[U-Boot] MPC850: strange problem with icache

Hi Folks, I'm porting u-boot-1.3.1 to customer board, which includes MPC850 and 32MB SDRAM. When I turned off icache, bus can work correctly under 25MHz/50MHz clock frequence. Note that CPU is working under 50MHz. However, the board only can work with bus frequence of 25MHz with enabled icache. If

Re: [U-Boot] MPC850: strange problem with icache

Dear Guowen SHAN, > > In message > you wrote: > > > > I'm porting u-boot-1.3.1 to customer board, which includes MPC850 and > 32MB SDRAM. > > When I turned off icache, bus can work correctly under 25MHz/50MHz clock > frequence. > > Note that CPU is work