[PATCH v2 0/3] arm64: dts: freescale: moduline-display: several fixes

[PATCH v2 0/3] arm64: dts: freescale: moduline-display: several fixes

[Maud Spierings via B4 Relay]

A couple of issues where discovered:
- compatibles should integrate the SoM
- the eqos mac address is stored in eth_mac1

The first one is breaking, but it is early enough that it can be
corrected without causing any issues.

Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
---
Changes in v2:
- re-add the old compatible to fsl.yaml
- expand the reasoning for these changes in the commit messages
- Link to v1: https://lore.kernel.org/r/20251114-disp_fix-v1-0-49cbe826afc2@gocontroll.com

---
Maud Spierings (3):
      dt-bindings: arm: fsl: moduline-display: fix compatible
      arm64: dts: freescale: moduline-display: fix compatible
      arm64: dts: freescale: tx8p-ml81: fix eqos nvmem-cells

 Documentation/devicetree/bindings/arm/fsl.yaml                   | 9 ++++++++-
 .../boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts | 2 +-
 arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi              | 5 +++++
 3 files changed, 14 insertions(+), 2 deletions(-)
---
base-commit: 0f2995693867bfb26197b117cd55624ddc57582f
change-id: 20251114-disp_fix-2c90d35ab0dd

Best regards,
-- 
Maud Spierings <maudspierings@gocontroll.com>

[PATCH v2 1/3] dt-bindings: arm: fsl: moduline-display: fix compatible

[Maud Spierings via B4 Relay]

From: Maud Spierings <maudspierings@gocontroll.com>

The compatibles should include the SoM compatible, this board is based
on the Ka-Ro TX8P-ML81 SoM, so add it to allow using shared code in the
bootloader which uses upstream Linux devicetrees as a base.

Also add the hardware revision to the board compatible to handle
revision specific quirks in the bootloader/userspace.

This is a breaking change, but it is early enough that it can be
corrected without causing any issues.

Fixes: 24e67d28ef95 ("dt-bindings: arm: fsl: Add GOcontroll Moduline Display")
Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 21b7168d61f5..0aeac16843b5 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -1105,7 +1105,6 @@ properties:
               - gateworks,imx8mp-gw74xx   # i.MX8MP Gateworks Board
               - gateworks,imx8mp-gw75xx-2x # i.MX8MP Gateworks Board
               - gateworks,imx8mp-gw82xx-2x # i.MX8MP Gateworks Board
-              - gocontroll,moduline-display # GOcontroll Moduline Display controller
               - prt,prt8ml             # Protonic PRT8ML
               - skov,imx8mp-skov-basic # SKOV i.MX8MP baseboard without frontplate
               - skov,imx8mp-skov-revb-hdmi # SKOV i.MX8MP climate control without panel
@@ -1163,6 +1162,14 @@ properties:
           - const: engicam,icore-mx8mp             # i.MX8MP Engicam i.Core MX8M Plus SoM
           - const: fsl,imx8mp
 
+      - description: Ka-Ro TX8P-ML81 SoM based boards
+        items:
+          - enum:
+              - gocontroll,moduline-display
+              - gocontroll,moduline-display-106
+          - const: karo,tx8p-ml81
+          - const: fsl,imx8mp
+
       - description: Kontron i.MX8MP OSM-S SoM based Boards
         items:
           - const: kontron,imx8mp-bl-osm-s  # Kontron BL i.MX8MP OSM-S Board

-- 
2.52.0

[PATCH v2 2/3] arm64: dts: freescale: moduline-display: fix compatible

[Maud Spierings via B4 Relay]

From: Maud Spierings <maudspierings@gocontroll.com>

The compatibles should include the SoM compatible, this board is based
on the Ka-Ro TX8P-ML81 SoM, so add it to allow using shared code in the
bootloader which uses upstream Linux devicetrees as a base.

Also add the hardware revision to the board compatible to handle
revision specific quirks in the bootloader/userspace.

This is a breaking change, but it is early enough that it can be
corrected without causing any issues.

Fixes: 03f07be54cdc ("arm64: dts: freescale: Add the GOcontroll Moduline Display baseboard")
Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts
index 88ad422c2760..399230144ce3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts
@@ -9,7 +9,7 @@
 #include "imx8mp-tx8p-ml81.dtsi"
 
 / {
-	compatible = "gocontroll,moduline-display", "fsl,imx8mp";
+	compatible = "gocontroll,moduline-display-106", "karo,tx8p-ml81", "fsl,imx8mp";
 	chassis-type = "embedded";
 	hardware = "Moduline Display V1.06";
 	model = "GOcontroll Moduline Display baseboard";

-- 
2.52.0

[PATCH v2 3/3] arm64: dts: freescale: tx8p-ml81: fix eqos nvmem-cells

[Maud Spierings via B4 Relay]

From: Maud Spierings <maudspierings@gocontroll.com>

On this SoM eqos is the primary ethernet interface, Ka-Ro fuses the
address for it in eth_mac1, eth_mac2 seems to be left unfused. In their
downstream u-boot they fetch it from eth_mac1 [1][2], by setting alias
of eqos to ethernet0, the driver then fetches the mac address based on
the alias number.

Set eqos to read from eth_mac1 instead of eth_mac2. Also set fec to
point at eth_mac2 as it may be fused later even though it is disabled
by default.

With this changed barebox is now capable of loading the correct address.

Link: https://github.com/karo-electronics/karo-tx-uboot/blob/380543278410bbf04264d80a3bfbe340b8e62439/drivers/net/dwc_eth_qos.c#L1167 [1]
Link: https://github.com/karo-electronics/karo-tx-uboot/blob/380543278410bbf04264d80a3bfbe340b8e62439/arch/arm/dts/imx8mp-karo.dtsi#L12 [2]

Fixes: bac63d7c5f46 ("arm64: dts: freescale: add Ka-Ro Electronics tx8p-ml81 COM")
Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
index fe8ba16eb40e..761ee046eb72 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
@@ -47,6 +47,7 @@ &eqos {
 				 <&clk IMX8MP_SYS_PLL2_100M>,
 				 <&clk IMX8MP_SYS_PLL2_50M>;
 	assigned-clock-rates = <266000000>, <100000000>, <50000000>;
+	nvmem-cells = <&eth_mac1>;
 	phy-handle = <&ethphy0>;
 	phy-mode = "rmii";
 	pinctrl-0 = <&pinctrl_eqos>;
@@ -75,6 +76,10 @@ ethphy0: ethernet-phy@0 {
 	};
 };
 
+&fec {
+	nvmem-cells = <&eth_mac2>;
+};
+
 &gpio1 {
 	gpio-line-names = "SODIMM_152",
 			  "SODIMM_42",

-- 
2.52.0

Re: [PATCH v2 1/3] dt-bindings: arm: fsl: moduline-display: fix compatible

[Krzysztof Kozlowski]

On Mon, Dec 01, 2025 at 12:56:50PM +0100, Maud Spierings wrote:
> The compatibles should include the SoM compatible, this board is based
> on the Ka-Ro TX8P-ML81 SoM, so add it to allow using shared code in the
> bootloader which uses upstream Linux devicetrees as a base.
> 
> Also add the hardware revision to the board compatible to handle
> revision specific quirks in the bootloader/userspace.
> 
> This is a breaking change, but it is early enough that it can be
> corrected without causing any issues.
> 
> Fixes: 24e67d28ef95 ("dt-bindings: arm: fsl: Add GOcontroll Moduline Display")
> Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
> ---
>  Documentation/devicetree/bindings/arm/fsl.yaml | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

Re: [PATCH v2 0/3] arm64: dts: freescale: moduline-display: several fixes

[Shawn Guo]

On Mon, Dec 01, 2025 at 12:56:49PM +0100, Maud Spierings via B4 Relay wrote:
> A couple of issues where discovered:
> - compatibles should integrate the SoM
> - the eqos mac address is stored in eth_mac1
> 
> The first one is breaking, but it is early enough that it can be
> corrected without causing any issues.
> 
> Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
> ---
> Changes in v2:
> - re-add the old compatible to fsl.yaml
> - expand the reasoning for these changes in the commit messages
> - Link to v1: https://lore.kernel.org/r/20251114-disp_fix-v1-0-49cbe826afc2@gocontroll.com
> 
> ---
> Maud Spierings (3):
>       dt-bindings: arm: fsl: moduline-display: fix compatible
>       arm64: dts: freescale: moduline-display: fix compatible
>       arm64: dts: freescale: tx8p-ml81: fix eqos nvmem-cells

Applied all, thanks!