On Wednesday 27 March 2013 09:15 PM, Tom Rini wrote: > On Tue, Mar 26, 2013 at 09:57:35AM +0530, Sricharan R wrote: > >> Now with kernel moving to all device tree, the default >> boot command is changed to pass the device tree blob. >> Also, adding the findfdt command to get the dt-blob >> based on the board. > [snip] >> @@ -153,7 +155,9 @@ >> "mmcargs=setenv bootargs console=${console} " \ >> "vram=${vram} " \ >> "root=${mmcroot} " \ >> - "rootfstype=${mmcrootfstype}\0" \ >> + "rootfstype=${mmcrootfstype}; " \ >> + "run findfdt; " \ >> + "fatload mmc ${mmcdev} ${fdtaddr} ${fdtfile}\0" \ > > I missed this part before, sorry. What we do on am335x_evm to allow > for easier overrides is: > - bootcmd runs findfdt (since we'll need it in all cases). > - Enable CONFIG_CMD_FS_GENERIC > - Add a 'loadfdt' command that can be called out ala loaduimage > - Use 'load' in loadfdt/loaduimage so that we don't care what the > underlying filesystem type is. > - Use bootdir to help with overrides as well: > loaduimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile} > loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile} > > So that we can easily grab from the first partition (FAT) or another > partition (ext3/4/etc). > Yeah, liked this. Thanks for detailed explanation. Will add this then for better.
Regards, Sricharan _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot