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Date:   Thu, 17 Jan 2019 13:19:06 +0000
From:   Fabrizio Castro <fabrizio.castro@...renesas.com>
To:     Simon Horman <horms@...ge.net.au>
CC:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Biju Das <biju.das@...renesas.com>,
        Magnus Damm <magnus.damm@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Thierry Reding <treding@...dia.com>,
        Andreas Färber <afaerber@...e.de>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Kevin Hilman <khilman@...libre.com>,
        Johan Hovold <johan@...nel.org>,
        Lukasz Majewski <lukma@...x.de>,
        Michal Simek <monstr@...str.eu>,
        Michal Vokáč <michal.vokac@...ft.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Ben Whitten <ben.whitten@...il.com>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "ebiharaml@...linux.co.jp" <ebiharaml@...linux.co.jp>
Subject: RE: [PATCH 06/11] arm64: dts: renesas: r8a774c0-cat874: Add uSD
 support

Hello Simon,

Thank you for your feedback!

> From: Simon Horman <horms@...ge.net.au>
> Sent: 17 January 2019 11:12
> Subject: Re: [PATCH 06/11] arm64: dts: renesas: r8a774c0-cat874: Add uSD support
>
> On Wed, Jan 16, 2019 at 06:37:49PM +0000, Fabrizio Castro wrote:
> > From: Biju Das <biju.das@...renesas.com>
> >
> > This patch adds uSD card support.
>
> Can I confirm that SDHI0 is wired up to a uSD slot?

Yes, it is wired up to a uSD slot

Thanks,
Fab

>
> I ask because if that is the case then this patch looks good to me.
> But if it is wired up to a full-size SD slot then I believe
> a wp-gpio (write protect) should be described.
>
> >
> > Signed-off-by: Biju Das <biju.das@...renesas.com>
> > Reviewed-by: Fabrizio Castro <fabrizio.castro@...renesas.com>
> > Reviewed-by: Chris Paterson <Chris.Paterson2@...esas.com>
> > ---
> >  arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts | 50 +++++++++++++++++++++++++
> >  1 file changed, 50 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
> > index c545ce5..477a56b 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
> > +++ b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
> > @@ -7,6 +7,7 @@
> >
> >  /dts-v1/;
> >  #include "r8a774c0.dtsi"
> > +#include <dt-bindings/gpio/gpio.h>
> >
> >  / {
> >  model = "Silicon Linux RZ/G2E 96board platform (CAT874)";
> > @@ -26,6 +27,29 @@
> >  /* first 128MB is reserved for secure area. */
> >  reg = <0x0 0x48000000 0x0 0x78000000>;
> >  };
> > +
> > +vcc_sdhi0: regulator-vcc-sdhi0 {
> > +compatible = "regulator-fixed";
> > +
> > +regulator-name = "SDHI0 Vcc";
> > +regulator-min-microvolt = <3300000>;
> > +regulator-max-microvolt = <3300000>;
> > +regulator-always-on;
> > +regulator-boot-on;
> > +};
> > +
> > +vccq_sdhi0: regulator-vccq-sdhi0 {
> > +compatible = "regulator-gpio";
> > +
> > +regulator-name = "SDHI0 VccQ";
> > +regulator-min-microvolt = <1800000>;
> > +regulator-max-microvolt = <3300000>;
> > +
> > +gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
> > +gpios-states = <1>;
> > +states = <3300000 1
> > +  1800000 0>;
> > +};
> >  };
> >
> >  &extal_clk {
> > @@ -37,6 +61,18 @@
> >  groups = "scif2_data_a";
> >  function = "scif2";
> >  };
> > +
> > +sdhi0_pins: sd0 {
> > +groups = "sdhi0_data4", "sdhi0_ctrl";
> > +function = "sdhi0";
> > +power-source = <3300>;
> > +};
> > +
> > +sdhi0_pins_uhs: sd0_uhs {
> > +groups = "sdhi0_data4", "sdhi0_ctrl";
> > +function = "sdhi0";
> > +power-source = <1800>;
> > +};
> >  };
> >
> >  &scif2 {
> > @@ -45,3 +81,17 @@
> >
> >  status = "okay";
> >  };
> > +
> > +&sdhi0 {
> > +pinctrl-0 = <&sdhi0_pins>;
> > +pinctrl-1 = <&sdhi0_pins_uhs>;
> > +pinctrl-names = "default", "state_uhs";
> > +
> > +vmmc-supply = <&vcc_sdhi0>;
> > +vqmmc-supply = <&vccq_sdhi0>;
> > +cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
> > +bus-width = <4>;
> > +sd-uhs-sdr50;
> > +sd-uhs-sdr104;
> > +status = "okay";
> > +};
> > --
> > 2.7.4
> >



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