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Open Source and information security mailing list archives
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Date: Tue, 26 Oct 2021 11:12:34 +1030 From: "Andrew Jeffery" <andrew@...id.au> To: "Chin-Ting Kuo" <chin-ting_kuo@...eedtech.com>, "Rob Herring" <robh+dt@...nel.org>, "Joel Stanley" <joel@....id.au>, "Michael Turquette" <mturquette@...libre.com>, "Stephen Boyd" <sboyd@...nel.org>, "Adrian Hunter" <adrian.hunter@...el.com>, linux-aspeed@...ts.ozlabs.org, openbmc@...ts.ozlabs.org, linux-mmc <linux-mmc@...r.kernel.org>, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org Cc: BMC-SW@...eedtech.com, "Steven Lee" <steven_lee@...eedtech.com> Subject: Re: [PATCH 03/10] dts: aspeed: ast2600: Support SDR50 for SD device On Wed, 22 Sep 2021, at 20:01, Chin-Ting Kuo wrote: > The maximum frequency for SD controller on AST2600 EVB is > 100MHz. In order to achieve 100MHz, sd-uhs-sdr50 property > should be added and the driver will set the SDR50 supported > bit in capability 2 register during probing stage. > > Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@...eedtech.com> As this is a limitation of the SoC it should be done in aspeed-g6.dtsi. Unless I've misunderstood? Andrew > --- > arch/arm/boot/dts/aspeed-ast2600-evb.dts | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/boot/dts/aspeed-ast2600-evb.dts > b/arch/arm/boot/dts/aspeed-ast2600-evb.dts > index b7eb552640cb..4551dba499c2 100644 > --- a/arch/arm/boot/dts/aspeed-ast2600-evb.dts > +++ b/arch/arm/boot/dts/aspeed-ast2600-evb.dts > @@ -280,6 +280,7 @@ > &sdhci0 { > status = "okay"; > bus-width = <4>; > + sd-uhs-sdr50; > max-frequency = <100000000>; > sdhci-drive-type = /bits/ 8 <3>; > sdhci-caps-mask = <0x7 0x0>; > @@ -292,6 +293,7 @@ > &sdhci1 { > status = "okay"; > bus-width = <4>; > + sd-uhs-sdr50; > max-frequency = <100000000>; > sdhci-drive-type = /bits/ 8 <3>; > sdhci-caps-mask = <0x7 0x0>; > -- > 2.17.1
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