Re: [U-Boot-Users] added dcache_disable(), dcache_status() stubs to ARM920T with no MMU support

On 2/22/07, Olexiy Avramchenko aolexiy@gmail.com wrote:

Hello, list

I'm using U-Boot for ARM920T target to load ELF image on board. ELF loader ("common/cmd_elf.c") requires dcache_status() and dcache_disable() regardless of whether MMU is used or not.

I added two stubs in "cpu/arm920t/cpu.c" for the case when MMU is not used, but different CPUs may also be affected by this.

I didn't look where else it's used, but adding a null stub for something like dcache disable functionality strikes me as a really bad idea. This could lead to some hard to find bugs in the future when someone expects the cache to be disabled.