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Message-ID: <20180702105037.GQ112168@atomide.com>
Date:   Mon, 2 Jul 2018 03:50:38 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Robert Nelson <robertcnelson@...il.com>
Cc:     Faiz Abbas <faiz_abbas@...com>,
        linux kernel <linux-kernel@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-omap <linux-omap@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        BenoƮt Cousson <bcousson@...libre.com>,
        Sekhar Nori <nsekhar@...com>
Subject: Re: [PATCH] ARM: dts: am33xx: Add pinmux data for mmc1 in
 am335x-evm, evmsk and beaglebone

* Robert Nelson <robertcnelson@...il.com> [180618 14:00]:
> On Wed, Apr 11, 2018 at 6:48 AM, Faiz Abbas <faiz_abbas@...com> wrote:
> > am335x-evm, am335x-evmsk and am335x-beaglebone are currently relying on
> > pinmux set by the bootloader to set the correct value for mmc1. Fix
> > this by adding pinmux data for the same in kernel.
> >
> > Signed-off-by: Faiz Abbas <faiz_abbas@...com>
> > ---
> >  arch/arm/boot/dts/am335x-bone-common.dtsi | 9 ++++++++-
> >  arch/arm/boot/dts/am335x-evm.dts          | 9 ++++++++-
> >  arch/arm/boot/dts/am335x-evmsk.dts        | 9 ++++++++-
> >  3 files changed, 24 insertions(+), 3 deletions(-)
> >
> > diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
> > index e67b4d6..f9e8667 100644
> > --- a/arch/arm/boot/dts/am335x-bone-common.dtsi
> > +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
> > @@ -161,7 +161,14 @@
> >
> >         mmc1_pins: pinmux_mmc1_pins {
> >                 pinctrl-single,pins = <
> > -                       AM33XX_IOPAD(0x960, PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
> > +                       AM33XX_IOPAD(0x960, PIN_INPUT | MUX_MODE7)              /* spio0_cs1.gpio0_6 */
> > +                       AM33XX_IOPAD(0x8fc, PIN_INPUT_PULLUP | MUX_MODE0)       /* mmc0_dat0.mmc0_dat0 */
> > +                       AM33XX_IOPAD(0x8f8, PIN_INPUT_PULLUP | MUX_MODE0)       /* mmc0_dat1.mmc0_dat1 */
> > +                       AM33XX_IOPAD(0x8f4, PIN_INPUT_PULLUP | MUX_MODE0)       /* mmc0_dat2.mmc0_dat2 */
> > +                       AM33XX_IOPAD(0x8f0, PIN_INPUT_PULLUP | MUX_MODE0)       /* mmc0_dat3.mmc0_dat3 */
> > +                       AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0)       /* mmc0_cmd.mmc0_cmd */
> > +                       AM33XX_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0)       /* mmc0_clk.mmc0_clk */
> > +                       AM33XX_IOPAD(0x9a0, PIN_INPUT | MUX_MODE4)              /* mcasp0_aclkr.mmc0_sdwp */
> 
> We went one pin too far on the Beagle's here:
> 
> 0x9a0 ( mcasp0_aclkr.mmc0_sdwp ) = Routed to P9_42, (muxed with C18,
> to a shared pin on the header), so not connected to the microSD
> socket...
> 
> https://github.com/beagleboard/beaglebone-black/blob/master/BBB_SCH.pdf
> 
> Looking at this evm schematic, it looks like 0x9a0 should be removed
> too, but I'm not sure on all revisions:
> 
> http://processors.wiki.ti.com/images/a/a2/TMDSSK3358_3H0009_REV1_2B_SCH.pdf

Hmm care to post a fix for this?

Regards,

Tony

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