build/patch/kernel/archive/sunxi-5.15/patches.megous/arm64-dts-rockchip-adjust-rk3568-pll-clocks.patch

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From f7c5b9c2a1af765de0aae3a21073e051e95448bf Mon Sep 17 00:00:00 2001
From: Peter Geis <pgwipeout@gmail.com>
Date: Wed, 28 Jul 2021 14:00:32 -0400
Subject: [PATCH 033/478] arm64: dts: rockchip: adjust rk3568 pll clocks
The rk3568 gpll should run at 1200mhz and the ppll should run at 200mhz.
These are set incorrectly by the bootloader, so fix them here.
gpll boots at 1188mhz, but to get most accurate dividers for all
gpll_dividers it needs to run at 1200mhz, otherwise everyone downstream
isn't quite right.
ppll feeds the combophys, which has a divide by 2 clock, so 200mhz is
required to reach a 100mhz clock input for them.
The vendor-kernel also makes this fix.
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
[pulled deeper explanation from discussion into commit message]
Link: https://lore.kernel.org/r/20210728180034.717953-7-pgwipeout@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/rk356x.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index 874d8b977679..bef747fb1fe2 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -222,6 +222,8 @@ cru: clock-controller@fdd20000 {
reg = <0x0 0xfdd20000 0x0 0x1000>;
#clock-cells = <1>;
#reset-cells = <1>;
+ assigned-clocks = <&cru PLL_GPLL>, <&pmucru PLL_PPLL>;
+ assigned-clock-rates = <1200000000>, <200000000>;
};
i2c0: i2c@fdd40000 {
--
2.35.3