On Wed, 2003-04-02 at 18:44, Wolfgang Denk wrote:
Hi Erwin,
in message 1049282647.27232.70.camel@drake.erwin.muffin.org you wrote:
Well in cpu/mpc8xx/cpu_init.c br0 and or0 are always set to CFG_BR0_PRELIM and CFG_OR0_PRELIM. So if the bus width is set to 16 in CFG_BR0_PRELIM my board will not run when it is a dual-FLASH version, and when i set it to 32 bit it won't run when its a single-FLASH version. And i don't want to make two different bootloaders, since that flash configuration is the only difference. So what i did was just masking out the BR_PS_MSK to keep those the same as they where on reset, and that works fine.
I see. You should be able to use something like this in such a case:
#define CFG_BR0_PRELIM ((memctl->memc_br0 & BR_PS_MSK) | your_other_bits)
Exactly what i was looking for :-)
Thanx,
Erwin
Best regards,
Wolfgang Denk