[beagleboard] Beaglebone - Adding splash screen to u-boot

Here is what I'm getting from bootchart. It takes about 3 seonds before anything happens. I'm making the assumption that this means that u-boot is taking 3 seconds...

Bootchart doesn't know about uboot, you need to use something like grabserial: https://plus.google.com/100242854243155306943/posts/6Kw69FFfzys

Here is what I get from grabserial… I know there is a 1 second delay that can be changed to 0, but I’m still not happy with u-boot. As someone suggested, I’ll try building all kernel arguments into u-boot instead of using uEnv.txt and see if that helps much.

Opening serial port /dev/ttyUSB1
115200:8N1:xonxoff=0:rtcdtc=0
Program will end in 30 seconds
Printing timing information for each line
Matching pattern ‘Starting kernel.*’ to set base time
Use Control-C to stop…
[0.000001 0.000001]
[0.000405 0.000404] U-Boot SPL 2011.09-00000-gf63b270-dirty (Apr 24 2012 - 09:51:01)
[0.010531 0.010126] Texas Instruments Revision detection unimplemented
[0.520104 0.509573] OMAP SD/MMC: 0
[0.580368 0.060264] reading u-boot.img
[0.590224 0.009856] reading u-boot.img
[0.620390 0.030166]
[0.620482 0.000092]
[0.620514 0.000032] U-Boot 2011.09-00000-gf63b270-dirty (Apr 24 2012 - 09:51:01)
[0.621577 0.001063]
[0.621613 0.000036] I2C: ready
[0.670303 0.048690] DRAM: 256 MiB
[1.050050 0.379747] No daughter card present
[1.050555 0.000505] NAND: HW ECC Hamming Code selected
[1.051167 0.000612] No NAND device found!!!
[1.051620 0.000453] 0 MiB
[1.051769 0.000149] MMC: OMAP SD/MMC: 0
[1.060651 0.008882] *** Warning - readenv() failed, using default environment
[1.066634 0.005983]
[1.110211 0.043577] Net: cpsw
[1.110508 0.000297] Hit any key to stop autoboot: 0
[2.180212 1.069704] SD/MMC found on device 0
[2.191694 0.011482] reading uEnv.txt
[2.194353 0.002659]
[2.194384 0.000031] 14 bytes read
[2.194566 0.000182] Loaded environment from uEnv.txt
[2.194975 0.000409] Importing environment from mmc …
[2.206105 0.011130] Loading file “/boot/uImage” from mmc device 0:2 xxa2
[2.410143 0.204038] 3145984 bytes read
[2.410547 0.000404] ## Booting kernel from Legacy Image at 80007fc0 …
[2.420523 0.009976] Image Name: Linux-3.2.21+
[2.421053 0.000530] Image Type: ARM Linux Kernel Image (uncompressed)
[2.430350 0.009297] Data Size: 3145920 Bytes = 3 MiB
[2.433466 0.003116] Load Address: 80008000
[2.435549 0.002083] Entry Point: 80008000
[2.438275 0.002726] Verifying Checksum … OK
[2.470121 0.031846] XIP Kernel Image … OK
[2.480767 0.010646] OK
[2.480813 0.000046]
[2.480827 0.000014] Starting kernel …
[0.009598 0.009598]
[0.029180 0.019582] Uncompressing Linux… done, booting the kernel.
[2.954216 2.925036] systemd-fsck[59]: Angstrom: clean, 4806/218592 files, 46635/873534 blocks
[5.410707 2.456491]
[5.426543 0.015836] .—O---.
[5.431993 0.005450] | | .-. o o
[5.436936 0.004943] | | |-----.-----.-----.| | .----…-----.-----.
[5.443069 0.006133] | | | __ | —’| ‘–.| .-’| | |
[5.454040 0.010971] | | | | | |— || --’| | | ’ | | | |
[5.454932 0.000892] ‘—’---’–’--’–. |-----’’----’’–’ ‘-----’-’-’-’
[5.457144 0.002212] -’ |
[5.457531 0.000387] ‘—’
[5.459227 0.001696]
[5.459261 0.000034] The Angstrom Distribution beaglebone ttyO0
[5.466914 0.007653]
[5.466954 0.000040] Angstrom v2012.01-core - Kernel 3.2.21+
[5.467643 0.000689]
[5.476671 0.009028] beaglebone login: