From: Michael Walle Date: Fri, 14 May 2021 18:55:52 +0000 (+0200) Subject: arm64: dts: freescale: sl28: var4: fix RGMII clock and voltage X-Git-Tag: Proxmox-5.11.22-1~86 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=777a3202cdb8941bf56f99bd38916967e00dd078;p=mirror_ubuntu-hirsute-kernel.git arm64: dts: freescale: sl28: var4: fix RGMII clock and voltage BugLink: https://bugs.launchpad.net/bugs/1933691 [ Upstream commit 25201269c6ec3e9398426962ccdd55428261f7d0 ] During hardware validation it was noticed that the clock isn't continuously enabled when there is no link. This is because the 125MHz clock is derived from the internal PLL which seems to go into some kind of power-down mode every once in a while. The LS1028A expects a contiuous clock. Thus enable the PLL all the time. Also, the RGMII pad voltage is wrong. It was configured to 2.5V (that is the VDDH regulator). The correct voltage is 1.8V, i.e. the VDDIO regulator. This fix is for the freescale/fsl-ls1028a-kontron-sl28-var4.dts. Fixes: 815364d0424e ("arm64: dts: freescale: add Kontron sl28 support") Signed-off-by: Michael Walle Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin Signed-off-by: Kamal Mostafa Signed-off-by: Kelsey Skunberg --- diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts index df212ed5bb94..e65d1c477e2c 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts @@ -31,11 +31,10 @@ reg = <0x4>; eee-broken-1000t; eee-broken-100tx; - qca,clk-out-frequency = <125000000>; qca,clk-out-strength = ; - - vddio-supply = <&vddh>; + qca,keep-pll-enabled; + vddio-supply = <&vddio>; vddio: vddio-regulator { regulator-name = "VDDIO";