[U-Boot-Users] uboot 1.1.2 problem

[Jerry Van Baren <gerald.vanbaren@smiths-aerospace.com>]

Your SDRAM configuration is wrong or your board layout doesn't support 
the faster speeds.

FAQ:
http://www.denx.de/twiki/bin/view/DULG/UBootCrashAfterRelocation

gvb


Yigit Can wrote:
> 
> 
> Hello,
> 
> We have recently ported uboot1.1.2 to our propriatery mpc852T board in 
> 50 Mhz and it works fine.
> 
> but in 100Mhz version of the same board, the linux crashes with output 
> below. We are only changing the CONFIG_8XX_CPUCLK_DEFAULT 50000000 to 
> 100000000 with the mptpr value to ensure refresh cycles of the sdram.
> 
> we have adjusted the refresh timing of the sdram to 12.5 us successfully 
> but the linux keeps crashing. We have also tried the different versions 
> of the eldk but it keeps crashing at the same place. The board passes 
> from the dram test in uboot.
> 
> we using micron 48lc4m32b2-7 as 2 banks. Can upm ram array cause 
> problems like these or
> 
> Where can be the problem ? If you can help we will be very appriciate.
> 
> Thank you.
> 
> Best Regards
> Yi?it Can
> 
> 
> output :
> 
> 
> U-Boot (1.1.2) (May 23 2005 - 14:34:07)
> 
> CPU:   MPC852TxxZPnn at 100 MHz [40.0...133.0 MHz]
>       4 kB I-Cache 4 kB D-Cache FEC present
> Board: MPC852T (Rev:ABA)
> DRAM:  32 MB
> Testing DRAM from 0x00000000 to 0x02000000
> DRAM test phase 1:
> DRAM test phase 2:
> DRAM test passed.
> Top of RAM usable for U-Boot at: 02000000
> Reserving 510k for U-Boot at: 01f80000
> Reserving 1024k for malloc() at: 01e80000
> Reserving 60 Bytes for Board Info at: 01e7ffc4
> Reserving 52 Bytes for Global Data at: 01e7ff90
> Stack Pointer at: 01e7ff78
> New Stack Pointer is: 01e7ff78
> Now running in RAM - U-Boot at: 01f80000
> FLASH:
> ## Get flash bank 1 size @ 0x40000000
> Manuf. ID @ 0x40000000: 0x00010001
> Manufacturer: AMD
> Device ID @ 0x40000004: 0x227e227e
> Chip: AMLV320MT
> ## Prelim. Flash bank size: 00800000
> ## Before remap: BR0: 0x40000001    OR0: 0xe00005f0
> ## BR0: 0x40000001    OR0: 0xff8005f0
> Manuf. ID @ 0x40000000: 0x00010001
> Manufacturer: AMD
> Device ID @ 0x40000004: 0x227e227e
> Chip: AMLV320MT
> Protect monitor: 40000000 ... 4007b1ff
> flash_protect ON: from 0x40000000 to 0x4007B1FF
> protect on 0
> protect on 1
> protect on 2
> protect on 3
> Protect primary   environment: 40020000 ... 4003ffff
> flash_protect ON: from 0x40020000 to 0x4003FFFF
> protect on 1
> Protect redundand environment: 40040000 ... 4005ffff
> flash_protect ON: from 0x40040000 to 0x4005FFFF
> protect on 2
> 8 MB
> In:    serial
> Out:   serial
> Err:   serial
> Reset Ethernet PHY
> U-Boot relocated to 01f80000
> Net:   FEC ETHERNET
> 
> Type "run flash_nfs" to mount root filesystem over NFS
> 
> ### main_loop entered: bootdelay=3
> 
> ### main_loop: bootcmd="run netboot"
> Hit any key to stop autoboot:  0
> Trying FEC ETHERNET
> Using FEC ETHERNET device
> TFTP from server 192.168.2.54; our IP address is 192.168.2.127
> Filename 'pImage'.
> Load address: 0x100000
> Loading: #################################################################
>         ###############################################
> done
> Bytes transferred = 571491 (8b863 hex)
> Trying FEC ETHERNET
> Using FEC ETHERNET device
> TFTP from server 192.168.2.54; our IP address is 192.168.2.127
> Filename 'pRamdisk'.
> Load address: 0x200000
> Loading: #################################################################
>         #################################################################
>         #################################################################
>         #################################################################
>         #################################################################
>         #################################################################
>         #################################################################
>         ###########################################
> done
> Bytes transferred = 2549563 (26e73b hex)
> ## Booting image at 00100000 ...
>   Image Name:   Linux-2.4.4
>   Created:      2005-05-03  11:22:39 UTC
>   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>   Data Size:    571427 Bytes = 558 kB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
>   Uncompressing Kernel Image ... OK
> ## Current stack ends at 0x01E7F948 => set upper limit to 0x00800000
> ## cmdline at 0x007FFF00 ... 0x007FFF4D
> bd address  = 0x01E7FFC4
> memstart    = 0x00000000
> memsize     = 0x02000000
> flashstart  = 0x40000000
> flashsize   = 0x00800000
> flashoffset = 0x0007B200
> sramstart   = 0x00000000
> sramsize    = 0x00000000
> immr_base   = 0xFFF00000
> bootflags   = 0x00000001
> intfreq     =    100 MHz
> busfreq     =     50 MHz
> ethaddr     = AA:BB:CC:DD:EE:FF
> IP addr     = 192.168.2.127
> baudrate    = 115200 bps
> ## Loading RAMDisk Image at 00200000 ...
>   Image Name:   Application ramdisk image
>   Created:      2005-05-10   7:13:09 UTC
>   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
>   Data Size:    2549499 Bytes =  2.4 MB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
> ## initrd at 0x00200040 ... 0x0046E73A (len=2549499=0x26E6FB)
>   Loading Ramdisk to 01c10000, end 01e7e6fb ... OK
> ## Transferring control to Linux (at address 00000000) ...
> Linux version 2.4.4 (root at suse) (gcc version 2.95.4 20010319 
> (prerelease/franzo/20011204)) #173 Tue May 3 14:22:20 EEST 2005
> On node 0 totalpages: 8192
> zone(0): 8192 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: ip=192.168.2.127:192.168.2.54:192.168.2.200::::off 
> panic=1 ramdisk_size=9000k
> Decrementer Frequency: 6250000
> Calibrating delay loop... 99.73 BogoMIPS
> Oops: kernel access of bad area, sig: 11
> NIP: C002B764 XER: 00002E00 LR: C002B758 SP: C014DF40 REGS: c014de90 
> TRAP: 0300
> MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
> DAR: C004F2E8, DSISR: 82000000
> TASK = c014c020[0] 'swapper' Last syscall: 0
> last math 00000000 last altivec 00000000
> GPR00: 81630009 C014DF40 C014C020 00000001 00009032 001AA000 C0170000 
> 00000000
> GPR08: 00010000 00000028 00000000 FFFFFFFF FFFFFFFF 00004000 01FFAA00 
> 007FFF4D
> GPR16: 00000001 00000000 007FFF00 01FFACD8 00000000 FFFFFFFF 01E7FC10 
> 00000003
> GPR24: E2E26C18 007FFEC0 01A079F4 00000000 0340F3E9 C004F308 C004F2E0 
> FFFFFFFF
> Call backtrace:
> 007FFEC0 C002C190 C015ED70 C015EF94 C015D5E4 C015C6D4 C00021E4
> Kernel panic: Attempted to kill the idle task!
> In idle task - not syncing
> Rebooting in 1 seconds..
> 
> 
>