[SOLVED] Problem booting the pandaboard

by **asdil12** » Thu Jan 16, 2014 8:49 pm

The pandaboard hangs on boot and the led (D1) flashes two times (repeatedly).

Serial log:
$this->bbcode_second_pass_code('', '
Hit any key to stop autoboot: 0
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
544 bytes read in 3 ms (176.8 KiB/s)
Importing environment from mmc (uEnv.txt)...
Checking if uenvcmd is set ...
Running default loaduimage ...
4861552 bytes read in 238 ms (19.5 MiB/s)
Booting from mmc0 ...
## Booting kernel from Legacy Image at 82000000 ...
Image Name: Linux-3.7.10-9-ARCH
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 4861488 Bytes = 4.6 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.258728] _omap_mux_get_by_name: Could not find signal fref_clk0_out.sys_drm_msecure
[ 0.258850] _omap_mux_get_by_name: Could not find signal sys_nirq
[ 0.258880] _omap_mux_get_by_name: Could not find signal sys_nirq
[ 0.260009] _omap_mux_get_by_name: Could not find signal uart1_rx.uart1_rx
[ 0.260040] _omap_mux_get_by_name: Could not find signal uart1_rx.uart1_rx
[ 0.308410] omap_init_sham: platform not supported
[ 0.308441] omap_init_aes: platform not supported
[ 0.349151] unable to find transceiver of type USB2 PHY
[ 0.827301] unable to find transceiver of type USB2 PHY
[ 0.832824] HS USB OTG: no transceiver configured
[ 0.837829] musb-hdrc musb-hdrc.0: musb_init_controller failed with status -19
[ 0.854034] voltdm_scale: No voltage scale API registered for vdd_mpu
[ 0.861083] voltdm_scale: No voltage scale API registered for vdd_mpu
[ 1.239898] Power Management for TI OMAP4.
[ 1.281524] unable to find transceiver of type USB2 PHY
[ 1.314636] unable to find transceiver of type USB2 PHY
[ 1.721069] unable to find transceiver of type USB2 PHY
')

by **asdil12** » Fri Jan 17, 2014 11:56 am

Was a hardware problem: The SD-Card plastic case had a broken edge. Because of that, the card was recognized by uboot, but not by linux - so linux was waiting for the root device to appear.