This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
hi Guys:
when i boot from SD card bealgebone is ok, but in my new board, it looks like a problem.
U-Boot 2011.09 (Aug 28 2013 - 11:20:39)
I2C: ready
DRAM: 256 MiB
WARNING: Caches not enabled
NAND: HW ECC Hamming Code selected
No NAND device found!!!
0 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment
Net: cpsw
Hit any key to stop autoboot: 0
SD/MMC found on device 0
reading uEnv.txt
33 bytes read
Loaded environment from uEnv.txt
Importing environment from mmc ...
reading uImage
2205880 bytes read
## Booting kernel from Legacy Image at 80007fc0 ...
Image Name: Linux-3.2.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2205816 Bytes = 2.1 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
XIP Kernel Image ... OK
OK
Starting kernel ...
[ 0.252288] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 0.272735] sr_init: platform driver register failed
[ 0.294006] drivers/rtc/hctosys.c: unable to open rtc device (rtc0) ---------- stop here
beause the SD card with flying line, so i try spiflash
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
List of all partitions:
No filesystem could mount root, tried: jffs2
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Backtrace:
[<c00165c0>] (dump_backtrace+0x0/0x110) from [<c029325c>] (dump_stack+0x18/0x1c)
r6:00008000 r5:cf81b006 r4:c03ff908 r3:c03d804c
[<c0293244>] (dump_stack+0x0/0x1c) from [<c02932bc>] (panic+0x5c/0x184)
[<c0293260>] (panic+0x0/0x184) from [<c0388c8c>] (mount_block_root+0x240/0x290)
r3:cf82ff34 r2:80000000 r1:cf82ff60 r0:c0336e77
r7:c03ae524
[<c0388a4c>] (mount_block_root+0x0/0x290) from [<c0388e1c>] (mount_root+0x54/0x68)
[<c0388dc8>] (mount_root+0x0/0x68) from [<c0388f98>] (prepare_namespace+0x168/0x1bc)
r5:c03ae535 r4:c03fe9e0
[<c0388e30>] (prepare_namespace+0x0/0x1bc) from [<c03888c0>] (kernel_init+0xf0/0x124)
r5:c03b6a70 r4:c03fe980
[<c03887d0>] (kernel_init+0x0/0x124) from [<c0039274>] (do_exit+0x0/0x604)
r5:c03887d0 r4:00000000
i have test the kernel for WPI board. why in my new board is test error. i'm sure select jiffs2 filesysterm support in kernel and the cmdline is
Kernel command line: console=ttyO0,115200n8 root=/dev/mtdblock4 rw rootfstype=jffs2 ip=none and i burning the image using myself spi_partitions
0x0 -0x20000 MLO.spi 82.8k
0x20000-0x60000 u-boot.bin 251.7k
0x60000-0x70000 u-boot env
0x70000-0x370000 uImage 2.0Mb
0x370000-0x1000000 filesystem 12.43Mb
你好,这个问题不是rtc的问题,我已经找到了解决的办法,问题出现在了24c256w这颗芯片,因为我们把这个eeprom去掉了导致了setup_beaglebone无法启动,所以出现了上述现象。谢谢