dtsi limited to hardware
present on the module itself.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../dts/freescale/imx8mm-var-som-symphony.dts  | 18 ++++++++++++++++++
 .../boot/dts/freescale/imx8mm-var-som.dtsi     | 18 ------------------
 2 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index affbc67c2ef6..819707e6f3bf 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -11,6 +11,10 @@ / {
 	model = "Variscite VAR-SOM-MX8MM Symphony evaluation board";
 	compatible = "variscite,var-som-mx8mm-symphony", "variscite,var-som-mx8mm", "fsl,imx8mm";
 
+	chosen {
+		stdout-path = &uart4;
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -156,6 +160,13 @@ &uart3 {
 	status = "okay";
 };
 
+/* Console */
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
 &usbotg1 {
 	disable-over-current;
 	extcon = <&extcon_usbotg1>, <&extcon_usbotg1>;
@@ -251,4 +262,11 @@ MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX	0x140
 			MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX	0x140
 		>;
 	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX	0x140
+			MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX	0x140
+		>;
+	};
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index 190bde4edcd7..b6560c03639e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -9,10 +9,6 @@
 / {
 	model = "Variscite VAR-SOM-MX8MM module";
 
-	chosen {
-		stdout-path = &uart4;
-	};
-
 	memory@40000000 {
 		device_type = "memory";
 		reg = <0x0 0x40000000 0 0x80000000>;
@@ -274,13 +270,6 @@ &uart2 {
 	status = "okay";
 };
 
-/* Console */
-&uart4 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_uart4>;
-	status = "okay";
-};
-
 &usbotg1 {
 	dr_mode = "otg";
 	usb-role-switch;
@@ -418,13 +407,6 @@ MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B	0x140
 		>;
 	};
 
-	pinctrl_uart4: uart4grp {
-		fsl,pins = <
-			MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX	0x140
-			MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX	0x140
-		>;
-	};
-
 	pinctrl_usdhc1: usdhc1grp {
 		fsl,pins = <
 			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x190
-- 
2.47.3

[PATCH v3 02/11] arm64: dts: freescale: imx8mm-var-som: Align fsl,pins tables

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Reformat the fsl,pins tables in the i.MX8MM VAR-SOM device tree to use
consistent column alignment across all pinctrl groups.

Align the entries to match the formatting already used in the
pinctrl_fec1 group, which contains the longest pin definitions,
for improved readability and consistency.

No functional changes intended.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../boot/dts/freescale/imx8mm-var-som.dtsi    | 170 +++++++++---------
 1 file changed, 85 insertions(+), 85 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index b6560c03639e..da3c7332ec34 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -368,171 +368,171 @@ MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x19
 
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL		0x400001c3
-			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA		0x400001c3
+			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL			0x400001c3
+			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA			0x400001c3
 		>;
 	};
 
 	pinctrl_i2c3: i2c3grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL		0x400001c3
-			MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA		0x400001c3
+			MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL			0x400001c3
+			MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA			0x400001c3
 		>;
 	};
 
 	pinctrl_pmic: pmicirqgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8	0x141
+			MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8		0x141
 		>;
 	};
 
 	pinctrl_reg_eth_phy: regethphygrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD1_DATA7_GPIO2_IO9	0x41
+			MX8MM_IOMUXC_SD1_DATA7_GPIO2_IO9		0x41
 		>;
 	};
 
 	pinctrl_restouch: restouchgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x1c0
+			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x1c0
 		>;
 	};
 
 	pinctrl_uart2: uart2grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX	0x140
-			MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX	0x140
-			MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B	0x140
-			MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B	0x140
+			MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX		0x140
+			MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX		0x140
+			MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B		0x140
+			MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B		0x140
 		>;
 	};
 
 	pinctrl_usdhc1: usdhc1grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x190
-			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d0
-			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d0
-			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d0
-			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d0
-			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d0
+			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK			0x190
+			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD			0x1d0
+			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0		0x1d0
+			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1		0x1d0
+			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2		0x1d0
+			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3		0x1d0
 		>;
 	};
 
 	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x194
-			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d4
-			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d4
-			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d4
-			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d4
-			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d4
+			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK			0x194
+			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD			0x1d4
+			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0		0x1d4
+			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1		0x1d4
+			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2		0x1d4
+			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3		0x1d4
 		>;
 	};
 
 	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x196
-			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d6
-			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d6
-			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d6
-			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d6
-			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d6
+			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK			0x196
+			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD			0x1d6
+			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0		0x1d6
+			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1		0x1d6
+			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2		0x1d6
+			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3		0x1d6
 		>;
 	};
 
 	pinctrl_usdhc2_gpio: usdhc2gpiogrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10	0xc1
+			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10		0xc1
 		>;
 	};
 
 	pinctrl_usdhc2: usdhc2grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x190
-			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d0
-			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d0
-			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d0
-			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d0
-			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d0
-			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x190
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d0
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d0
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d0
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d0
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d0
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT		0x1d0
 		>;
 	};
 
 	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x194
-			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4
-			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d4
-			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d4
-			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d4
-			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d4
-			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x194
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d4
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d4
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d4
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d4
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d4
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT		0x1d0
 		>;
 	};
 
 	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x196
-			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d6
-			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d6
-			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d6
-			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d6
-			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d6
-			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x196
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d6
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d6
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d6
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d6
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d6
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT		0x1d0
 		>;
 	};
 
 	pinctrl_usdhc3: usdhc3grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK	0x190
-			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d0
-			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d0
-			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d0
-			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d0
-			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d0
-			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d0
-			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d0
-			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d0
-			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d0
-			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x190
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK		0x190
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD		0x1d0
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0		0x1d0
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1		0x1d0
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2		0x1d0
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3		0x1d0
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4		0x1d0
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5		0x1d0
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6		0x1d0
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7		0x1d0
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE		0x190
 		>;
 	};
 
 	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK	0x194
-			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d4
-			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d4
-			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d4
-			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d4
-			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d4
-			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d4
-			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d4
-			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d4
-			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d4
-			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x194
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK		0x194
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD		0x1d4
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0		0x1d4
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1		0x1d4
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2		0x1d4
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3		0x1d4
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4		0x1d4
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5		0x1d4
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6		0x1d4
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7		0x1d4
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE		0x194
 		>;
 	};
 
 	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK	0x196
-			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d6
-			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d6
-			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d6
-			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d6
-			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d6
-			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d6
-			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d6
-			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d6
-			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d6
-			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x196
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK		0x196
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD		0x1d6
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0		0x1d6
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1		0x1d6
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2		0x1d6
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3		0x1d6
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4		0x1d6
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5		0x1d6
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6		0x1d6
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7		0x1d6
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE		0x196
 		>;
 	};
 
 	pinctrl_wdog: wdoggrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B	0x166
+			MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B		0x166
 		>;
 	};
 };
-- 
2.47.3

[PATCH v3 03/11] arm64: dts: freescale: imx8mm-var-som: Update FEC support with MaxLinear PHY

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Update the FEC Ethernet controller on the i.MX8MM VAR-SOM to match the
latest SOM hardware revision using the integrated MaxLinear MXL86110 PHY.

Add the PHY VDDIO supply regulator, adjust reset timings and add a
pinctrl sleep state for low-power operation.

The PHY LED signals originate on the SOM, but the actual LEDs are part
of the carrier implementation (RJ45 connector). Move the LED
configuration to the Symphony carrier device tree, matching the
evaluation board LED wiring.

The enet_rst GPIO hog on the carrier is kept to ensure a defined
board-level reset line state during boot.

Wake-on-LAN via magic packet is not supported at the VAR-SOM level and
is therefore not enabled in the SOM device tree nor in the official
evaluation carrier board configuration (symphony).
Designs requiring WoL support may enable it in their own carrier-specific
device trees if properly integrated at the hardware level.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - Moved phy LED configurations to symphony dts

 .../dts/freescale/imx8mm-var-som-symphony.dts | 27 ++++++++++++-
 .../boot/dts/freescale/imx8mm-var-som.dtsi    | 39 +++++++++++++++++--
 2 files changed, 62 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 819707e6f3bf..712892edba8f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -5,6 +5,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/leds/common.h>
 #include "imx8mm-var-som.dtsi"
 
 / {
@@ -71,7 +72,24 @@ led {
 };
 
 &ethphy {
-	reset-gpios = <&pca9534 5 GPIO_ACTIVE_HIGH>;
+	leds {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		led@0 {
+			reg = <0>;
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_LAN;
+			linux,default-trigger = "netdev";
+		};
+
+		led@1 {
+			reg = <1>;
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			linux,default-trigger = "netdev";
+		};
+	};
 };
 
 &i2c2 {
@@ -99,6 +117,13 @@ usb3-sata-sel-hog {
 			line-name = "usb3_sata_sel";
 		};
 
+		enet-rst-hog {
+			gpio-hog;
+			gpios = <5 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "enet_rst";
+		};
+
 		som-vselect-hog {
 			gpio-hog;
 			gpios = <6 GPIO_ACTIVE_HIGH>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index da3c7332ec34..24924ee1e8c7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -24,6 +24,13 @@ reg_eth_phy: regulator-eth-phy {
 		gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	reg_phy_vddio: regulator-phy-vddio {
+		compatible = "regulator-fixed";
+		regulator-name = "vddio-1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
 };
 
 &A53_0 {
@@ -99,12 +106,17 @@ touchscreen@0 {
 };
 
 &fec1 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&pinctrl_fec1>;
+	pinctrl-1 = <&pinctrl_fec1_sleep>;
+	/*
+	 * The required RGMII TX and RX 2ns delays are implemented directly
+	 * in hardware via passive delay elements on the SOM PCB.
+	 * No delay configuration is needed in software via PHY driver.
+	 */
 	phy-mode = "rgmii";
 	phy-handle = <&ethphy>;
 	phy-supply = <&reg_eth_phy>;
-	fsl,magic-packet;
 	status = "okay";
 
 	mdio {
@@ -116,7 +128,8 @@ ethphy: ethernet-phy@4 {
 			reg = <4>;
 			reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
 			reset-assert-us = <10000>;
-			reset-deassert-us = <10000>;
+			reset-deassert-us = <100000>;
+			vddio-supply = <&reg_phy_vddio>;
 		};
 	};
 };
@@ -366,6 +379,26 @@ MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x19
 		>;
 	};
 
+	pinctrl_fec1_sleep: fec1sleepgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_ENET_MDC_GPIO1_IO16		0x120
+			MX8MM_IOMUXC_ENET_MDIO_GPIO1_IO17		0x120
+			MX8MM_IOMUXC_ENET_TD3_GPIO1_IO18		0x120
+			MX8MM_IOMUXC_ENET_TD2_GPIO1_IO19		0x120
+			MX8MM_IOMUXC_ENET_TD1_GPIO1_IO20		0x120
+			MX8MM_IOMUXC_ENET_TD0_GPIO1_IO21		0x120
+			MX8MM_IOMUXC_ENET_RD3_GPIO1_IO29		0x120
+			MX8MM_IOMUXC_ENET_RD2_GPIO1_IO28		0x120
+			MX8MM_IOMUXC_ENET_RD1_GPIO1_IO27		0x120
+			MX8MM_IOMUXC_ENET_RD0_GPIO1_IO26		0x120
+			MX8MM_IOMUXC_ENET_TXC_GPIO1_IO23		0x120
+			MX8MM_IOMUXC_ENET_RXC_GPIO1_IO25		0x120
+			MX8MM_IOMUXC_ENET_RX_CTL_GPIO1_IO24		0x120
+			MX8MM_IOMUXC_ENET_TX_CTL_GPIO1_IO22		0x120
+			MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x100
+		>;
+	};
+
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
 			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL			0x400001c3
-- 
2.47.3

Re: [PATCH v3 03/11] arm64: dts: freescale: imx8mm-var-som: Update FEC support with MaxLinear PHY

[Frank Li]

On Sat, Mar 07, 2026 at 04:54:39PM +0100, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> Update the FEC Ethernet controller on the i.MX8MM VAR-SOM to match the
> latest SOM hardware revision using the integrated MaxLinear MXL86110 PHY.
>
> Add the PHY VDDIO supply regulator, adjust reset timings and add a
> pinctrl sleep state for low-power operation.
>
> The PHY LED signals originate on the SOM, but the actual LEDs are part
> of the carrier implementation (RJ45 connector). Move the LED
> configuration to the Symphony carrier device tree, matching the
> evaluation board LED wiring.
>
> The enet_rst GPIO hog on the carrier is kept to ensure a defined
> board-level reset line state during boot.
>
> Wake-on-LAN via magic packet is not supported at the VAR-SOM level and
> is therefore not enabled in the SOM device tree nor in the official
> evaluation carrier board configuration (symphony).
> Designs requiring WoL support may enable it in their own carrier-specific
> device trees if properly integrated at the hardware level.
>
>
> +		enet-rst-hog {
> +			gpio-hog;
> +			gpios = <5 GPIO_ACTIVE_HIGH>;
> +			output-low;
> +			line-name = "enet_rst";
> +		};
> +

Any enet referent to this gpio node, otherwise can't guarantee device
probe order, maybe enet driver probe before gpio. rst is critcial signal.

Frank
>

Re: [PATCH v3 03/11] arm64: dts: freescale: imx8mm-var-som: Update FEC support with MaxLinear PHY

[Stefano Radaelli]

Hi Frank

On Fri, Mar 13, 2026 at 11:53:36AM -0400, Frank Li wrote:
> On Sat, Mar 07, 2026 at 04:54:39PM +0100, Stefano Radaelli wrote:
> 
> Any enet referent to this gpio node, otherwise can't guarantee device
> probe order, maybe enet driver probe before gpio. rst is critcial signal.
> 

Thanks for pointing this out.

That was just a leftover GPIO hog and not actually used on i.MX8MM.
It will be removed in the next revision.

Best regards,
Stefano

[PATCH v3 04/11] arm64: dts: freescale: imx8mm-var-som: Add support for WM8904 audio codec

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

The VAR-SOM-MX8MM can integrate the WM8904, a high-performance
ultra-low-power stereo codec optimized for portable audio applications.

This patch adds the WM8904 device to the appropriate I2C bus, enables
the SAI peripheral, and introduces the sound node to expose the
sound card to the system.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../boot/dts/freescale/imx8mm-var-som.dtsi    | 100 +++++++++++++++++-
 1 file changed, 97 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index 24924ee1e8c7..7cedef8add32 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -14,6 +14,14 @@ memory@40000000 {
 		reg = <0x0 0x40000000 0 0x80000000>;
 	};
 
+	reg_audio_supply: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "wm8904-supply";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	reg_eth_phy: regulator-eth-phy {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -31,6 +39,34 @@ reg_phy_vddio: regulator-phy-vddio {
 		regulator-min-microvolt = <1800000>;
 		regulator-max-microvolt = <1800000>;
 	};
+
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,bitclock-master = <&codec_dai>;
+		simple-audio-card,format = "i2s";
+		simple-audio-card,frame-master = <&codec_dai>;
+		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,name = "wm8904-audio";
+		simple-audio-card,routing =
+			"Headphone Jack", "HPOUTL",
+			"Headphone Jack", "HPOUTR",
+			"IN2L", "Line In Jack",
+			"IN2R", "Line In Jack",
+			"IN1L", "Microphone Jack",
+			"IN1R", "Microphone Jack";
+		simple-audio-card,widgets =
+			"Microphone", "Microphone Jack",
+			"Headphone", "Headphone Jack",
+			"Line", "Line In Jack";
+
+		codec_dai: simple-audio-card,codec {
+			sound-dai = <&wm8904>;
+		};
+
+		simple-audio-card,cpu {
+			sound-dai = <&sai5>;
+		};
+	};
 };
 
 &A53_0 {
@@ -257,18 +293,57 @@ ldo6_reg: LDO6 {
 
 &i2c3 {
 	clock-frequency = <400000>;
-	pinctrl-names = "default";
+	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_i2c3>;
+	pinctrl-1 = <&pinctrl_i2c3_gpio>;
+	scl-gpios = <&gpio5 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 
-	/* TODO: configure audio, as of now just put a placeholder */
 	wm8904: codec@1a {
 		compatible = "wlf,wm8904";
 		reg = <0x1a>;
-		status = "disabled";
+		#sound-dai-cells = <0>;
+		clocks = <&clk IMX8MM_CLK_SAI5_ROOT>;
+		clock-names = "mclk";
+		AVDD-supply = <&ldo5_reg>;
+		CPVDD-supply = <&ldo5_reg>;
+		DBVDD-supply = <&reg_audio_supply>;
+		DCVDD-supply = <&ldo5_reg>;
+		MICVDD-supply = <&ldo5_reg>;
+		wlf,drc-cfg-names = "default", "peaklimiter", "tradition",
+				    "soft", "music";
+		/*
+		 * Config registers per name, respectively:
+		 * KNEE_IP = 0,   KNEE_OP = 0,     HI_COMP = 1,   LO_COMP = 1
+		 * KNEE_IP = -24, KNEE_OP = -6,    HI_COMP = 1/4, LO_COMP = 1
+		 * KNEE_IP = -42, KNEE_OP = -3,    HI_COMP = 0,   LO_COMP = 1
+		 * KNEE_IP = -45, KNEE_OP = -9,    HI_COMP = 1/8, LO_COMP = 1
+		 * KNEE_IP = -30, KNEE_OP = -10.5, HI_COMP = 1/4, LO_COMP = 1
+		 */
+		wlf,drc-cfg-regs = /bits/ 16 <0x01af 0x3248 0x0000 0x0000>,
+				   /bits/ 16 <0x04af 0x324b 0x0010 0x0408>,
+				   /bits/ 16 <0x04af 0x324b 0x0028 0x0704>,
+				   /bits/ 16 <0x04af 0x324b 0x0018 0x078c>,
+				   /bits/ 16 <0x04af 0x324b 0x0010 0x050e>;
+		/* GPIO1 = DMIC_CLK, don't touch others */
+		wlf,gpio-cfg = <0x0018>, <0xffff>, <0xffff>, <0xffff>;
 	};
 };
 
+&sai5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai5>;
+	assigned-clocks = <&clk IMX8MM_CLK_SAI5>;
+	assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <1536000>;
+	#sound-dai-cells = <0>;
+	dmas = <&sdma2 8 25 0>, <&sdma2 9 25 0>;
+	dma-names = "rx", "tx";
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
+
 &snvs_pwrkey {
 	status = "okay";
 };
@@ -413,6 +488,13 @@ MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA			0x400001c3
 		>;
 	};
 
+	pinctrl_i2c3_gpio: i2c3gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C3_SCL_GPIO5_IO18		0x1c3
+			MX8MM_IOMUXC_I2C3_SDA_GPIO5_IO19		0x1c3
+		>;
+	};
+
 	pinctrl_pmic: pmicirqgrp {
 		fsl,pins = <
 			MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8		0x141
@@ -431,6 +513,18 @@ MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x1c0
 		>;
 	};
 
+	pinctrl_sai5: sai5grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI5_RXD1_SAI5_TX_SYNC		0xd6
+			MX8MM_IOMUXC_SAI5_RXFS_SAI5_RX_SYNC		0xd6
+			MX8MM_IOMUXC_SAI5_RXD3_SAI5_TX_DATA0		0xd6
+			MX8MM_IOMUXC_SAI5_RXD0_SAI5_RX_DATA0		0xd6
+			MX8MM_IOMUXC_SAI5_RXC_SAI5_RX_BCLK		0xd6
+			MX8MM_IOMUXC_SAI5_RXD2_SAI5_TX_BCLK		0xd6
+			MX8MM_IOMUXC_SAI5_MCLK_SAI5_MCLK		0xd6
+		>;
+	};
+
 	pinctrl_uart2: uart2grp {
 		fsl,pins = <
 			MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX		0x140
-- 
2.47.3

Re: [PATCH v3 04/11] arm64: dts: freescale: imx8mm-var-som: Add support for WM8904 audio codec

[Frank Li]

On Sat, Mar 07, 2026 at 04:54:40PM +0100, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> The VAR-SOM-MX8MM can integrate the WM8904, a high-performance
> ultra-low-power stereo codec optimized for portable audio applications.
>
> This patch adds the WM8904 device to the appropriate I2C bus, enables

Remove words "This patch", Just said Add the WM8904 ...

Frank
>

[PATCH v3 05/11] arm64: dts: freescale: imx8mm-var-som: Add MCP251xFD CAN controller

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Add support for the Microchip MCP251xFD CAN-FD controller connected
to the SPI bus on the i.MX8MM VAR-SOM.

The controller uses a 40 MHz external oscillator and requires an
interrupt line and a dedicated RX interrupt GPIO.

This patch adds the fixed clock, the MCP251xFD device node with the
required properties, and the corresponding pinctrl configuration.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../boot/dts/freescale/imx8mm-var-som.dtsi    | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index 7cedef8add32..21a4d87c0e26 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -14,6 +14,13 @@ memory@40000000 {
 		reg = <0x0 0x40000000 0 0x80000000>;
 	};
 
+	clk40m: oscillator {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <40000000>;
+		clock-output-names = "can_osc";
+	};
+
 	reg_audio_supply: regulator-3p3v {
 		compatible = "regulator-fixed";
 		regulator-name = "wm8904-supply";
@@ -139,6 +146,19 @@ touchscreen@0 {
 		ti,keep-vref-on;
 		wakeup-source;
 	};
+
+	/* CAN controller */
+	can0: can@1 {
+		compatible = "microchip,mcp251xfd";
+		reg = <1>;
+		clocks = <&clk40m>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_can>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+		microchip,rx-int-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+		spi-max-frequency = <20000000>;
+	};
 };
 
 &fec1 {
@@ -424,6 +444,13 @@ &wdog1 {
 };
 
 &iomuxc {
+	pinctrl_can: cangrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5		0x16
+			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x16
+		>;
+	};
+
 	pinctrl_ecspi1: ecspi1grp {
 		fsl,pins = <
 			MX8MM_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK		0x13
-- 
2.47.3

Re: [PATCH v3 05/11] arm64: dts: freescale: imx8mm-var-som: Add MCP251xFD CAN controller

[Frank Li]

On Sat, Mar 07, 2026 at 04:54:41PM +0100, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> Add support for the Microchip MCP251xFD CAN-FD controller connected
> to the SPI bus on the i.MX8MM VAR-SOM.
>
> The controller uses a 40 MHz external oscillator and requires an
> interrupt line and a dedicated RX interrupt GPIO.
>
> This patch adds the fixed clock, the MCP251xFD device node with the

Remove "This patch", Just said Add the fixed clock ...

Frank

[PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

The VAR-SOM-MX8MM currently integrates the NXP IW61x wireless module,
providing WiFi over SDIO and Bluetooth over UART.

Move the wireless module configuration out of the base
imx8mm-var-som.dtsi and provide dedicated variant includes.
The IW61x configuration is moved to imx8mm-var-som-wifi-bt-iw61x.dtsi
and used by the Symphony evaluation board device tree.

A separate imx8mm-var-som-wifi-brcm-legacy.dtsi include is added to keep
the configuration for the legacy Broadcom SDIO WiFi module used on
earlier SOM revisions.
The Broadcom-based SOM revision is no longer in production, but the
configuration is kept separately to preserve compatibility with existing
boards.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - Added Wifi/BT dtsi variants for both iw61x and brcm legacy modules

 .../dts/freescale/imx8mm-var-som-symphony.dts |  1 +
 .../imx8mm-var-som-wifi-brcm-legacy.dtsi      | 12 +++++
 .../imx8mm-var-som-wifi-bt-iw61x.dtsi         | 45 +++++++++++++++++++
 .../boot/dts/freescale/imx8mm-var-som.dtsi    |  6 ---
 4 files changed, 58 insertions(+), 6 deletions(-)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-brcm-legacy.dtsi
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 712892edba8f..51ac8ee34c3b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -7,6 +7,7 @@
 
 #include <dt-bindings/leds/common.h>
 #include "imx8mm-var-som.dtsi"
+#include "imx8mm-var-som-wifi-bt-iw61x.dtsi"
 
 / {
 	model = "Variscite VAR-SOM-MX8MM Symphony evaluation board";
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-brcm-legacy.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-brcm-legacy.dtsi
new file mode 100644
index 000000000000..f44a846ea6f9
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-brcm-legacy.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2026 Variscite Ltd.
+ */
+
+/* WIFI */
+&usdhc1 {
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi
new file mode 100644
index 000000000000..15990d141d2a
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2026 Variscite Ltd.
+ */
+
+/ {
+	iw61x_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		post-power-on-delay-ms = <100>;
+		power-off-delay-us = <10000>;
+		reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>, /* WIFI_RESET */
+			      <&gpio2 20 GPIO_ACTIVE_LOW>; /* WIFI_PWR_EN */
+	};
+};
+
+&uart2 {
+	pinctrl-0 = <&pinctrl_uart2>, <&pinctrl_bt>;
+
+	bluetooth_iw61x: bluetooth {
+		compatible = "nxp,88w8987-bt";
+	};
+};
+
+/* WIFI */
+&usdhc1 {
+	pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_wifi>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>, <&pinctrl_wifi>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>, <&pinctrl_wifi>;
+	mmc-pwrseq = <&iw61x_pwrseq>;
+};
+
+&iomuxc {
+	pinctrl_bt: bluetoothgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD1_DATA4_GPIO2_IO6	0xc1
+		>;
+	};
+
+	pinctrl_wifi: wifigrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_WP_GPIO2_IO20		0x140
+			MX8MM_IOMUXC_SD1_RESET_B_GPIO2_IO10	0xc1
+		>;
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index 21a4d87c0e26..c37badc4cf27 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -390,7 +390,6 @@ &usbotg2 {
 	status = "okay";
 };
 
-/* WIFI */
 &usdhc1 {
 	#address-cells = <1>;
 	#size-cells = <0>;
@@ -402,11 +401,6 @@ &usdhc1 {
 	non-removable;
 	keep-power-in-suspend;
 	status = "okay";
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
 };
 
 /* SD */
-- 
2.47.3

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Frank Li]

On Sat, Mar 07, 2026 at 04:54:42PM +0100, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> The VAR-SOM-MX8MM currently integrates the NXP IW61x wireless module,
> providing WiFi over SDIO and Bluetooth over UART.
>
> Move the wireless module configuration out of the base
> imx8mm-var-som.dtsi and provide dedicated variant includes.
> The IW61x configuration is moved to imx8mm-var-som-wifi-bt-iw61x.dtsi
> and used by the Symphony evaluation board device tree.
>
> A separate imx8mm-var-som-wifi-brcm-legacy.dtsi include is added to keep
> the configuration for the legacy Broadcom SDIO WiFi module used on
> earlier SOM revisions.

Need empty line here.

> The Broadcom-based SOM revision is no longer in production, but the
> configuration is kept separately to preserve compatibility with existing
> boards.
>
> Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
> ---
> v2->v3:
>  -
>
> v1->v2:
>  - Added Wifi/BT dtsi variants for both iw61x and brcm legacy modules
>
>  .../dts/freescale/imx8mm-var-som-symphony.dts |  1 +
>  .../imx8mm-var-som-wifi-brcm-legacy.dtsi      | 12 +++++
>  .../imx8mm-var-som-wifi-bt-iw61x.dtsi         | 45 +++++++++++++++++++
>  .../boot/dts/freescale/imx8mm-var-som.dtsi    |  6 ---
>  4 files changed, 58 insertions(+), 6 deletions(-)
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-brcm-legacy.dtsi
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi
>
...
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som-wifi-bt-iw61x.dtsi
> new file mode 100644
> index 000000000000..15990d141d2a

All new file run https://github.com/lznuaa/dt-format to keep nice order.

Frank
>

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Fabio Estevam]

On Sat, Mar 7, 2026 at 12:55 PM Stefano Radaelli
<stefano.radaelli21@gmail.com> wrote:
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>

One From line is enough.

>
> The VAR-SOM-MX8MM currently integrates the NXP IW61x wireless module,
> providing WiFi over SDIO and Bluetooth over UART.
>
> Move the wireless module configuration out of the base
> imx8mm-var-som.dtsi and provide dedicated variant includes.
> The IW61x configuration is moved to imx8mm-var-som-wifi-bt-iw61x.dtsi
> and used by the Symphony evaluation board device tree.
>
> A separate imx8mm-var-som-wifi-brcm-legacy.dtsi include is added to keep
> the configuration for the legacy Broadcom SDIO WiFi module used on
> earlier SOM revisions.
> The Broadcom-based SOM revision is no longer in production, but the
> configuration is kept separately to preserve compatibility with existing
> boards.

 imx8mm-var-som-wifi-brcm-legacy.dtsi is not included anywhere, right?

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Stefano Radaelli]

Hi Fabio,

On Fri, Mar 13, 2026 at 01:41:02PM -0300, Fabio Estevam wrote:
> 
> One From line is enough.
> 

Yes, that was a mistake on my side. Something in my workflow ended up
adding the "From:" line twice. I will fix it in the next revision.

> 
>  imx8mm-var-som-wifi-brcm-legacy.dtsi is not included anywhere, right?

Correct. It is not included anywhere at the moment.
The Symphony evaluation board uses the IW61x configuration.
The imx8mm-var-som-wifi-brcm-legacy.dtsi file is kept as a separate include
so that carrier boards using the legacy Broadcom-based SOM revision can
include it if needed.

Best Regards,
Stefano

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Fabio Estevam]

On Fri, Mar 13, 2026 at 1:46 PM Stefano Radaelli
<stefano.radaelli21@gmail.com> wrote:

> Correct. It is not included anywhere at the moment.
> The Symphony evaluation board uses the IW61x configuration.
> The imx8mm-var-som-wifi-brcm-legacy.dtsi file is kept as a separate include
> so that carrier boards using the legacy Broadcom-based SOM revision can
> include it if needed.

Then imx8mm-var-som-wifi-brcm-legacy.dtsi is dead code. Nothing includes it.

I don't think we want a dead dts in the tree.

IW612 has not been upstreamed, right?

People using the Broadcom Wi-Fi on the old board may still want to
continue using it.

Please don't break it.

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Stefano Radaelli]

Hi Fabio,

On Fri, Mar 13, 2026 at 01:52:31PM -0300, Fabio Estevam wrote:
> On Fri, Mar 13, 2026 at 1:46 PM Stefano Radaelli
> <stefano.radaelli21@gmail.com> wrote:
> 
> > Correct. It is not included anywhere at the moment.
> > The Symphony evaluation board uses the IW61x configuration.
> > The imx8mm-var-som-wifi-brcm-legacy.dtsi file is kept as a separate include
> > so that carrier boards using the legacy Broadcom-based SOM revision can
> > include it if needed.
> 
> Then imx8mm-var-som-wifi-brcm-legacy.dtsi is dead code. Nothing includes it.
> 
> I don't think we want a dead dts in the tree.
> 
> IW612 has not been upstreamed, right?
> 
> People using the Broadcom Wi-Fi on the old board may still want to
> continue using it.
> 
> Please don't break it.


Thanks for the feedback!

I might have misunderstood the best approach here. The reason I split the
WiFi/BT configuration into separate dtsi files was to follow the direction
discussed in the previous revision, where we decided to keep support for the
legacy Broadcom-based SOM while moving the configuration out of the
device tree, giving the support for both modules revisions.

However, I see your point that if it is not referenced anywhere it becomes
dead code:
Would it make sense to add a legacy Symphony DTS that includes the Broadcom
configuration, in addition to the current Symphony DTS that uses the IW61x?
This way the existing boards would keep working while the default board
description reflects the currently produced hardware.

Or if you have any other suggestion, I'd be happy to follow it!

Best regards,
Stefano

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Frank Li]

On Fri, Mar 13, 2026 at 06:05:09PM +0100, Stefano Radaelli wrote:
> Hi Fabio,
>
> On Fri, Mar 13, 2026 at 01:52:31PM -0300, Fabio Estevam wrote:
> > On Fri, Mar 13, 2026 at 1:46 PM Stefano Radaelli
> > <stefano.radaelli21@gmail.com> wrote:
> >
> > > Correct. It is not included anywhere at the moment.
> > > The Symphony evaluation board uses the IW61x configuration.
> > > The imx8mm-var-som-wifi-brcm-legacy.dtsi file is kept as a separate include
> > > so that carrier boards using the legacy Broadcom-based SOM revision can
> > > include it if needed.
> >
> > Then imx8mm-var-som-wifi-brcm-legacy.dtsi is dead code. Nothing includes it.
> >
> > I don't think we want a dead dts in the tree.
> >
> > IW612 has not been upstreamed, right?
> >
> > People using the Broadcom Wi-Fi on the old board may still want to
> > continue using it.
> >
> > Please don't break it.
>
>
> Thanks for the feedback!
>
> I might have misunderstood the best approach here. The reason I split the
> WiFi/BT configuration into separate dtsi files was to follow the direction
> discussed in the previous revision, where we decided to keep support for the
> legacy Broadcom-based SOM while moving the configuration out of the
> device tree, giving the support for both modules revisions.
>
> However, I see your point that if it is not referenced anywhere it becomes
> dead code:
> Would it make sense to add a legacy Symphony DTS that includes the Broadcom
> configuration, in addition to the current Symphony DTS that uses the IW61x?

Yes.

Frank

> This way the existing boards would keep working while the default board
> description reflects the currently produced hardware.
>
> Or if you have any other suggestion, I'd be happy to follow it!
>
> Best regards,
> Stefano

Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Fabio Estevam]

On Fri, Mar 13, 2026 at 2:05 PM Stefano Radaelli
<stefano.radaelli21@gmail.com> wrote:

> Thanks for the feedback!
>
> I might have misunderstood the best approach here. The reason I split the
> WiFi/BT configuration into separate dtsi files was to follow the direction
> discussed in the previous revision, where we decided to keep support for the
> legacy Broadcom-based SOM while moving the configuration out of the
> device tree, giving the support for both modules revisions.
>
> However, I see your point that if it is not referenced anywhere it becomes
> dead code:
> Would it make sense to add a legacy Symphony DTS that includes the Broadcom
> configuration, in addition to the current Symphony DTS that uses the IW61x?
> This way the existing boards would keep working while the default board
> description reflects the currently produced hardware.

Yes, the idea is not to break the old boards with the Broadcom Wifi.

[PATCH v3 07/11] arm64: dts: imx8mm-var-som-symphony: Move USB configuration from SOM

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Move the USB controller configuration out of the i.MX8MM VAR-SOM dtsi
and into the VAR-SOM Symphony carrier board dts.

The SOM does not provide any USB connectors and carrier boards may
choose whether and how to route USB, therefore USB should be described
in the carrier-specific device tree instead of the SOM include.

While moving the nodes, align the Symphony USB description with the
carrier design by enabling both USB controllers, wiring USB1 to the
PTN5150 Type-C controller for dual-role operation, and updating the
PHY tuning and VBUS regulator pinctrl (including a sleep state).

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../dts/freescale/imx8mm-var-som-symphony.dts | 52 ++++++++++++-------
 .../boot/dts/freescale/imx8mm-var-som.dtsi    | 12 -----
 2 files changed, 34 insertions(+), 30 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 51ac8ee34c3b..86246de8f36f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -32,6 +32,7 @@ reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_reg_usb_otg2_vbus>;
+		pinctrl-1 = <&pinctrl_reg_usb_otg2_vbus_sleep>;
 		regulator-name = "usb_otg2_vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
@@ -140,13 +141,20 @@ enet-sel-hog {
 		};
 	};
 
-	extcon_usbotg1: typec@3d {
+	/* USB Type-C Controller */
+	ptn5150: typec@3d {
 		compatible = "nxp,ptn5150";
 		reg = <0x3d>;
-		interrupt-parent = <&gpio1>;
-		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_ptn5150>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <11 IRQ_TYPE_NONE>;
+
+		port {
+			typec1_dr_sw: endpoint {
+				remote-endpoint = <&usb1_drd_sw>;
+			};
+		};
 	};
 };
 
@@ -194,27 +202,29 @@ &uart4 {
 };
 
 &usbotg1 {
-	disable-over-current;
-	extcon = <&extcon_usbotg1>, <&extcon_usbotg1>;
+	dr_mode = "otg";
+	hnp-disable;
+	srp-disable;
+	adp-disable;
+	usb-role-switch;
+	samsung,picophy-pre-emp-curr-control = <3>;
+	samsung,picophy-dc-vol-level-adjust = <7>;
+	status = "okay";
+
+	port {
+		usb1_drd_sw: endpoint {
+			remote-endpoint = <&typec1_dr_sw>;
+		};
+	};
 };
 
 &usbotg2 {
 	dr_mode = "host";
 	vbus-supply = <&reg_usb_otg2_vbus>;
-	srp-disable;
-	hnp-disable;
-	adp-disable;
+	samsung,picophy-pre-emp-curr-control = <3>;
+	samsung,picophy-dc-vol-level-adjust = <7>;
 	disable-over-current;
-	/delete-property/ usb-role-switch;
-	/*
-	 * FIXME: having USB2 enabled hangs the boot just after:
-	 * [    1.943365] ci_hdrc ci_hdrc.1: EHCI Host Controller
-	 * [    1.948287] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
-	 * [    1.971006] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
-	 * [    1.977203] hub 1-0:1.0: USB hub found
-	 * [    1.980987] hub 1-0:1.0: 1 port detected
-	 */
-	status = "disabled";
+	status = "okay";
 };
 
 &pinctrl_fec1 {
@@ -269,6 +279,12 @@ MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1		0x16
 		>;
 	};
 
+	pinctrl_reg_usb_otg2_vbus_sleep: regusbotg2vbus-sleepgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1		0x120
+		>;
+	};
+
 	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
 		fsl,pins = <
 			MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19	0x41
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index c37badc4cf27..75f56dc89b8e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -378,18 +378,6 @@ &uart2 {
 	status = "okay";
 };
 
-&usbotg1 {
-	dr_mode = "otg";
-	usb-role-switch;
-	status = "okay";
-};
-
-&usbotg2 {
-	dr_mode = "otg";
-	usb-role-switch;
-	status = "okay";
-};
-
 &usdhc1 {
 	#address-cells = <1>;
 	#size-cells = <0>;
-- 
2.47.3

Re: [PATCH v3 07/11] arm64: dts: imx8mm-var-som-symphony: Move USB configuration from SOM

[Frank Li]

On Sat, Mar 07, 2026 at 04:54:43PM +0100, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> Move the USB controller configuration out of the i.MX8MM VAR-SOM dtsi
> and into the VAR-SOM Symphony carrier board dts.
>
> The SOM does not provide any USB connectors and carrier boards may
> choose whether and how to route USB, therefore USB should be described
> in the carrier-specific device tree instead of the SOM include.
>
> While moving the nodes, align the Symphony USB description with the
> carrier design by enabling both USB controllers, wiring USB1 to the
> PTN5150 Type-C controller for dual-role operation, and updating the
> PHY tuning and VBUS regulator pinctrl (including a sleep state).
>
> Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
> ---
> v2->v3:
>  -
>
> v1->v2:
>  -
>
...
>
> -	extcon_usbotg1: typec@3d {
> +	/* USB Type-C Controller */
> +	ptn5150: typec@3d {
>  		compatible = "nxp,ptn5150";
>  		reg = <0x3d>;
> -		interrupt-parent = <&gpio1>;
> -		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&pinctrl_ptn5150>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <11 IRQ_TYPE_NONE>;

why need update irq type here?

Frank
>

[PATCH v3 08/11] arm64: dts: imx8mm-var-som-symphony: Enable uSD on USDHC2

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Enable the microSD slot on the VAR-SOM Symphony carrier board.

Configure USDHC2 with card-detect GPIO, pinctrl states for the supported
bus speeds and the required VMMC supply.

Update the VMMC regulator to match the latest carrier revision by moving
the enable GPIO to GPIO4_IO22 and adding the required off-on delay.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../dts/freescale/imx8mm-var-som-symphony.dts | 59 ++++++++++++++++++-
 1 file changed, 57 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 86246de8f36f..66c306f755af 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -24,7 +24,8 @@ reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
 		regulator-name = "VSD_3V3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		gpio = <&gpio4 22 GPIO_ACTIVE_HIGH>;
+		off-on-delay-us = <20000>;
 		enable-active-high;
 	};
 
@@ -227,6 +228,18 @@ &usbotg2 {
 	status = "okay";
 };
 
+/* SD */
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
+	cd-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	bus-width = <4>;
+	status = "okay";
+};
+
 &pinctrl_fec1 {
 	fsl,pins = <
 		MX8MM_IOMUXC_ENET_MDC_ENET1_MDC			0x3
@@ -287,7 +300,7 @@ MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1		0x120
 
 	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
 		fsl,pins = <
-			MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19	0x41
+			MX8MM_IOMUXC_SAI2_RXC_GPIO4_IO22	0x41
 		>;
 	};
 
@@ -311,4 +324,46 @@ MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX	0x140
 			MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX	0x140
 		>;
 	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x190
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d0
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d0
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d0
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d0
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d0
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x194
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d4
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d4
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d4
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d4
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x196
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d6
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d6
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d6
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d6
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d6
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_gpio: usdhc2gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10	0xc1
+		>;
+	};
 };
-- 
2.47.3

[PATCH v3 09/11] arm64: dts: imx8mm-var-som-symphony: Add TPM2 support

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Add support for the TPM2 device on the VAR-SOM Symphony carrier board.

The ST33K TPM2 is connected over I2C, and A PCA6408 GPIO expander is
used to control the reset signal required to release the TPM from reset.

This patch adds:
- The PCA6408 GPIO expander.
- The ST33K TPM2 device node.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../boot/dts/freescale/imx8mm-var-som-symphony.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 66c306f755af..a77085b264e5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -160,6 +160,20 @@ typec1_dr_sw: endpoint {
 };
 
 &i2c3 {
+	pca6408: gpio@21 {
+		compatible = "nxp,pcal6408";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	st33ktpm2xi2c: tpm@2e {
+		compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c";
+		reg = <0x2e>;
+		label = "tpm";
+		reset-gpios = <&pca6408 4 GPIO_ACTIVE_LOW>;
+	};
+
 	/* Capacitive touch controller */
 	ft5x06_ts: touchscreen@38 {
 		compatible = "edt,edt-ft5406";
-- 
2.47.3

[PATCH v3 10/11] arm64: dts: imx8mm-var-som-symphony: Enable I2C4

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Enable I2C4 on the Symphony carrier and add pinctrl configuration,
including GPIO-based bus recovery support.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - 

v1->v2:
 - 

 .../dts/freescale/imx8mm-var-som-symphony.dts | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index a77085b264e5..9a29c81b06eb 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -195,6 +195,16 @@ rtc@68 {
 	};
 };
 
+&i2c4 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	pinctrl-1 = <&pinctrl_i2c4_gpio>;
+	scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	status = "okay";
+};
+
 /* Header */
 &uart1 {
 	pinctrl-names = "default";
@@ -288,6 +298,20 @@ MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA		0x400001c3
 		>;
 	};
 
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_i2c4_gpio: i2c4gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C4_SCL_GPIO5_IO20	0x1c3
+			MX8MM_IOMUXC_I2C4_SDA_GPIO5_IO21	0x1c3
+		>;
+	};
+
 	pinctrl_pca9534: pca9534grp {
 		fsl,pins = <
 			MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7	0x16
-- 
2.47.3

[PATCH v3 11/11] arm64: dts: imx8mm-var-som-symphony: Enable PCIe

[Stefano Radaelli]

From: Stefano Radaelli <stefano.r@variscite.com>

From: Stefano Radaelli <stefano.r@variscite.com>

Enable PCIe support on the VAR-SOM Symphony carrier board by adding the
external reference clock, configuring the PHY and providing the required
clock and reset properties.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - Add clock-names porperty along with clocks

v1->v2:
 - 

 .../dts/freescale/imx8mm-var-som-symphony.dts | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 9a29c81b06eb..0ffee2d58122 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/phy/phy-imx8-pcie.h>
 #include "imx8mm-var-som.dtsi"
 #include "imx8mm-var-som-wifi-bt-iw61x.dtsi"
 
@@ -17,6 +18,12 @@ chosen {
 		stdout-path = &uart4;
 	};
 
+	pcie0_refclk: pcie0-refclk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <100000000>;
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -205,6 +212,29 @@ &i2c4 {
 	status = "okay";
 };
 
+&pcie_phy {
+	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
+	fsl,tx-deemph-gen1 = <0x2d>;
+	fsl,tx-deemph-gen2 = <0xf>;
+	fsl,clkreq-unsupported;
+	clocks = <&pcie0_refclk>;
+	clock-names = "ref";
+	status = "okay";
+};
+
+&pcie0 {
+	reset-gpio = <&pca6408 1 GPIO_ACTIVE_LOW>;
+	clocks = <&clk IMX8MM_CLK_PCIE1_ROOT>, <&pcie0_refclk>,
+		 <&clk IMX8MM_CLK_PCIE1_AUX>;
+	clock-names = "pcie", "pcie_bus", "pcie_aux";
+	assigned-clocks = <&clk IMX8MM_CLK_PCIE1_AUX>,
+			  <&clk IMX8MM_CLK_PCIE1_CTRL>;
+	assigned-clock-rates = <10000000>, <250000000>;
+	assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_50M>,
+				 <&clk IMX8MM_SYS_PLL2_250M>;
+	status = "okay";
+};
+
 /* Header */
 &uart1 {
 	pinctrl-names = "default";
-- 
2.47.3

Re: [PATCH v3 11/11] arm64: dts: imx8mm-var-som-symphony: Enable PCIe

[Frank Li]

On Sat, Mar 07, 2026 at 04:54:47PM +0100, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> Enable PCIe support on the VAR-SOM Symphony carrier board by adding the
> external reference clock, configuring the PHY and providing the required
> clock and reset properties.
>
> Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
> ---
...
>
> +&pcie_phy {
> +	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
> +	fsl,tx-deemph-gen1 = <0x2d>;
> +	fsl,tx-deemph-gen2 = <0xf>;
> +	fsl,clkreq-unsupported;

vendor property should last but just before status

Frank

>