[U-Boot] [PATCH V3 5/6] omap3_beagle: support findfdt and loadfdt for devicetree support

[Koen Kooi]

Op 15 jul. 2013, om 14:11 heeft Nishanth Menon <nm at ti.com> het volgende geschreven:

> For folks not using concatenated device tree with uImage, having
> an handy function to find and load device tree is very handy.
> 
> So introduce findfdt and loadfdt and run findfdt by default to make
> it easier on user scripts.
> 
> Signed-off-by: Nishanth Menon <nm at ti.com>
> ---
> V3: Fixes typo mistake reported in http://marc.info/?t=137358212300006&r=1&w=2
> 
> include/configs/omap3_beagle.h |   15 +++++++++++++++
> 1 file changed, 15 insertions(+)
> 
> diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
> index bdeee17..5ec8ade 100644
> --- a/include/configs/omap3_beagle.h
> +++ b/include/configs/omap3_beagle.h
> @@ -210,6 +210,8 @@
> #define CONFIG_EXTRA_ENV_SETTINGS \
> 	"loadaddr=0x80200000\0" \
> 	"rdaddr=0x81000000\0" \
> +	"fdt_high=0xffffffff\0" \
> +	"fdtaddr=0x80f80000\0" \
> 	"usbtty=cdc_acm\0" \
> 	"bootfile=uImage\0" \
> 	"ramdisk=ramdisk.gz\0" \
> @@ -250,6 +252,17 @@
> 		"omapdss.def_disp=${defaultdisplay} " \
> 		"root=${nandroot} " \
> 		"rootfstype=${nandrootfstype}\0" \
> +	"findfdt=" \
> +		"if test $beaglerev = AxBx; then " \
> +			"setenv fdtfile omap3-beagle.dtb; fi; " \
> +		"if test $beaglerev = Cx; then " \
> +			"setenv fdtfile omap3-beagle.dtb; fi; " \
> +		"if test $beaglerev = xMAB; then " \
> +			"setenv fdtfile omap3-beagle-xm.dtb; fi; " \
> +		"if test $beaglerev = xMC; then " \
> +			"setenv fdtfile omap3-beagle-xm.dtb; fi; " \
> +		"if test $fdtfile = undefined; then " \
> +			"echo WARNING: Could not determine device tree to use; fi; \0" \

With the remote chance of a future xM rev D, can you make the fallthrough be 'omap3-beagle-xm.dtb' intead of 'undefined'?