* [PATCH v5 1/2] dt-bindings: arm: vt8500: Add VIA APC Rock/Paper boards
2025-04-25 15:02 [PATCH v5 0/2] ARM: vt8500: Add VIA APC Rock/Paper board Alexey Charkov
@ 2025-04-25 15:02 ` Alexey Charkov
2025-04-25 15:02 ` [PATCH v5 2/2] ARM: dts: vt8500: Add VIA APC Rock/Paper board Alexey Charkov
2025-04-28 6:57 ` [PATCH v5 0/2] ARM: " Krzysztof Kozlowski
2 siblings, 0 replies; 4+ messages in thread
From: Alexey Charkov @ 2025-04-25 15:02 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Krzysztof Kozlowski
Cc: devicetree, linux-kernel, linux-arm-kernel, Alexey Charkov,
Conor Dooley
APC Rock is a development board based on WonderMedia WM8950 SoC
released around 2013. Paper is the same as Rock but lacking a
VGA port and shipped with a recycled cardboard case.
While at that, put myself as the maintainer, given that Tony is
unavailable as of lately.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alexey Charkov <alchark@gmail.com>
---
Documentation/devicetree/bindings/arm/vt8500.yaml | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/vt8500.yaml b/Documentation/devicetree/bindings/arm/vt8500.yaml
index 5d5ad5a60451f569e6ef30c924a1964d02e1aa82..fa47b8989bbfb3001ae7bf6b6db4ef16132f047a 100644
--- a/Documentation/devicetree/bindings/arm/vt8500.yaml
+++ b/Documentation/devicetree/bindings/arm/vt8500.yaml
@@ -7,14 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: VIA/Wondermedia VT8500 Platforms
maintainers:
- - Tony Prisk <linux@prisktech.co.nz>
-description: test
+ - Alexey Charkov <alchark@gmail.com>
properties:
$nodename:
const: '/'
compatible:
- items:
+ oneOf:
- enum:
- via,vt8500
- wm,wm8505
@@ -22,4 +21,9 @@ properties:
- wm,wm8750
- wm,wm8850
+ - description: VIA APC Rock and Paper boards
+ items:
+ - const: via,apc-rock
+ - const: wm,wm8950
+
additionalProperties: true
--
2.49.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH v5 2/2] ARM: dts: vt8500: Add VIA APC Rock/Paper board
2025-04-25 15:02 [PATCH v5 0/2] ARM: vt8500: Add VIA APC Rock/Paper board Alexey Charkov
2025-04-25 15:02 ` [PATCH v5 1/2] dt-bindings: arm: vt8500: Add VIA APC Rock/Paper boards Alexey Charkov
@ 2025-04-25 15:02 ` Alexey Charkov
2025-04-28 6:57 ` [PATCH v5 0/2] ARM: " Krzysztof Kozlowski
2 siblings, 0 replies; 4+ messages in thread
From: Alexey Charkov @ 2025-04-25 15:02 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Krzysztof Kozlowski
Cc: devicetree, linux-kernel, linux-arm-kernel, Alexey Charkov
APC Rock is a development board based on WonderMedia WM8590 released
around 2013. Paper is the same board, but with the VGA port left
unpopulated, and shipped with a recycled cardboard case
Its hardware includes:
* Single-core Cortex-A9 CPU at 800 MHz
* 512MB DDR3 RAM
* 4GB NAND flash
* 8MB SPI NOR flash
* ARM Mali-400 GPU
* HDMI output (type A) capable of 1080p
* VGA output (on Rock, but not on Paper)
* 2x USB 2.0 type A
* 1x USB 2.0 OTG (microUSB connector)
* microSD slot
* 10/100M Ethernet
* 3.5mm minijack connector with combined headphones/mic
* Half-height miniPCIe slot (with only USB 2.0 signals)
Signed-off-by: Alexey Charkov <alchark@gmail.com>
---
arch/arm/boot/dts/vt8500/Makefile | 3 ++-
arch/arm/boot/dts/vt8500/wm8950-apc-rock.dts | 21 +++++++++++++++++++++
arch/arm/boot/dts/vt8500/wm8950.dtsi | 11 +++++++++++
3 files changed, 34 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/vt8500/Makefile b/arch/arm/boot/dts/vt8500/Makefile
index 255f4403af91c1d6a22416ab694b8eab44bf98a2..6fd29c41f3660d29d0368e4f8772d46b0a3c414c 100644
--- a/arch/arm/boot/dts/vt8500/Makefile
+++ b/arch/arm/boot/dts/vt8500/Makefile
@@ -4,4 +4,5 @@ dtb-$(CONFIG_ARCH_VT8500) += \
wm8505-ref.dtb \
wm8650-mid.dtb \
wm8750-apc8750.dtb \
- wm8850-w70v2.dtb
+ wm8850-w70v2.dtb \
+ wm8950-apc-rock.dtb
diff --git a/arch/arm/boot/dts/vt8500/wm8950-apc-rock.dts b/arch/arm/boot/dts/vt8500/wm8950-apc-rock.dts
new file mode 100644
index 0000000000000000000000000000000000000000..58b3c8deb4f20ae072bf1381f1dfa5e5adeb414a
--- /dev/null
+++ b/arch/arm/boot/dts/vt8500/wm8950-apc-rock.dts
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2025 Alexey Charkov <alchark@gmail.com>
+ */
+
+/dts-v1/;
+/include/ "wm8950.dtsi"
+
+/ {
+ model = "VIA APC Rock";
+ compatible = "via,apc-rock", "wm,wm8950";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x20000000>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/vt8500/wm8950.dtsi b/arch/arm/boot/dts/vt8500/wm8950.dtsi
new file mode 100644
index 0000000000000000000000000000000000000000..31fba05d3c3e70b21a64d08b5cdf645102a1faf3
--- /dev/null
+++ b/arch/arm/boot/dts/vt8500/wm8950.dtsi
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2025 Alexey Charkov <alchark@gmail.com>
+ */
+
+/* No differences have been discovered vs. WM8850, but chip markings differ */
+/include/ "wm8850.dtsi"
+
+/ {
+ compatible = "wm,wm8950";
+};
--
2.49.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH v5 0/2] ARM: vt8500: Add VIA APC Rock/Paper board
2025-04-25 15:02 [PATCH v5 0/2] ARM: vt8500: Add VIA APC Rock/Paper board Alexey Charkov
2025-04-25 15:02 ` [PATCH v5 1/2] dt-bindings: arm: vt8500: Add VIA APC Rock/Paper boards Alexey Charkov
2025-04-25 15:02 ` [PATCH v5 2/2] ARM: dts: vt8500: Add VIA APC Rock/Paper board Alexey Charkov
@ 2025-04-28 6:57 ` Krzysztof Kozlowski
2 siblings, 0 replies; 4+ messages in thread
From: Krzysztof Kozlowski @ 2025-04-28 6:57 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Krzysztof Kozlowski, Alexey Charkov
Cc: devicetree, linux-kernel, linux-arm-kernel, Conor Dooley
On Fri, 25 Apr 2025 19:02:21 +0400, Alexey Charkov wrote:
> Add binding and DTS for the WM8950 based VIA APC Rock board. Paper
> is the same board for all intents and purposes, so reflect it only
> in the binding description.
>
> Split the series from v1 into several chunks by topic so as not to
> spam all the subsystems with unrelated changes, per Rob's suggestion
>
> [...]
Applied, thanks!
[1/2] dt-bindings: arm: vt8500: Add VIA APC Rock/Paper boards
https://git.kernel.org/krzk/linux-dt/c/5ff150fc3755516937e7b1747722687ad4f75eae
[2/2] ARM: dts: vt8500: Add VIA APC Rock/Paper board
https://git.kernel.org/krzk/linux-dt/c/927e1b7ac361fa1a76fb29caa21853c9d8ba315a
Best regards,
--
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
^ permalink raw reply [flat|nested] 4+ messages in thread