[PATCH 0/5] ARM: Basic support for Amazon ford tablet (MT8127)

[PATCH 0/5] ARM: Basic support for Amazon ford tablet (MT8127)

[Zakariya Hadrami via B4 Relay]

This series of patches adds basic support for MT8127 SoC based Amazon ford
tablet and fixes a small indentation error in the dtsi file.

Signed-off-by: Zakariya Hadrami <zkh1@proton.me>
---
Zakariya Hadrami (5):
      ARM: dts: mediatek: mt8127: Fix indentation error
      ARM: dts: mediatek: mt8127: Add watchdog support
      ARM: dts: mediatek: Add basic support for Amazon ford board
      dt-bindings: arm: mediatek: Add MT8127 Amazon ford
      dt-bindings: watchdog: mediatek: Add MT8127

 .../devicetree/bindings/arm/mediatek.yaml          |  4 ++
 .../bindings/watchdog/mediatek,mtk-wdt.yaml        |  1 +
 arch/arm/boot/dts/mediatek/Makefile                |  1 +
 arch/arm/boot/dts/mediatek/mt8127-amazon-ford.dts  | 46 ++++++++++++++++++++++
 arch/arm/boot/dts/mediatek/mt8127.dtsi             |  9 ++++-
 5 files changed, 60 insertions(+), 1 deletion(-)
---
base-commit: 8cd9520d35a6c38db6567e97dd93b1f11f185dc6
change-id: 20260616-mt8127-amazon-ford-basic-1509d7052f7e

Best regards,
-- 
Zakariya Hadrami <zkh1@proton.me>

[PATCH 1/5] ARM: dts: mediatek: mt8127: Fix indentation error

[Zakariya Hadrami via B4 Relay]

From: Zakariya Hadrami <zkh1@proton.me>

Fix an indentation error caused by a space at the start of a line.

Signed-off-by: Zakariya Hadrami <zkh1@proton.me>
---
 arch/arm/boot/dts/mediatek/mt8127.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/mediatek/mt8127.dtsi b/arch/arm/boot/dts/mediatek/mt8127.dtsi
index aced173c2a52..bd61ec7e70c0 100644
--- a/arch/arm/boot/dts/mediatek/mt8127.dtsi
+++ b/arch/arm/boot/dts/mediatek/mt8127.dtsi
@@ -75,7 +75,7 @@ uart_clk: dummy26m {
 			compatible = "fixed-clock";
 			clock-frequency = <26000000>;
 			#clock-cells = <0>;
-                };
+		};
 	};
 
 	timer {

-- 
2.54.0

[PATCH 2/5] ARM: dts: mediatek: mt8127: Add watchdog support

[Zakariya Hadrami via B4 Relay]

From: Zakariya Hadrami <zkh1@proton.me>

Add watchdog node and disable it by default as it was not present
initially.

Signed-off-by: Zakariya Hadrami <zkh1@proton.me>
---
 arch/arm/boot/dts/mediatek/mt8127.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/mediatek/mt8127.dtsi b/arch/arm/boot/dts/mediatek/mt8127.dtsi
index bd61ec7e70c0..1855dda42710 100644
--- a/arch/arm/boot/dts/mediatek/mt8127.dtsi
+++ b/arch/arm/boot/dts/mediatek/mt8127.dtsi
@@ -159,5 +159,12 @@ uart3: serial@11005000 {
 			clocks = <&uart_clk>;
 			status = "disabled";
 		};
+
+		watchdog: watchdog@10007000 {
+			compatible = "mediatek,mt8127-wdt","mediatek,mt6589-wdt";
+			reg = <0 0x10007000 0 0x100>;
+			interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_LOW>;
+			status = "disabled";
+		};
 	};
 };

-- 
2.54.0

Re: [PATCH 2/5] ARM: dts: mediatek: mt8127: Add watchdog support

[sashiko-bot]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] Device tree nodes are not sorted by unit address.
--

commit 7452ca22e20f1d82f0774e2f81b86b3196a78313
Author: Zakariya Hadrami <zkh1@proton.me>
ARM: dts: mediatek: mt8127: Add watchdog support

This commit adds the watchdog node to the mt8127 device tree. It is
disabled by default since it was not present initially.

> diff --git a/arch/arm/boot/dts/mediatek/mt8127.dtsi b/arch/arm/boot/dts/mediatek/mt8127.dtsi
> index bd61ec7e70c0c..1855dda42710f 100644
> --- a/arch/arm/boot/dts/mediatek/mt8127.dtsi
> +++ b/arch/arm/boot/dts/mediatek/mt8127.dtsi
> @@ -159,5 +159,12 @@ uart3: serial@11005000 {
>  			clocks = <&uart_clk>;
>  			status = "disabled";
>  		};
> +
> +		watchdog: watchdog@10007000 {

[Severity: Low]
Should this node be sorted by its unit address? 

It looks like watchdog@10007000 is being placed after serial@11005000 at the
end of the soc node. Device tree styling conventions usually require sibling
nodes to be sorted in ascending order of their unit address, which would
place this earlier in the file (likely before timer@10008000).

> +			compatible = "mediatek,mt8127-wdt","mediatek,mt6589-wdt";
> +			reg = <0 0x10007000 0 0x100>;
> +			interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_LOW>;
> +			status = "disabled";
> +		};
>  	};
>  };

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260617-mt8127-amazon-ford-basic-v1-0-d02ad15ac359@proton.me?part=2

[PATCH 3/5] ARM: dts: mediatek: Add basic support for Amazon ford board

[Zakariya Hadrami via B4 Relay]

From: Zakariya Hadrami <zkh1@proton.me>

This tablet uses a MediaTek MT8127 system-on-chip with 1GB of RAM.
It can currently boot into initramfs with a working UART and
Simple Framebuffer using already initialized panel by the bootloader.

Signed-off-by: Zakariya Hadrami <zkh1@proton.me>
---
 arch/arm/boot/dts/mediatek/Makefile               |  1 +
 arch/arm/boot/dts/mediatek/mt8127-amazon-ford.dts | 46 +++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/arch/arm/boot/dts/mediatek/Makefile b/arch/arm/boot/dts/mediatek/Makefile
index 37c4cded0eae..a610bc75c7d9 100644
--- a/arch/arm/boot/dts/mediatek/Makefile
+++ b/arch/arm/boot/dts/mediatek/Makefile
@@ -14,5 +14,6 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt7623n-rfb-emmc.dtb \
 	mt7623n-bananapi-bpi-r2.dtb \
 	mt7629-rfb.dtb \
+	mt8127-amazon-ford.dtb \
 	mt8127-moose.dtb \
 	mt8135-evbp1.dtb
diff --git a/arch/arm/boot/dts/mediatek/mt8127-amazon-ford.dts b/arch/arm/boot/dts/mediatek/mt8127-amazon-ford.dts
new file mode 100644
index 000000000000..21bdab0e43f8
--- /dev/null
+++ b/arch/arm/boot/dts/mediatek/mt8127-amazon-ford.dts
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+#include "mt8127.dtsi"
+
+/ {
+	model = "MediaTek MT8127 Amazon Ford";
+	compatible = "amazon,ford", "mediatek,mt8127";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:921600n8";
+
+		framebuffer0: framebuffer@b7a00000 {
+			compatible = "simple-framebuffer";
+			memory-region = <&framebuffer_reserved>;
+			width = <1024>;
+			height = <600>;
+			stride = <(1024 * 2)>;
+			format = "r5g6b5";
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0 0x80000000 0 0x40000000>;
+	};
+
+	reserved-memory {
+		framebuffer_reserved: framebuffer@b7a00000 {
+			reg = <0 0xb7a00000 0 0x1000000>;
+			no-map;
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};

-- 
2.54.0

[PATCH 4/5] dt-bindings: arm: mediatek: Add MT8127 Amazon ford

[Zakariya Hadrami via B4 Relay]

From: Zakariya Hadrami <zkh1@proton.me>

Add entry for the MT8127 based Amazon ford tablet.

Signed-off-by: Zakariya Hadrami <zkh1@proton.me>
---
 Documentation/devicetree/bindings/arm/mediatek.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index 382d0eb4d0af..5ddc79689df9 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -124,6 +124,10 @@ properties:
           - enum:
               - mediatek,mt8127-moose
           - const: mediatek,mt8127
+      - items:
+          - enum:
+              - amazon,ford
+          - const: mediatek,mt8127
       - items:
           - enum:
               - mediatek,mt8135-evbp1

-- 
2.54.0

Re: [PATCH 4/5] dt-bindings: arm: mediatek: Add MT8127 Amazon ford

[sashiko-bot]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] The device tree compatible block for `amazon,ford` is incorrectly sorted. The file specifies that entries should be sorted by SoC compatible and then alphabetically by board compatible. Because `amazon,ford` and `mediatek,mt8127-moose` share the same SoC compatible (`mediatek,mt8127`), `amazon,ford` should be placed before `mediatek,mt8127-moose`.
--

commit 5d4dd6329b44b144dcfbe78c4a1cf82524b51ef6
Author: Zakariya Hadrami <zkh1@proton.me>

dt-bindings: arm: mediatek: Add MT8127 Amazon ford

This commit adds the device tree binding for the Amazon ford tablet based
on the MediaTek MT8127 SoC.

> diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
> index 382d0eb4d0af6..5ddc79689df91 100644
> --- a/Documentation/devicetree/bindings/arm/mediatek.yaml
> +++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
> @@ -124,6 +124,10 @@ properties:
>            - enum:
>                - mediatek,mt8127-moose
>            - const: mediatek,mt8127
> +      - items:
> +          - enum:
> +              - amazon,ford
> +          - const: mediatek,mt8127

[Severity: Low]
This isn't a bug, but should the amazon,ford board compatible block be
inserted alphabetically before mediatek,mt8127-moose? Since both share the
mediatek,mt8127 SoC compatible, sorting alphabetically by the board
compatible would usually place amazon,ford first.

>        - items:
>            - enum:
>                - mediatek,mt8135-evbp1

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260617-mt8127-amazon-ford-basic-v1-0-d02ad15ac359@proton.me?part=4

[PATCH 5/5] dt-bindings: watchdog: mediatek: Add MT8127

[Zakariya Hadrami via B4 Relay]

From: Zakariya Hadrami <zkh1@proton.me>

Add entry for MT8127 SoC's watchdog which is compatible with MT6589's
one.

Signed-off-by: Zakariya Hadrami <zkh1@proton.me>
---
 Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
index 953629cb9558..e6e4546da0aa 100644
--- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
@@ -40,6 +40,7 @@ properties:
               - mediatek,mt7622-wdt
               - mediatek,mt7623-wdt
               - mediatek,mt7629-wdt
+              - mediatek,mt8127-wdt
               - mediatek,mt8173-wdt
               - mediatek,mt8188-wdt
               - mediatek,mt8189-wdt

-- 
2.54.0