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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)
105 lines
3.3 KiB
Diff
105 lines
3.3 KiB
Diff
From 657819ff477dd73cd71075609698aa57ba098d8c Mon Sep 17 00:00:00 2001
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From: David Abdurachmanov <david.abdurachmanov@sifive.com>
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Date: Wed, 15 Sep 2021 07:10:02 -0700
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Subject: [PATCH 2/7] riscv: sifive: unmatched: update regulators values
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These are the regulators values from the schematics for Rev3{A,B} boards.
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Note this is not fully correct as bcore1/bcore2 and bmem/bio are merged, but
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it's only supported in v5.15 kernel. See:
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541ee8f640327f951e7039278057827322231ab0 ("regulator: da9063: Add support for
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full-current mode.")
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This will be changed for v5.15 kernel based on the patch above.
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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 | 32 +++++++++++-----------
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1 file changed, 16 insertions(+), 16 deletions(-)
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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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@@ -73,16 +73,16 @@
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regulators {
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vdd_bcore1: bcore1 {
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- regulator-min-microvolt = <900000>;
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- regulator-max-microvolt = <900000>;
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+ regulator-min-microvolt = <1050000>;
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+ regulator-max-microvolt = <1050000>;
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regulator-min-microamp = <5000000>;
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regulator-max-microamp = <5000000>;
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regulator-always-on;
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};
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vdd_bcore2: bcore2 {
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- regulator-min-microvolt = <900000>;
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- regulator-max-microvolt = <900000>;
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+ regulator-min-microvolt = <1050000>;
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+ regulator-max-microvolt = <1050000>;
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regulator-min-microamp = <5000000>;
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regulator-max-microamp = <5000000>;
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regulator-always-on;
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@@ -137,48 +137,48 @@
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};
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vdd_ldo3: ldo3 {
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- regulator-min-microvolt = <1800000>;
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- regulator-max-microvolt = <1800000>;
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+ regulator-min-microvolt = <3300000>;
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+ regulator-max-microvolt = <3300000>;
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regulator-min-microamp = <200000>;
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regulator-max-microamp = <200000>;
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regulator-always-on;
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};
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vdd_ldo4: ldo4 {
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- regulator-min-microvolt = <1800000>;
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- regulator-max-microvolt = <1800000>;
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+ regulator-min-microvolt = <2500000>;
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+ regulator-max-microvolt = <2500000>;
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regulator-min-microamp = <200000>;
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regulator-max-microamp = <200000>;
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regulator-always-on;
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};
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vdd_ldo5: ldo5 {
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- regulator-min-microvolt = <1800000>;
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- regulator-max-microvolt = <1800000>;
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+ regulator-min-microvolt = <3300000>;
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+ regulator-max-microvolt = <3300000>;
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regulator-min-microamp = <100000>;
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regulator-max-microamp = <100000>;
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regulator-always-on;
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};
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vdd_ldo6: ldo6 {
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- regulator-min-microvolt = <3300000>;
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- regulator-max-microvolt = <3300000>;
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+ regulator-min-microvolt = <1800000>;
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+ regulator-max-microvolt = <1800000>;
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regulator-min-microamp = <200000>;
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regulator-max-microamp = <200000>;
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regulator-always-on;
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};
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vdd_ldo7: ldo7 {
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- regulator-min-microvolt = <1800000>;
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- regulator-max-microvolt = <1800000>;
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+ regulator-min-microvolt = <3300000>;
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+ regulator-max-microvolt = <3300000>;
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regulator-min-microamp = <200000>;
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regulator-max-microamp = <200000>;
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regulator-always-on;
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};
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vdd_ldo8: ldo8 {
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- regulator-min-microvolt = <1800000>;
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- regulator-max-microvolt = <1800000>;
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+ regulator-min-microvolt = <3300000>;
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+ regulator-max-microvolt = <3300000>;
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regulator-min-microamp = <200000>;
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regulator-max-microamp = <200000>;
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regulator-always-on;
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