On 22/11/2017 14:15, Fabio Estevam wrote: > From: Fabio Estevam <fabio.este...@nxp.com> > > mx6sxsabresd can run different kernel versions, such as NXP 4.1 or mainline. > > Currently the rootfs location is passed via mmcblk number and the > problem with this approach is that the mmcblk number for the SD > card changes depending on the kernel version. > > In order to avoid such issue, use the UUID method to specify the > rootfs location. > > Signed-off-by: Fabio Estevam <fabio.este...@nxp.com> > --- > configs/mx6sxsabresd_defconfig | 1 + > include/configs/mx6sxsabresd.h | 5 +++-- > 2 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/configs/mx6sxsabresd_defconfig b/configs/mx6sxsabresd_defconfig > index ac36a18..b707322 100644 > --- a/configs/mx6sxsabresd_defconfig > +++ b/configs/mx6sxsabresd_defconfig > @@ -12,6 +12,7 @@ CONFIG_CMD_BOOTZ=y > CONFIG_CMD_GPIO=y > CONFIG_CMD_I2C=y > CONFIG_CMD_MMC=y > +CONFIG_CMD_PART=y > CONFIG_CMD_PCI=y > CONFIG_CMD_USB=y > # CONFIG_CMD_SETEXPR is not set > diff --git a/include/configs/mx6sxsabresd.h b/include/configs/mx6sxsabresd.h > index 85b8601..906e677 100644 > --- a/include/configs/mx6sxsabresd.h > +++ b/include/configs/mx6sxsabresd.h > @@ -58,9 +58,9 @@ > > "videomode=video=ctfb:x:800,y:480,depth:24,pclk:29850,le:89,ri:164,up:23,lo:10,hs:10,vs:10,sync:0,vmode:0\0" > \ > "mmcdev=2\0" \ > "mmcpart=1\0" \ > - "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ > + "finduuid=part uuid mmc 2:2 uuid\0" \ > "mmcargs=setenv bootargs console=${console},${baudrate} " \ > - "root=${mmcroot}\0" \ > + "root=PARTUUID=${uuid} rootwait rw\0" \ > "loadbootscript=" \ > "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \ > "bootscript=echo Running bootscript from mmc ...; " \ > @@ -68,6 +68,7 @@ > "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \ > "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \ > "mmcboot=echo Booting from mmc ...; " \ > + "run finduuid; " \ > "run mmcargs; " \ > "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ > "if run loadfdt; then " \ >
Reviewed-by: Stefano Babic <sba...@denx.de> Best regards, Stefano -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot