Hi,

The ppcboot is a very old version of the bootloader. Why don't you use the lastest version of the u-boot: u-boot-1.1.2?

Tien

-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net]On Behalf Of junping feng Sent: Wednesday, July 13, 2005 7:47 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] Problem about sdram initialization!

Hi,I have a little problem with the ppcboot startup,the BDI2000 can program ppcboot.bin into FLASH .Board information can print through serial interface after the first initialization of board now. But when it run to the function relocate_code(in the /cpu/mpc8260/start.s),it don't run continually. Through LED on the board ,I find that it stops at the code below:

addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET mtlr r0 blr in_ram:

The size of SDRAM size is 16MB,flash is 8MB,CPU is MPC8250,and my costum board is like the board MPC8260ADS.Othe infomation with my board is below: CLKIN:33M MPTPR:0x10 PSRT:0x1900 BR2(control SDRAM): 0x0000 0041 OR2:0xFF80 3080 PSDMR: 0x2869 A452 0x0869 A452 0x1869 A452 0x4069 A452 SIUMCR：0x0A20 0000

Please give me a hand.

Thanks in advance!

__________________________________________________ 赶快注册雅虎超大容量免费邮箱? http://cn.mail.yahoo.com