openwrt/target/linux/sifiveu/patches-5.15/0002-riscv-sifive-unmatched-update-regulators-values.patch
Zoltan HERPAI a3469a90c4 sifiveu: add new target for SiFive U-based boards
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>
2023-05-28 13:19:11 +02:00

105 lines
3.3 KiB
Diff

From 657819ff477dd73cd71075609698aa57ba098d8c Mon Sep 17 00:00:00 2001
From: David Abdurachmanov <david.abdurachmanov@sifive.com>
Date: Wed, 15 Sep 2021 07:10:02 -0700
Subject: [PATCH 2/7] riscv: sifive: unmatched: update regulators values
These are the regulators values from the schematics for Rev3{A,B} boards.
Note this is not fully correct as bcore1/bcore2 and bmem/bio are merged, but
it's only supported in v5.15 kernel. See:
541ee8f640327f951e7039278057827322231ab0 ("regulator: da9063: Add support for
full-current mode.")
This will be changed for v5.15 kernel based on the patch above.
Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
---
.../riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 32 +++++++++++-----------
1 file changed, 16 insertions(+), 16 deletions(-)
--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
@@ -73,16 +73,16 @@
regulators {
vdd_bcore1: bcore1 {
- regulator-min-microvolt = <900000>;
- regulator-max-microvolt = <900000>;
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
regulator-min-microamp = <5000000>;
regulator-max-microamp = <5000000>;
regulator-always-on;
};
vdd_bcore2: bcore2 {
- regulator-min-microvolt = <900000>;
- regulator-max-microvolt = <900000>;
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
regulator-min-microamp = <5000000>;
regulator-max-microamp = <5000000>;
regulator-always-on;
@@ -137,48 +137,48 @@
};
vdd_ldo3: ldo3 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-min-microamp = <200000>;
regulator-max-microamp = <200000>;
regulator-always-on;
};
vdd_ldo4: ldo4 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
regulator-min-microamp = <200000>;
regulator-max-microamp = <200000>;
regulator-always-on;
};
vdd_ldo5: ldo5 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-min-microamp = <100000>;
regulator-max-microamp = <100000>;
regulator-always-on;
};
vdd_ldo6: ldo6 {
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
regulator-min-microamp = <200000>;
regulator-max-microamp = <200000>;
regulator-always-on;
};
vdd_ldo7: ldo7 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-min-microamp = <200000>;
regulator-max-microamp = <200000>;
regulator-always-on;
};
vdd_ldo8: ldo8 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-min-microamp = <200000>;
regulator-max-microamp = <200000>;
regulator-always-on;