[PATCH v4 0/4] arm64: dts: amlogic: meson-axg: NAND fix and PCIe PHY adjustment

[PATCH v4 0/4] arm64: dts: amlogic: meson-axg: NAND fix and PCIe PHY adjustment

[Jun Yan]

- Disable nfc node by default ahead of nand_rb0 pin addition.
- Add missing nand_rb0 pin to fix incomplete NAND pinctrl.
- Disable pcie_phy by default to suppress probe warning.
- Re-enable pcie_phy on S400 board to preserve PCIe functionality.
- Enable mipi_pcie_analog_dphy for PCIe on S400 board.

Changes in v4:
- Add patch to enable mipi_pcie_analog_dphy for PCIe on S400 board.
- Link to v3:
  https://lore.kernel.org/all/20260617082239.645562-1-jerrysteve1101@gmail.com/

Changes in v3:
- squash "disable pcie_phy node by default" and "enable pcie_phy in 
  meson-axg-s400" patches
- Link to v2:
  https://lore.kernel.org/all/20260617071604.635627-1-jerrysteve1101@gmail.com/

Changes in v2:
- Add patch to disable nfc node by default.
- Link to v1:
  https://lore.kernel.org/all/20260529140605.1070764-1-jerrysteve1101@gmail.com/

Jun Yan (4):
  arm64: dts: amlogic: meson-axg: Disable nfc node by default
  arm64: dts: amlogic: meson-axg: Add missing nand_rb0 pin to
    nand_all_pins
  arm64: dts: amlogic: meson-axg: Disable pcie_phy node by default
  arm64: dts: amlogic: meson-axg-s400: enable mipi_pcie_analog_dphy for
    PCIe

 arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 8 ++++++++
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi     | 5 ++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

-- 
2.54.0


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[PATCH v4 1/4] arm64: dts: amlogic: meson-axg: Disable nfc node by default

[Jun Yan]

nand_rb0 and emmc_ds share one pad. Before enabling nand_rb0 for nfc,
disable nfc nodes by default to resolve pinctrl resource contention.

No mainline AXG boards enable nfc currently thus no extra DTS adjustments
are needed.

Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index f1f53fd98ae2..6457667d974e 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -1999,6 +1999,7 @@ nfc: nand-controller@7800 {
 				clocks = <&clkc CLKID_SD_EMMC_C>,
 					 <&clkc CLKID_FCLK_DIV2>;
 				clock-names = "core", "device";
+				status = "disabled";
 			};
 
 			usb2_phy1: phy@9020 {
-- 
2.54.0


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[PATCH v4 2/4] arm64: dts: amlogic: meson-axg: Add missing nand_rb0 pin to nand_all_pins

[Jun Yan]

The nand_all_pins pinctrl node was missing the nand_rb0 (ready/busy)
pin description, which is required for NAND controller operation.

Add it to the pinmux list.

Fixes: be18d53c32b2 ("arm64: dts: amlogic: meson-axg: pinctrl node for NAND")
Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 6457667d974e..8ca3ac09b306 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -481,7 +481,8 @@ mux {
 							 "nand_ale",
 							 "nand_cle",
 							 "nand_wen_clk",
-							 "nand_ren_wr";
+							 "nand_ren_wr",
+							 "nand_rb0";
 						function = "nand";
 						input-enable;
 						bias-pull-up;
-- 
2.54.0


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[PATCH v4 3/4] arm64: dts: amlogic: meson-axg: Disable pcie_phy node by default

[Jun Yan]

Set the pcie_phy node to "disabled" as it is not used on some boards
and should be enabled per-board when necessary.

This change suppresses the deferred probe warning:

platform ff644000.phy: deferred probe pending: (reason unknown)

The meson-axg dtsi now disables pcie_phy by default, so enable it
for the s400 board to support PCIe functionality.

Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 4 ++++
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi     | 1 +
 2 files changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
index 285c6ac1dd61..7ba249cc3d56 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -448,6 +448,10 @@ &pcieB {
 	status = "okay";
 };
 
+&pcie_phy {
+	status = "okay";
+};
+
 &pwm_ab {
 	status = "okay";
 	pinctrl-0 = <&pwm_a_x20_pins>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 8ca3ac09b306..5b8ef98f6d03 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -328,6 +328,7 @@ pcie_phy: phy@ff644000 {
 			phys = <&mipi_pcie_analog_dphy>;
 			phy-names = "analog";
 			#phy-cells = <0>;
+			status = "disabled";
 		};
 
 		pdm: audio-controller@ff632000 {
-- 
2.54.0


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[PATCH v4 4/4] arm64: dts: amlogic: meson-axg-s400: enable mipi_pcie_analog_dphy for PCIe

[Jun Yan]

The PCIe PHY node references mipi_pcie_analog_dphy via its phys property.
Enable this analog PHY node to make PCIe functionally viable.

Fixes: 9715b01da6cf ("arm64: dts: meson-axg-s400: enable PCIe M.2 Key E slots")
Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
index 7ba249cc3d56..4f13e2b041e1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -431,6 +431,10 @@ gpio_speaker: gpio-controller@1f {
 	};
 };
 
+&mipi_pcie_analog_dphy {
+	status = "okay";
+};
+
 &pdm {
 	pinctrl-0 = <&pdm_dclk_a14_pins>, <&pdm_din0_pins>,
 		    <&pdm_din1_pins>, <&pdm_din2_pins>, <&pdm_din3_pins>;
-- 
2.54.0


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Re: [PATCH v4 1/4] arm64: dts: amlogic: meson-axg: Disable nfc node by default

[Martin Blumenstingl]

On Wed, Jun 24, 2026 at 3:57 PM Jun Yan <jerrysteve1101@gmail.com> wrote:
>
> nand_rb0 and emmc_ds share one pad. Before enabling nand_rb0 for nfc,
> disable nfc nodes by default to resolve pinctrl resource contention.
>
> No mainline AXG boards enable nfc currently thus no extra DTS adjustments
> are needed.
>
> Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

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Re: [PATCH v4 2/4] arm64: dts: amlogic: meson-axg: Add missing nand_rb0 pin to nand_all_pins

[Martin Blumenstingl]

On Wed, Jun 24, 2026 at 3:57 PM Jun Yan <jerrysteve1101@gmail.com> wrote:
>
> The nand_all_pins pinctrl node was missing the nand_rb0 (ready/busy)
> pin description, which is required for NAND controller operation.
>
> Add it to the pinmux list.
>
> Fixes: be18d53c32b2 ("arm64: dts: amlogic: meson-axg: pinctrl node for NAND")
> Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

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Re: [PATCH v4 3/4] arm64: dts: amlogic: meson-axg: Disable pcie_phy node by default

[Martin Blumenstingl]

On Wed, Jun 24, 2026 at 3:57 PM Jun Yan <jerrysteve1101@gmail.com> wrote:
>
> Set the pcie_phy node to "disabled" as it is not used on some boards
> and should be enabled per-board when necessary.
>
> This change suppresses the deferred probe warning:
>
> platform ff644000.phy: deferred probe pending: (reason unknown)
>
> The meson-axg dtsi now disables pcie_phy by default, so enable it
> for the s400 board to support PCIe functionality.
>
> Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

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Re: [PATCH v4 4/4] arm64: dts: amlogic: meson-axg-s400: enable mipi_pcie_analog_dphy for PCIe

[Martin Blumenstingl]

On Wed, Jun 24, 2026 at 3:58 PM Jun Yan <jerrysteve1101@gmail.com> wrote:
>
> The PCIe PHY node references mipi_pcie_analog_dphy via its phys property.
> Enable this analog PHY node to make PCIe functionally viable.
>
> Fixes: 9715b01da6cf ("arm64: dts: meson-axg-s400: enable PCIe M.2 Key E slots")
> Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

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