linux-kernel - Re: (subset) [PATCH v9 0/6] riscv: sophgo: add clock support for Sophgo CV1800/SG2000 SoCs

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Date: Sun, 14 Apr 2024 14:41:21 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Michael Opdenacker <michael.opdenacker@...tlin.com>, 
	Inochi Amaoto <inochiama@...look.com>, Michael Turquette <mturquette@...libre.com>, 
	Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Chao Wei <chao.wei@...hgo.com>, Chen Wang <unicorn_wang@...look.com>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>
Cc: Jisheng Zhang <jszhang@...nel.org>, Liu Gui <kenneth.liu@...hgo.com>, 
	Jingbao Qiu <qiujingbao.dlmu@...il.com>, dlan@...too.org, linux-clk@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: (subset) [PATCH v9 0/6] riscv: sophgo: add clock support for
 Sophgo CV1800/SG2000 SoCs

On Sun, Apr 14, 2024 at 07:56:42AM +0200, Michael Opdenacker wrote:
> Hi Inochi
> 
> On 4/11/24 at 09:38, Inochi Amaoto wrote:
> > On Sat, 9 Mar 2024 17:01:21 +0800, Inochi Amaoto wrote:
> > > Add clock controller support for the Sophgo CV1800B, CV1812H and SG2000.
> > > 
> > > Changed from v8:
> > > 1. improve code.
> > > 2. remove default config in Kconfig.
> > > 3. merge patch 2-4 of v8 into one.
> > > 
> > > [...]
> > 
> > Applied to sophgo/for-next, thanks!
> > 
> > [5/6] riscv: dts: sophgo: add clock generator for Sophgo CV1800 series SoC
> >        https://github.com/sophgo/linux/commit/bb7b3419627eb34f3466022d1f4b3c942c09712d
> > [6/6] riscv: dts: sophgo: add uart clock for Sophgo CV1800 series SoC
> >        https://github.com/sophgo/linux/commit/18e8c6d2cced6c57d62813f49b57eeb8ee02f984
> 
> Oops, for your information, this last change
> ([6/6] riscv: dts: sophgo: add uart clock for Sophgo CV1800 series SoC)
> breaks my Milk-V Duo S board when I boot it with cv1812h-huashan-pi.dtb as I
> believe you suggested.
> 
> I don't know whether the board actually boots, but at least I don't get any
> more output in the console.
> 
> Has someone tested this on the real Huashan Pi board?
> 
> Cheers
> Michael.
> 

Hi Michael,

I think you boot with the `defconfig` config. This config does
not enable the CV1800 clk support. I think you may need to apply
[1], which enable the clk driver. Also if you want to test sdhci
with real clk, you can try [2]. I test them on the Milk-V Duo S.

Regards,
Inochi

[1] https://lore.kernel.org/all/IA1PR20MB4953CA5D46EA8913B130D502BB052@IA1PR20MB4953.namprd20.prod.outlook.com/
[2] https://lore.kernel.org/all/IA1PR20MB4953CA5D46EA8913B130D502BB052@IA1PR20MB4953.namprd20.prod.outlook.com/