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99545b4bb1
This target adds support for the Allwinner D1 RISC-V based SoCs.
- RISC-V single-core T-Head C906 (RV64GCV)
- Tensilica HiFi4 DSP
- DDR2/DDR3 support
- 10/100/1000M ethernet
- usual peripherals like USB2, SPI, I2C, PWM, etc.
Four boards are supported:
- Dongshan Nezha STU
- 512Mb RAM
- ethernet
- LicheePi RV Dock
- 512Mb RAM
- wireless-only (RTL8723DS)
- MangoPi MQ-Pro
- 512Mb RAM
- there are pads available for an SPI flash
- wireless-only (RTL8723DS)
- Nezha D1
- 512Mb/1Gb/2Gb RAM
- 256Mb NAND flash
- ethernet, wireless
Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
180 lines
4.6 KiB
Diff
180 lines
4.6 KiB
Diff
From 31857adcc9db7244a047a3a3550219f7559d8846 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Wed, 4 Aug 2021 21:36:26 -0500
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Subject: [PATCH 054/117] dt-bindings: leds: Add Allwinner A100 LED controller
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The Allwinner A100, R329, and D1 SoCs contain an LED controller designed
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to drive a series of RGB LED pixels. It supports PIO and DMA transfers,
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and has configurable timing and pixel format. All three implementations
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appear to be identical, so use the oldest as the fallback compatible.
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Series-changes: 2
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- Fixed typo leading to duplicate t1h-ns property
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- Removed "items" layer in definition of dmas/dma-names
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- Replaced uint32 type reference with maxItems in timing properties
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Series-changes: 3
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- Removed quotes from enumeration values
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- Added vendor prefix to timing/format properties
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- Renamed "format" property to "pixel-format" for clarity
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- Dropped "vled-supply" as it is unrelated to the controller hardware
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Series-changes: 4
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- Use "default" instead of "maxItems" for timing properties
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Series-changes: 5
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- A100 contains the original implementation, so use that as the base
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compatible string, and rename the binding to match
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- Add "unevaluatedProperties: false" to the child multi-led binding
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Acked-by: Maxime Ripard <maxime@cerno.tech>
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Reviewed-by: Rob Herring <robh@kernel.org>
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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.../leds/allwinner,sun50i-a100-ledc.yaml | 139 ++++++++++++++++++
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1 file changed, 139 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml
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@@ -0,0 +1,139 @@
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/leds/allwinner,sun50i-a100-ledc.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Allwinner A100 LED Controller Bindings
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+
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+maintainers:
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+ - Samuel Holland <samuel@sholland.org>
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+
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+description:
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+ The LED controller found in Allwinner sunxi SoCs uses a one-wire serial
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+ interface to drive up to 1024 RGB LEDs.
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+
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+properties:
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+ compatible:
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+ oneOf:
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+ - const: allwinner,sun50i-a100-ledc
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+ - items:
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+ - enum:
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+ - allwinner,sun20i-d1-ledc
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+ - allwinner,sun50i-r329-ledc
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+ - const: allwinner,sun50i-a100-ledc
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+
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+ reg:
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+ maxItems: 1
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+
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+ "#address-cells":
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+ const: 1
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+
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+ "#size-cells":
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+ const: 0
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+
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+ interrupts:
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+ maxItems: 1
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+
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+ clocks:
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+ items:
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+ - description: Bus clock
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+ - description: Module clock
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+
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+ clock-names:
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+ items:
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+ - const: bus
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+ - const: mod
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+
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+ resets:
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+ maxItems: 1
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+
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+ dmas:
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+ maxItems: 1
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+ description: TX DMA channel
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+
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+ dma-names:
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+ const: tx
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+
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+ allwinner,pixel-format:
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+ description: Pixel format (subpixel transmission order), default is "grb"
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+ enum:
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+ - bgr
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+ - brg
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+ - gbr
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+ - grb
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+ - rbg
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+ - rgb
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+
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+ allwinner,t0h-ns:
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+ default: 336
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+ description: Length of high pulse when transmitting a "0" bit
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+
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+ allwinner,t0l-ns:
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+ default: 840
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+ description: Length of low pulse when transmitting a "0" bit
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+
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+ allwinner,t1h-ns:
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+ default: 882
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+ description: Length of high pulse when transmitting a "1" bit
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+
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+ allwinner,t1l-ns:
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+ default: 294
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+ description: Length of low pulse when transmitting a "1" bit
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+
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+ allwinner,treset-ns:
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+ default: 300000
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+ description: Minimum delay between transmission frames
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+
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+patternProperties:
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+ "^multi-led@[0-9a-f]+$":
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+ type: object
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+ $ref: leds-class-multicolor.yaml#
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+ unevaluatedProperties: false
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+ properties:
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+ reg:
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+ minimum: 0
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+ maximum: 1023
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+ description: Index of the LED in the series (must be contiguous)
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+
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+ required:
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+ - reg
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+
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+required:
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+ - compatible
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+ - reg
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+ - interrupts
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+ - clocks
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+ - clock-names
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+ - resets
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+ - dmas
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+ - dma-names
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+
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+additionalProperties: false
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+
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+examples:
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+ - |
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+ #include <dt-bindings/interrupt-controller/irq.h>
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+ #include <dt-bindings/leds/common.h>
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+
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+ ledc: led-controller@2008000 {
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+ compatible = "allwinner,sun20i-d1-ledc",
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+ "allwinner,sun50i-a100-ledc";
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+ reg = <0x2008000 0x400>;
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+ interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
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+ clocks = <&ccu 12>, <&ccu 34>;
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+ clock-names = "bus", "mod";
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+ resets = <&ccu 12>;
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+ dmas = <&dma 42>;
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+ dma-names = "tx";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ multi-led@0 {
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+ reg = <0x0>;
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+ color = <LED_COLOR_ID_RGB>;
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+ function = LED_FUNCTION_INDICATOR;
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+ };
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+ };
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+
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+...
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