mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 14:37:57 +00:00
2e0b000e0e
Remove patches that were upstreamed, and backport features from later kernels. Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
60 lines
1.9 KiB
Diff
60 lines
1.9 KiB
Diff
From 99942611816c117a01f16dbcab54908a49b378c3 Mon Sep 17 00:00:00 2001
|
|
From: Brandon Cheo Fusi <fusibrandon13@gmail.com>
|
|
Date: Mon, 18 Dec 2023 12:05:39 +0100
|
|
Subject: [PATCH 02/14] riscv: dts: allwinner: Update opp table to allow CPU
|
|
frequency scaling
|
|
|
|
Two OPPs are currently defined for the D1/D1s; one at 408MHz and
|
|
another at 1.08GHz. Switching between these can be done with the
|
|
"sun50i-cpufreq-nvmem" driver. This patch populates the opp table
|
|
appropriately, inspired by
|
|
https://github.com/Tina-Linux/linux-5.4/blob/master/arch/riscv/boot/dts/sunxi/sun20iw1p1.dtsi
|
|
|
|
The supply voltages are PWM-controlled, but support for that IP
|
|
is still in the works. So stick to a target vdd-cpu supply of 0.9V,
|
|
which seems to be the default on most D1 boards.
|
|
|
|
Signed-off-by: Brandon Cheo Fusi <fusibrandon13@gmail.com>
|
|
---
|
|
arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi | 18 +++++++++++++++---
|
|
1 file changed, 15 insertions(+), 3 deletions(-)
|
|
|
|
--- a/arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi
|
|
+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi
|
|
@@ -36,16 +36,22 @@
|
|
};
|
|
|
|
opp_table_cpu: opp-table-cpu {
|
|
- compatible = "operating-points-v2";
|
|
+ compatible = "allwinner,sun20i-d1-operating-points",
|
|
+ "allwinner,sun50i-h6-operating-points";
|
|
+ nvmem-cells = <&cpu_speed_grade>;
|
|
+ nvmem-cell-names = "speed";
|
|
+ opp-shared;
|
|
|
|
opp-408000000 {
|
|
+ clock-latency-ns = <244144>; /* 8 32k periods */
|
|
opp-hz = /bits/ 64 <408000000>;
|
|
- opp-microvolt = <900000 900000 1100000>;
|
|
+ opp-microvolt-speed0 = <900000 900000 1100000>;
|
|
};
|
|
|
|
opp-1080000000 {
|
|
+ clock-latency-ns = <244144>; /* 8 32k periods */
|
|
opp-hz = /bits/ 64 <1008000000>;
|
|
- opp-microvolt = <900000 900000 1100000>;
|
|
+ opp-microvolt-speed0 = <900000 900000 1100000>;
|
|
};
|
|
};
|
|
|
|
@@ -112,3 +118,9 @@
|
|
<0x00000000 0x0000000f 0xffffffff 0xffffffff 0x00020000>;
|
|
};
|
|
};
|
|
+
|
|
+&sid {
|
|
+ cpu_speed_grade: cpu-speed-grade@0 {
|
|
+ reg = <0x00 0x2>;
|
|
+ };
|
|
+};
|