Hi Mike,
I'm very new to Powerpc so take my words with a lot of precautions.
I see two possibilities with your problem:
1. As U-Boot seems to reset after "Stack Pointer at: 0ffa9f28", you are likely to encounter a relocation issue. As I have learnt it the hard way (I cannot count the number of times my U-Boot hanged there), you may have misconfigured the SDRAM module. Check other code using the same chips, memory refresh timers and memory controller registers (SDRAM init sequence is configured in the initdram() function of your board specific .c file).
http://www.denx.de/wiki/view/DULG/UBootCrashAfterRelocation http://www.denx.de/wiki/view/DULG/SDRAM
2. If your board always reboots at the same moment, whatever the U-Boot configuration is, you may have forgot to handle or deactivate your cpu watchdog. On my mpc8270 board, I can disable them with the CFG_SYPCR register; on yours, it seems to be with BCSR5[SWEN], but I'm really not sure (and it seems to be off by default). Also check the CONFIG_WATCHDOG option in U-Boot. Note that if you have slave cores on your board, you may also need to handle them.
At last, perhaps try with a current version of U-Boot, you may get more help with it.
I hope that this could help you. If not, just ignore, I just try to give back the help I got there.
Good luck, Rémi
On Tue, Sep 23, 2008 at 10:16 PM, Remi Lefevre rlefevre@gmail.com wrote:
Hi Mike,
I'm very new to Powerpc so take my words with a lot of precautions.
I see two possibilities with your problem:
- As U-Boot seems to reset after "Stack Pointer at: 0ffa9f28", you are
likely to encounter a relocation issue. As I have learnt it the hard way (I cannot count the number of times my U-Boot hanged there), you may have misconfigured the SDRAM module. Check other code using the same chips, memory refresh timers and memory controller registers (SDRAM init sequence is configured in the initdram() function of your board specific .c file).
http://www.denx.de/wiki/view/DULG/UBootCrashAfterRelocation http://www.denx.de/wiki/view/DULG/SDRAM
- If your board always reboots at the same moment, whatever the U-Boot
configuration is, you may have forgot to handle or deactivate your cpu watchdog. On my mpc8270 board, I can disable them with the CFG_SYPCR register; on yours, it seems to be with BCSR5[SWEN], but I'm really not sure (and it seems to be off by default). Also check the CONFIG_WATCHDOG option in U-Boot. Note that if you have slave cores on your board, you may also need to handle them.
At last, perhaps try with a current version of U-Boot, you may get more help with it.
I hope that this could help you. If not, just ignore, I just try to give back the help I got there.
Good luck, Rémi
On Tue, Sep 23, 2008 at 8:57 PM, mike zheng mail4mz@gmail.com wrote:
Hello,
I am having problem when I try to bootup MPC8360EMDS with Uboot1.2. The following are logs. The board reboot when the uboot tried to run on the RAM. Any idea on this issue?
Thanks,
Mike
U-Boot 1.2.1 (Sep 23 2008 - 14:35:42) MPC83XX
Clock configuration: Coherent System Bus: 264 MHz Core: 528 MHz QE: 396 MHz Local Bus Controller: 264 MHz Local Bus: 66 MHz DDR: 264 MHz DDR Secondary: 264 MHz SEC: 88 MHz I2C1: 264 MHz I2C2: 264 MHz CPU: MPC8360E, Rev: 21 at 528 MHz Board: Freescale MPC8360EMDS I2C: ready DRAM: cs0_bnds = 0x0000000f cs0_config = 0x80000102 DDR:bar=0x00000000 DDR:ar=0x8000001b DDR:Module maximum data rate is: 400Mhz DDR:Effective data rate is: 266Mhz DDR:The MSB 1 of CAS Latency is: 4 Errata DDR6 (debug_reg=0x002c0000) DDR:timing_cfg_1=0x37353321 DDR:timing_cfg_2=0x00000800
DDR DIMM: data bus width is 64 bit with ECC DDR:sdram_mode=0x00000032 DDR:sdram_interval=0x045b0100 DDR:sdram_clk_cntl=0x00000000 DDRC ECC mode: OFF DDR:sdram_cfg=0xc2000000
SDRAM on Local Bus: 64 MB DDR RAM: 256 MB Top of RAM usable for U-Boot at: 10000000 Reserving 205k for U-Boot at: 0ffcc000 Reserving 136k for malloc() at: 0ffaa000 Reserving 76 Bytes for Board Info at: 0ffa9fb4 Reserving 104 Bytes for Global Data at: 0ffa9f4c Stack Pointer at: 0ffa9f28 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot