just checked out and built u-boot for beaglebone black:
$ make am335x_boneblack_config
built, copied only MLO and u-boot.img to SD card so i could run u-boot off of SD card but boot the rest out of the eMMC, and got:
U-Boot# run bootcmd mmc1(part 0) is current device mmc_send_cmd : timeout: No status update SD/MMC found on device 1 reading uEnv.txt 26 bytes read in 3 ms (7.8 KiB/s) Loaded environment from uEnv.txt Importing environment from mmc ... 24808 bytes read in 43 ms (562.5 KiB/s) Wrong Image Format for bootm command ERROR: can't get kernel image! mmc1(part 0) is current device mmc_send_cmd : timeout: No status update SD/MMC found on device 1 reading uEnv.txt 26 bytes read in 3 ms (7.8 KiB/s) Loaded environment from uEnv.txt Importing environment from mmc ... 24808 bytes read in 43 ms (562.5 KiB/s) Wrong Image Format for bootm command ERROR: can't get kernel image! ## Error: "nandboot" not defined
which seems to be because the uImage file isn't being loaded into memory at ${loadaddr}, so that the subsequent command:
bootm ${loadaddr} - ${fdtaddr}
will naturally fail as there's no valid kernel image at that address. i'm looking at the new environment, and i don't see where the kernel image is loaded into memory. thoughts?
rday