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[U-Boot] current version of u-boot doesn't seem to load kernel for beaglebone black

Message ID alpine.DEB.2.02.1309040530430.19283@oneiric
State Not Applicable
Delegated to: Tom Rini
Headers show

Commit Message

Robert P. J. Day Sept. 4, 2013, 9:33 a.m. UTC 
On Tue, 3 Sep 2013, Robert P. J. Day wrote:

>
>   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?

  following up on my own post, it would *seem* that what one needs is
the following patch:



otherwise, i just don't see where the kernel image is going to be
loaded for a BBB config and build, and it's *always* going to fail
getting a proper kernel image. thoughts?

rday
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Patch

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index e0a87f8..7969e07 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -132,7 +132,9 @@ 
                                "echo Running uenvcmd ...;" \
                                "run uenvcmd;" \
                        "fi;" \
-                       "run mmcloados;" \
+                       "if run loaduimage; then " \
+                               "run mmcloados;" \
+                       "fi;" \
                "fi;\0" \
        "spiboot=echo Booting from spi ...; " \
                "run spiargs; " \