[U-Boot] [PATCH] spl: spl_mmc: fix getting raw_sect when boot from emmc boot partition

[Peng Fan]

> Subject: Re: [PATCH] spl: spl_mmc: fix getting raw_sect when boot from
> emmc boot partition
> 
> Hi Peng,
> 
> > On i.MX8, when booting from eMMC boot partition, the whole flash.bin
> > is stored in boot partition, however SPL switches to user partition
> > during the init of mmc driver:
> >   spl_mmc_load() -> mmc_init()
> >
> > Then it tries to load the container image in
> > spl_mmc_get_uboot_raw_sector(), but here it reads the data from user
> > partition and the header is not recognized as a valid header.
> >
> > So we move spl_mmc_get_uboot_raw_sector after eMMC partition switch
> to
> > address this issue.
> >
> > Anyway put spl_mmc_get_uboot_raw_sector before eMMC partition switch
> > is not correct, so let's move it after eMMC partition switch.
> >
> 
> I assume that this change is not causing regressions on other i.MX boards?
> (Like i.MX6Q or i.MX53)

No regression on other i.MX boards. Only i.MX8QM/8QXP has this issue currently.

Regards,
Peng.

> 
> > Reported-by: Anatolij Gustschin <agust at denx.de>
> > Signed-off-by: Peng Fan <peng.fan at nxp.com>
> > ---
> >  common/spl/spl_mmc.c | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c index
> > 34e1e73d80..2ede096e61 100644
> > --- a/common/spl/spl_mmc.c
> > +++ b/common/spl/spl_mmc.c
> > @@ -343,8 +343,6 @@ int spl_mmc_load(struct spl_image_info
> *spl_image,
> >  		}
> >  	}
> >
> > -	raw_sect = spl_mmc_get_uboot_raw_sector(mmc);
> > -
> >  	boot_mode = spl_boot_mode(bootdev->boot_device);
> >  	err = -EINVAL;
> >  	switch (boot_mode) {
> > @@ -383,6 +381,9 @@ int spl_mmc_load(struct spl_image_info
> *spl_image,
> >  			if (!err)
> >  				return err;
> >  		}
> > +
> > +		raw_sect = spl_mmc_get_uboot_raw_sector(mmc);
> > +
> >  #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
> >  		err = mmc_load_image_raw_partition(spl_image, mmc, raw_part,
> > raw_sect);
> 
> 
> 
> 
> Best regards,
> 
> Lukasz Majewski
> 
> --
> 
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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