Thanks a lot. I am going to follow your advice and start rolling. Lokesh
-----Original Message----- From: li [mailto:[EMAIL PROTECTED] Sent: Monday, June 23, 2003 12:45 PM To: Lokesh Kumar Cc: linuxppc-embedded at lists.linuxppc.org Subject: Re: Booting linux on MPC custom Board Hi Kumar, 1. change the TEXT_BASE definition in the board/yourboardname/config.mk to pointer to sdram base 2. change the CFG_FLASH_BASE and CFG_MONITOR_BASE definition to that address in the include/config_yourboardname.h 3. comment the BR0 reset in section in cpu/mpc8xx/cpu_init.c 4. comment the sdram init function(initdram), just set the ram size manually now, you can compile the ppcboot, and download the ppcboot.bin to the address which the TEXT_BASE point to and make it run. Good Luck! Li > > Hi, > I have a custom board with a custom bootloader. The board is based on > MPC855T, with 8MB flash and 32MB RAM. > > I have to boot linux on this board. The issue I have is this - I have to use > the custom bootloader (to be able to boot older app as well). I think I have > two ways to go - > > 1. Custom bootloader enhanced to be able to load Linux. I do not think it is > faster approach given the time required. > > 2. Tell custom bootloader to load another bootloader like PPCBOOT (U-BOOT) > and then let it load Linux. Now, to go this route, I will have to run > PPCBOOT from RAM. Reading documentation of PPCBOOT, it says that it runs > from FLASH and relocates itself to RAM. > How can run PPCBOOT from RAM directly and then tell it to load > Linux?? Any HELP would be appreciated. > > > Lokesh Kumar > Wireless Matrix USA Inc. > 703-262-4032 > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
