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OMAP3: igep00x0: allow booting with a FDT from MMC

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IGEP boards now have Device Tree support in the mainline
kernel. To boot an IGEP board using a DT, a uEnv.txt plain
text file could be used to define a custom uenvcmd that will
be run by the default boot command.

It is more convenient to change the default boot command to
allow loading a FDT if it is stored in the boot dir of the
rootfs uSD/MMC partition.

If no FDT is found then the defaul command tries to boot a
zImage without a DT using legacy boot.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
This commit is contained in:
Javier Martinez Canillas
2013-08-07 17:53:19 +02:00
committed by Tom Rini
parent 2be6bed003
commit a2fa28bc98
2 changed files with 26 additions and 1 deletions
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14
board/isee/igep00x0/igep00x0.c
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@ -138,6 +138,18 @@ int board_mmc_init(bd_t *bis)
}
#endif
void set_fdt(void)
{
switch (gd->bd->bi_arch_number) {
case MACH_TYPE_IGEP0020:
setenv("dtbfile", "omap3-igep0020.dtb");
break;
case MACH_TYPE_IGEP0030:
setenv("dtbfile", "omap3-igep0030.dtb");
break;
}
}
/*
* Routine: misc_init_r
* Description: Configure board specific parts
@ -150,6 +162,8 @@ int misc_init_r(void)
dieid_num_r();
set_fdt();
return 0;
}