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From: Pavel Machek <pavel@ucw.cz>
To: Konrad Dybcio <konrad.dybcio@somainline.org>
Cc: phone-devel@vger.kernel.org,
	~postmarketos/upstreaming@lists.sr.ht,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Gustave Monce <gustave.monce@outlook.com>
Subject: Re: [PATCH 11/18] arm64: dts: qcom: msm8994-octagon: Add uSD card and disable HS400 on eMMC
Date: Thu, 18 Feb 2021 14:41:15 +0100	[thread overview]
Message-ID: <20210218134115.GA14087@duo.ucw.cz> (raw)
In-Reply-To: <20210131013853.55810-12-konrad.dybcio@somainline.org>

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On Sun 2021-01-31 02:38:42, Konrad Dybcio wrote:
> From: Gustave Monce <gustave.monce@outlook.com>
> 
> Lumia 950/XL, like other phones, ship with different storage chips.
> Some of them are not capable of stable operation at HS400. Disable it.
> 
> Signed-off-by: Gustave Monce <gustave.monce@outlook.com>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> ---
>  .../dts/qcom/msm8994-msft-lumia-octagon.dtsi  | 21 +++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
> index bf6e63a23600..004a42261cef 100644
> --- a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
> @@ -684,6 +684,27 @@ vph_pwr_bbyp: boost-bypass {
>  
>  &sdhc1 {
>  	status = "okay";
> +
> +	/*
> +	 * This device is shipped with HS400 capabable eMMCs

Typo, should be "capable"?

> +	 * However various brands have been used in various product batches,
> +	 * including a Samsung eMMC (BGND3R) which features a quirk with HS400.
> +	 * Set the speed to HS200 as a safety measure.
> +	 */

And this makes little sense. "This device is often shipped..."?

Best regards,
									Pavel

-- 
http://www.livejournal.com/~pavelmachek

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  reply	other threads:[~2021-02-18 14:24 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-31  1:38 [PATCH 00/18] 8992/4/Lumia 950/XL DTS updates Konrad Dybcio
2021-01-31  1:38 ` [PATCH 01/18] arm64: dts: qcom: msm8994: Add SMP2P nodes Konrad Dybcio
2021-01-31  1:38 ` [PATCH 02/18] arm64: dts: qcom: msm8994: Fix remaining BLSP errors/mistakes Konrad Dybcio
2021-01-31  1:38 ` [PATCH 03/18] arm64: dts: qcom: msm8994: Sort hwlock properly Konrad Dybcio
2021-01-31  1:38 ` [PATCH 04/18] arm64: dts: qcom: msm8992: Make the DT an overlay on top of 8994 Konrad Dybcio
2021-01-31  1:38 ` [PATCH 05/18] arm64: dts: qcom: msm8992/4-lumia*: Create a common DTS Konrad Dybcio
2021-01-31  1:38 ` [PATCH 06/18] arm64: dts: qcom: msm8994-octagon: Fix up the memory map Konrad Dybcio
2021-01-31  1:38 ` [PATCH 07/18] arm64: dts: qcom: msm8994-octagon: Add gpio-keys and Hall sensor Konrad Dybcio
2021-01-31  1:38 ` [PATCH 08/18] arm64: dts: qcom: msm8994-octagon: Configure regulators Konrad Dybcio
2021-01-31  1:38 ` [PATCH 09/18] arm64: dts: qcom: msm8994-octagon: Add QCA6174 bluetooth Konrad Dybcio
2021-01-31  1:38 ` [PATCH 10/18] arm64: dts: qcom: msm8994-octagon: Configure HD3SS460 Type-C mux pins Konrad Dybcio
2021-01-31  1:38 ` [PATCH 11/18] arm64: dts: qcom: msm8994-octagon: Add uSD card and disable HS400 on eMMC Konrad Dybcio
2021-02-18 13:41   ` Pavel Machek [this message]
2021-01-31  1:38 ` [PATCH 12/18] arm64: dts: qcom: msm8994-octagon: Configure Lattice iCE40 FPGA Konrad Dybcio
2021-02-18 13:43   ` Pavel Machek
2021-01-31  1:38 ` [PATCH 13/18] arm64: dts: qcom: msm8994-octagon: Configure PON keys Konrad Dybcio
2021-01-31  1:38 ` [PATCH 14/18] arm64: dts: qcom: msm8994-octagon: Add FM Radio and DDR regulator nodes Konrad Dybcio
2021-01-31  1:38 ` [PATCH 15/18] arm64: dts: qcom: msm8994-octagon: Add NXP NFC node Konrad Dybcio
2021-01-31  1:38 ` [PATCH 16/18] arm64: dts: qcom: msm8994-octagon: Add sensors on blsp1_i2c5 Konrad Dybcio
2021-01-31  1:38 ` [PATCH 17/18] arm64: dts: qcom: msm8994-octagon: Add TAS2553 codec Konrad Dybcio
2021-01-31  1:38 ` [PATCH 18/18] arm64: dts: qcom: msm8994-octagon: Add AD7147 and APDS9930 sensors Konrad Dybcio

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