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4a281a7789
RISC-V is a new CPU architecture aimed to be fully free and open. This
target will add support for it, based on 5.15.
Supports running on:
- HiFive Unleashed - FU540, first generation
- HiFive Unmatched - FU740, current latest generation, PCIe
SD-card images are generated, where the partitions are required to have
specific type codes. As it is commonplace nowadays, OpenSBI is used as the
first stage, with U-boot following as the proper bootloader.
Specifications:
HiFive Unleashed:
- CPU: SiFive FU540 quad-core RISC-V (U54, RV64IMAFDC or RV64GC)
- Memory: 8Gb
- Ethernet: 1x 10/100/1000
- Console: via microUSB
HiFive Unmatched:
- CPU: SiFive FU740 quad-core RISC-V (U74, RV64IMAFDCB or RV64GCB)
- Memory: 16Gb
- Ethernet: 1x 10/100/1000
- USB: 4x USB 3.2
- PCIe: - 1x PCIe Gen3 x8
- 1x M.2 key M (PCIe x4)
- 1x M.2 Key E (PCIe x1 / USB2.0)
- Console: via microUSB
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>
(cherry picked from commit a3469a90c4)
70 lines
1.9 KiB
Diff
70 lines
1.9 KiB
Diff
From 2c2d8ac8c124a2938c9326c14b2dffd46d76b4a8 Mon Sep 17 00:00:00 2001
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From: David Abdurachmanov <david.abdurachmanov@sifive.com>
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Date: Mon, 13 Sep 2021 02:15:37 -0700
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Subject: [PATCH 3/7] riscv: sifive: unmatched: define PWM LEDs
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Add D2 (RGB) and D12 (green) LEDs for SiFive Unmatched board.
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Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
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---
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.../riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 41 ++++++++++++++++++++++
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1 file changed, 41 insertions(+)
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--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
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+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
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@@ -4,6 +4,8 @@
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#include "fu740-c000.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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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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+#include <dt-bindings/pwm/pwm.h>
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/* Clock frequency (in Hz) of the PCB crystal for rtcclk */
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#define RTCCLK_FREQ 1000000
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@@ -31,6 +33,45 @@
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soc {
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};
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+ pwmleds {
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+ compatible = "pwm-leds";
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+ green-d12 {
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+ label = "green:d12";
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+ color = <LED_COLOR_ID_GREEN>;
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+ pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>;
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+ active-low = <1>;
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+ max-brightness = <255>;
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+ linux,default-trigger = "none";
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+ };
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+
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+ green-d2 {
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+ label = "green:d2";
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+ color = <LED_COLOR_ID_GREEN>;
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+ pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>;
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+ active-low = <1>;
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+ max-brightness = <255>;
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+ linux,default-trigger = "none";
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+ };
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+
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+ red-d2 {
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+ label = "red:d2";
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+ color = <LED_COLOR_ID_RED>;
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+ pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>;
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+ active-low = <1>;
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+ max-brightness = <255>;
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+ linux,default-trigger = "none";
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+ };
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+
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+ blue-d2 {
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+ label = "blue:d2";
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+ color = <LED_COLOR_ID_BLUE>;
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+ pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>;
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+ active-low = <1>;
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+ max-brightness = <255>;
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+ linux,default-trigger = "none";
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+ };
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+ };
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+
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hfclk: hfclk {
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#clock-cells = <0>;
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compatible = "fixed-clock";
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