From: Sascha Hauer <s.hauer@pengutronix.de>
To: Stefan Christ <s.christ@phytec.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH for next 08/15] ARM: phytec-som-imx6: add boot device emmc and automount
Date: Mon, 2 May 2016 09:51:56 +0200 [thread overview]
Message-ID: <20160502075156.GB19714@pengutronix.de> (raw)
In-Reply-To: <20160429072528.GA2685@lws-christ>
On Fri, Apr 29, 2016 at 09:25:28AM +0200, Stefan Christ wrote:
> Hi Sascha,
>
> > > diff --git a/arch/arm/boards/phytec-som-imx6/defaultenv-physom-imx6-mira/boot/emmc b/arch/arm/boards/phytec-som-imx6/defaultenv-physom-imx6-mira/boot/emmc
> > > new file mode 100644
> > > index 0000000..e3cc9e3
> > > --- /dev/null
> > > +++ b/arch/arm/boards/phytec-som-imx6/defaultenv-physom-imx6-mira/boot/emmc
> > > @@ -0,0 +1,5 @@
> > > +#!/bin/sh
> > > +
> > > +global.bootm.image="/mnt/emmc/linuximage"
> > > +global.bootm.oftree="/mnt/emmc/oftree"
> > > +global.linux.bootargs.dyn.root="root=/dev/mmcblk3p2 rootwait rw"
> >
> > Does this work reliably? Is there finally a patch upstream that creates
> > fixed numbers for MMC/SD block devices?
>
> Our kernel tree contains a patch for that. The mmcblk id is derived from the
> device tree alias index. It isn't a mainline ready solution, since there are
> some unhandled edge cases in the patch and it's implemented currently only for
> the driver "sdhci-esdhc-imx".
There was yet another attempt for consistent mmcblk numbering shot down
here just last weekend: http://www.spinics.net/lists/arm-kernel/msg501495.html
Given that there probably never will be a way to (reliably) pass the rootfs via
root=mmcblkxy, I can't take this patch. I sent a patch which pushes the
partuuid mechanism from the bootloader spec code to bootm which might
help to solve this problem here.
I applied this series without this patch. This provoked a little merge
conflict in the patch renaming the environment directory. Please check
the result in -next.
Sascha
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next prev parent reply other threads:[~2016-05-02 7:52 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-27 10:04 [PATCH for next 00/15] New Phytec i.MX6 Patches Stefan Christ
2016-04-27 10:04 ` [PATCH for next 01/15] ARM: imx_v7_defconfig: enable NANDTEST command Stefan Christ
2016-04-27 10:04 ` [PATCH for next 02/15] ARM: imx_v7_defconfig: add command mmc_extcsd Stefan Christ
2016-04-27 10:04 ` [PATCH for next 03/15] ARM: imx6q: add support for phyBOARD-SUBRA-i.MX6 Quad Stefan Christ
2016-04-27 10:04 ` [PATCH for next 04/15] imx6qdl-phytec-pfla02.dtsi: add i2c eeprom Stefan Christ
2016-04-27 10:04 ` [PATCH for next 05/15] ARM: dts: imx6: phyboards: reduce clock speed for usdhc3 Stefan Christ
2016-04-27 10:04 ` [PATCH for next 06/15] ARM: dts: pfla02: use long enough reset for ethernet phy Stefan Christ
2016-04-27 10:04 ` [PATCH for next 07/15] ARM: phytec-som-imx6: add barebox partitions for MMC Stefan Christ
2016-04-27 10:04 ` [PATCH for next 08/15] ARM: phytec-som-imx6: add boot device emmc and automount Stefan Christ
2016-04-28 8:34 ` Sascha Hauer
2016-04-28 11:56 ` Holger Schurig
2016-04-28 20:31 ` Trent Piepho
2016-04-29 7:25 ` Stefan Christ
2016-05-02 7:51 ` Sascha Hauer [this message]
2016-05-02 9:03 ` Stefan Christ
2016-05-03 7:12 ` Sascha Hauer
2016-04-27 10:04 ` [PATCH for next 09/15] ARM: phytec-som-imx6: fix bootsource for phyCORE-i.MX6 Stefan Christ
2016-04-27 10:04 ` [PATCH for next 10/15] ARM: phytec-som-imx6: add phyCORE-i.MX6 Quad 2GiB RAM Stefan Christ
2016-04-27 10:04 ` [PATCH for next 11/15] ARM: phytec-som-imx6: add phyCORE-i.MX6 DualLite Stefan Christ
2016-04-27 10:04 ` [PATCH for next 12/15] ARM: phytec-som-imx6: update RAM calibration for phycore-imx6dl Stefan Christ
2016-04-27 10:04 ` [PATCH for next 13/15] ARM: phytec-som-imx6: rename environment folder Stefan Christ
2016-04-27 10:04 ` [PATCH for next 14/15] ARM: phytec-som-imx6: adapt main update handler for eMMC Stefan Christ
2016-04-27 10:04 ` [PATCH for next 15/15] ARM: phytec-som-imx6: add NOR for phycore-imx6 emmc Stefan Christ
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