On Wednesday 13 January 2010 18:43:31 anupbeh...@gmail.com wrote: > I am using board having ppc440x5 core with customized chip and not a > standard 440Gx. > > Board is using Denali controller, as the register are completely different > we can not use the standard u-boot initialization.
OK, I see. So you have a customized non-440EPx/GRx chip with the Denali DDR(2) controller. You are aware that we have a full blown Denali DDR(2) controller setup routine with SPD detection? This one is only for 440EPx/GRx right now, since these were the only PPC4xx variants equipped with this core till now: cpu/ppc4xx/denali_spd_ddr2.c cpu/ppc4xx/denali_data_eye.c You should try to use this code as it is known to work on other PPC4xx platforms in various configurations. > We performed board specific initialization and training for DDR2. > > When the code enter into board_init_r() console shows following messages: > > Top of RAM usable for U-Boot at: 20000000 > Reserving 178k for U-Boot at: 1ffd3000 > Reserving 1040k for malloc() at: 1fecf000 > Reserving 128 Bytes for Board Info at: 1fecef80 > Reserving 64 Bytes for Global Data at: 1fecef40 > New Stack Pointer is: 1fecef28 > > Now running in RAM - U-Boot at: 1ffd3000 > Bus Fault @ 0x1ffd5764, fixup 0x00000000 > Machine Check Exception. > > NIP: 1FFD5764 XER: 00000000 LR: 1FFD5764 REGS: 1fecee20 TRAP: 0200 DEAR: > 00000000 > MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00 > > GPR00: 1FFD5338 1FECEF10 1FECEF40 1FFD3000 1FFD6814 00000034 00000034 > 1FFD5764 > GPR08: 00000600 00002098 00000030 2FAF07FE FFFFFFFF C000B330 20002A00 > 20013000 > GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 00000000 > GPR24: 00000000 1FECEF40 1FFD3000 1FED3000 1FFD3000 1FECEF80 20002B10 > 20013000 > Call backtrace: > 1FFD680C 1FFD56D8 A462C4EC > machine check > > > We tried to debug it with BDI as per steps given @ > http://www.denx.de/wiki/view/DULG/DebuggingUBoot#Section_10.1.2. > > We have verified by using BDI that uboot code is placed in DDR, but getting > an exception and u-boot is in continuously reboot mode. Did you try adding some printf's to board_init_r(), to see where exactly this crash occurs? That's what I would do. > Will it ok if we disable the MSR for ME,EE,CE? Or still it looks DDR > initialization issue ? Could be DDR, could be something else. You need to further debug this. Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
