[PATCH 0/4] ARM: dts: TQMa6: modify for use in bootloaders

[PATCH 0/4] ARM: dts: TQMa6: modify for use in bootloaders

[Max Merchel]

This series contains modifications for using Linux device trees
in bootloaders. Changes from U-Boot bootloader are incorporated
directly into the Linux device trees.

Max Merchel (4):
  ARM: dts: imx6qdl-tqma6: add missing labels
  ARM: dts: imx6qdl: add boot phase properties
  ARM: dts: imx6qdl-tqma6: add boot phase properties
  ARM: dts: imx6qdl-mba6: add boot phase properties

 arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi   | 12 ++++++++++++
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi  | 11 +++++++++++
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi |  5 +++--
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi |  6 ++++--
 arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi        |  6 ++++++
 5 files changed, 36 insertions(+), 4 deletions(-)

-- 
2.43.0

[PATCH 1/4] ARM: dts: imx6qdl-tqma6: add missing labels

[Max Merchel]

Add the missing labels for the temperature sensor and the EEPROM.
In SoM variants A and B, the components are connected to different
I2C buses. These labels are needed to reference them in subsequent
device trees.

Signed-off-by: Max Merchel <Max.Merchel@ew.tq-group.com>
---
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi | 4 ++--
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi
index e8fd37dd8835..1251749a8dd0 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi
@@ -27,13 +27,13 @@ pmic: pmic@8 {
 		reg = <0x08>;
 	};
 
-	temperature-sensor@48 {
+	lm75_48: temperature-sensor@48 {
 		compatible = "national,lm75a";
 		reg = <0x48>;
 		vs-supply = <&sw4_reg>;
 	};
 
-	eeprom@50 {
+	m24c64_50: eeprom@50 {
 		compatible = "st,24c64", "atmel,24c64";
 		reg = <0x50>;
 		pagesize = <32>;
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi
index 0e404c1f62f2..7f526f39e0f2 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi
@@ -20,13 +20,13 @@ pmic: pmic@8 {
 		reg = <0x08>;
 	};
 
-	temperature-sensor@48 {
+	lm75_48: temperature-sensor@48 {
 		compatible = "national,lm75a";
 		reg = <0x48>;
 		vs-supply = <&sw4_reg>;
 	};
 
-	eeprom@50 {
+	m24c64_50: eeprom@50 {
 		compatible = "st,24c64", "atmel,24c64";
 		reg = <0x50>;
 		pagesize = <32>;
-- 
2.43.0

[PATCH 2/4] ARM: dts: imx6qdl: add boot phase properties

[Max Merchel]

Add boot phase properties from U-Boot device tree.

Signed-off-by: Max Merchel <Max.Merchel@ew.tq-group.com>
---
 arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi
index 76e6043e1f91..1fcfe0751327 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi
@@ -149,6 +149,7 @@ soc: soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&gpc>;
 		ranges;
+		bootph-all;
 
 		dma_apbh: dma-controller@110000 {
 			compatible = "fsl,imx6q-dma-apbh", "fsl,imx28-dma-apbh";
@@ -297,6 +298,7 @@ aips1: bus@2000000 { /* AIPS1 */
 			#size-cells = <1>;
 			reg = <0x02000000 0x100000>;
 			ranges;
+			bootph-pre-ram;
 
 			spba-bus@2000000 {
 				compatible = "fsl,spba-bus", "simple-bus";
@@ -304,6 +306,7 @@ spba-bus@2000000 {
 				#size-cells = <1>;
 				reg = <0x02000000 0x40000>;
 				ranges;
+				bootph-pre-ram;
 
 				spdif: spdif@2004000 {
 					compatible = "fsl,imx35-spdif";
@@ -920,6 +923,7 @@ mux: mux-controller {
 			iomuxc: pinctrl@20e0000 {
 				compatible = "fsl,imx6dl-iomuxc", "fsl,imx6q-iomuxc";
 				reg = <0x20e0000 0x4000>;
+				bootph-pre-ram;
 			};
 
 			dcic1: dcic@20e4000 {
@@ -950,6 +954,7 @@ aips2: bus@2100000 { /* AIPS2 */
 			#size-cells = <1>;
 			reg = <0x02100000 0x100000>;
 			ranges;
+			bootph-pre-ram;
 
 			crypto: crypto@2100000 {
 				compatible = "fsl,sec-v4.0";
@@ -1320,6 +1325,7 @@ ipu1: ipu@2400000 {
 				 <&clks IMX6QDL_CLK_IPU1_DI1>;
 			clock-names = "bus", "di0", "di1";
 			resets = <&src 2>;
+			bootph-all;
 
 			ipu1_csi0: port@0 {
 				reg = <0>;
-- 
2.43.0

[PATCH 3/4] ARM: dts: imx6qdl-tqma6: add boot phase properties

[Max Merchel]

Add boot phase properties to TQMa6 device trees.

Signed-off-by: Max Merchel <Max.Merchel@ew.tq-group.com>
---
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi  | 11 +++++++++++
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi |  1 +
 arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi |  2 ++
 3 files changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi
index 07492f63a1f8..14676d1d905a 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi
@@ -11,6 +11,7 @@ &ecspi1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi1>;
 	cs-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;
+	bootph-pre-ram;
 	status = "okay";
 
 	m25p80: flash@0 {
@@ -19,6 +20,7 @@ m25p80: flash@0 {
 		spi-max-frequency = <50000000>;
 		vcc-supply = <&sw4_reg>;
 		m25p,fast-read;
+		bootph-pre-ram;
 
 		partitions {
 			compatible = "fixed-partitions";
@@ -28,6 +30,10 @@ partitions {
 	};
 };
 
+&gpio3 {
+	bootph-pre-ram;
+};
+
 &iomuxc {
 	pinctrl_ecspi1: ecspi1grp {
 		fsl,pins = <
@@ -38,6 +44,7 @@ MX6QDL_PAD_EIM_D16__ECSPI1_SCLK 0xb099
 			 /* eCSPI1 SS1 */
 			MX6QDL_PAD_EIM_D19__GPIO3_IO19 0xb099
 		>;
+		bootph-pre-ram;
 	};
 
 	pinctrl_i2c1: i2c1grp {
@@ -45,6 +52,7 @@ pinctrl_i2c1: i2c1grp {
 			MX6QDL_PAD_CSI0_DAT8__I2C1_SDA 0x4001b899
 			MX6QDL_PAD_CSI0_DAT9__I2C1_SCL 0x4001b899
 		>;
+		bootph-pre-ram;
 	};
 
 	pinctrl_i2c1_recovery: i2c1recoverygrp {
@@ -73,6 +81,7 @@ MX6QDL_PAD_SD3_DAT5__SD3_DATA5 0x17059
 			MX6QDL_PAD_SD3_DAT6__SD3_DATA6 0x17059
 			MX6QDL_PAD_SD3_DAT7__SD3_DATA7 0x17059
 		>;
+		bootph-all;
 	};
 };
 
@@ -117,6 +126,7 @@ sw4_reg: sw4 {
 			regulator-min-microvolt = <3300000>;
 			regulator-max-microvolt = <3300000>;
 			regulator-always-on;
+			bootph-pre-ram;
 		};
 
 		reg_5v_600mA: swbst {
@@ -186,6 +196,7 @@ &usdhc3 {
 	bus-width = <8>;
 	#address-cells = <1>;
 	#size-cells = <0>;
+	bootph-all;
 	status = "okay";
 
 	mmccard: mmccard@0 {
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi
index 1251749a8dd0..67f8f59aff5a 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi
@@ -20,6 +20,7 @@ &i2c1 {
 	scl-gpios = <&gpio5 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	sda-gpios = <&gpio5 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	clock-frequency = <100000>;
+	bootph-pre-ram;
 	status = "okay";
 
 	pmic: pmic@8 {
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi
index 7f526f39e0f2..db552802554d 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi
@@ -13,6 +13,7 @@ &i2c3 {
 	scl-gpios = <&gpio1 5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	sda-gpios = <&gpio1 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	clock-frequency = <100000>;
+	bootph-pre-ram;
 	status = "okay";
 
 	pmic: pmic@8 {
@@ -40,6 +41,7 @@ pinctrl_i2c3: i2c3grp {
 			MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b899
 			MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b899
 		>;
+		bootph-pre-ram;
 	};
 
 	pinctrl_i2c3_recovery: i2c3recoverygrp {
-- 
2.43.0

[PATCH 4/4] ARM: dts: imx6qdl-mba6: add boot phase properties

[Max Merchel]

Add boot phase properties to MBa6 device tree.

Signed-off-by: Max Merchel <Max.Merchel@ew.tq-group.com>
---
 arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi
index ee2c6bec92e8..74ccfe56828f 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi
@@ -206,6 +206,10 @@ ethphy: ethernet-phy@3 {
 	};
 };
 
+&gpio1 {
+	bootph-pre-ram;
+};
+
 &hdmi {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_hdmi>;
@@ -214,6 +218,8 @@ &hdmi {
 };
 
 &i2c1 {
+	bootph-pre-ram;
+
 	tlv320aic32x4: audio-codec@18 {
 		compatible = "ti,tlv320aic32x4";
 		reg = <0x18>;
@@ -274,6 +280,7 @@ &ssi1 {
 &uart2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart2>;
+	bootph-pre-ram;
 	status = "okay";
 };
 
@@ -346,6 +353,7 @@ &usdhc2 {
 	no-sdio;
 	cd-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
 	wp-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+	bootph-all;
 	status = "okay";
 };
 
@@ -354,6 +362,7 @@ &wdog1 {
 	pinctrl-0 = <&pinctrl_wdog1>;
 	/* does not work on unmodified starter kit */
 	/* fsl,ext-reset-output; */
+	bootph-pre-ram;
 	status = "okay";
 };
 
@@ -544,6 +553,7 @@ pinctrl_uart2: uart2grp {
 			MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA 0x1b099
 			MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA 0x1b099
 		>;
+		bootph-pre-ram;
 	};
 
 	pinctrl_uart3: uart3grp {
@@ -587,6 +597,7 @@ MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x00017059
 			MX6QDL_PAD_GPIO_4__GPIO1_IO04  0x0001b099 /* usdhc2 CD */
 			MX6QDL_PAD_GPIO_2__GPIO1_IO02  0x0001b099 /* usdhc2 WP */
 		>;
+		bootph-all;
 	};
 
 	pinctrl_usbotg: usbotggrp {
@@ -602,5 +613,6 @@ pinctrl_wdog1: wdog1grp {
 			 /* Watchdog out */
 			MX6QDL_PAD_SD1_DAT2__WDOG1_B 0x0000b099
 		>;
+		bootph-pre-ram;
 	};
 };
-- 
2.43.0

Re: [PATCH 0/4] ARM: dts: TQMa6: modify for use in bootloaders

[Frank Li]

On Wed, Feb 18, 2026 at 02:22:21PM +0100, Max Merchel wrote:
> This series contains modifications for using Linux device trees
> in bootloaders. Changes from U-Boot bootloader are incorporated
> directly into the Linux device trees.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
>
> Max Merchel (4):
>   ARM: dts: imx6qdl-tqma6: add missing labels
>   ARM: dts: imx6qdl: add boot phase properties
>   ARM: dts: imx6qdl-tqma6: add boot phase properties
>   ARM: dts: imx6qdl-mba6: add boot phase properties
>
>  arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi   | 12 ++++++++++++
>  arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6.dtsi  | 11 +++++++++++
>  arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6a.dtsi |  5 +++--
>  arch/arm/boot/dts/nxp/imx/imx6qdl-tqma6b.dtsi |  6 ++++--
>  arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi        |  6 ++++++
>  5 files changed, 36 insertions(+), 4 deletions(-)
>
> --
> 2.43.0
>

Re: [PATCH 1/4] ARM: dts: imx6qdl-tqma6: add missing labels

[Krzysztof Kozlowski]

On 18/02/2026 14:22, Max Merchel wrote:
> Add the missing labels for the temperature sensor and the EEPROM.
> In SoM variants A and B, the components are connected to different
> I2C buses. These labels are needed to reference them in subsequent
> device trees.

That's not a change on its own. It makes no impact, no effect and is
confusing because unused labels shall be removed.

So you apply this patch and immediately revert it because these labels
are unused.

No, squash it instead with the USER of the label.

Best regards,
Krzysztof