linux-kernel - Aw: [PATCH v2 2/2] arm64: dts: mt7986: fix emmc hs400 mode without uboot initialization

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Date:   Fri, 25 Aug 2023 17:36:08 +0200
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Frank Wunderlich <linux@...web.de>
Cc:     linux-mediatek@...ts.infradead.org,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Wenbin Mei <wenbin.mei@...iatek.com>,
        Sam Shih <sam.shih@...iatek.com>, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Eric Woudstra <ericwouds@...il.com>, stable@...r.kernel.org
Subject: Aw: [PATCH v2 2/2] arm64: dts: mt7986: fix emmc hs400 mode without
 uboot initialization

Hi,

just a friendly reminder, patch seems not applied to next.

dt-binding part is reported as applied

regards Frank


> Gesendet: Donnerstag, 29. Juni 2023 um 20:43 Uhr
> Von: "Frank Wunderlich" <linux@...web.de>
> An: linux-mediatek@...ts.infradead.org
> Cc: "Frank Wunderlich" <frank-w@...lic-files.de>, "Chaotian Jing" <chaotian.jing@...iatek.com>, "Ulf Hansson" <ulf.hansson@...aro.org>, "Rob Herring" <robh+dt@...nel.org>, "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>, "Conor Dooley" <conor+dt@...nel.org>, "Matthias Brugger" <matthias.bgg@...il.com>, "AngeloGioacchino Del Regno" <angelogioacchino.delregno@...labora.com>, "Wenbin Mei" <wenbin.mei@...iatek.com>, "Sam Shih" <sam.shih@...iatek.com>, linux-mmc@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, "Eric Woudstra" <ericwouds@...il.com>, stable@...r.kernel.org
> Betreff: [PATCH v2 2/2] arm64: dts: mt7986: fix emmc hs400 mode without uboot initialization
>
> From: Eric Woudstra <ericwouds@...il.com>
>
> Eric reports errors on emmc with hs400 mode when booting linux on bpi-r3
> without uboot [1]. Booting with uboot does not show this because clocks
> seem to be initialized by uboot.
>
> Fix this by adding assigned-clocks and assigned-clock-parents like it's
> done in uboot [2].
>
> [1] https://forum.banana-pi.org/t/bpi-r3-kernel-fails-setting-emmc-clock-to-416m-depends-on-u-boot/15170
> [2] https://github.com/u-boot/u-boot/blob/master/arch/arm/dts/mt7986.dtsi#L287
>
> Cc: stable@...r.kernel.org
> Fixes: 513b49d19b34 ("arm64: dts: mt7986: add mmc related device nodes")
> Signed-off-by: Eric Woudstra <ericwouds@...il.com>
> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> ---
>  arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> index 68539ea788df..207510abda89 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> @@ -374,6 +374,10 @@ mmc0: mmc@...30000 {
>  			reg = <0 0x11230000 0 0x1000>,
>  			      <0 0x11c20000 0 0x1000>;
>  			interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
> +			assigned-clocks = <&topckgen CLK_TOP_EMMC_416M_SEL>,
> +					  <&topckgen CLK_TOP_EMMC_250M_SEL>;
> +			assigned-clock-parents = <&apmixedsys CLK_APMIXED_MPLL>,
> +						 <&topckgen CLK_TOP_NET1PLL_D5_D2>;
>  			clocks = <&topckgen CLK_TOP_EMMC_416M_SEL>,
>  				 <&infracfg CLK_INFRA_MSDC_HCK_CK>,
>  				 <&infracfg CLK_INFRA_MSDC_CK>,
> --
> 2.34.1
>
>