Hi David,
On 05/11/2014 17:36, DaveKucharczyk wrote:
I'm trying to upgrade u-boot-2009.08 to u-boot-2014.07.
Our board is loosely based on the Freescale mx53loco board. I used the old board file and config header files and moved them over to new u-boot directory. Then using the new api to make changes.
I'm now trying to figure out how to port and turn on the MMU part below. I noticed the below code is not in the new mx53loco board file anymore and MMU_ON() doesn't exist either, since include/asm-arm/mmu.h is not included in new u-boot.
Instead of doing this, I think it will be easier if you start from the current mx53loco nad make the customization for your board. Freescale's U-Boot (2009.08) and mainline diverged, as well as some internal API.
So how do I get the same effect? I see arch/arm/cpu/armv8/cache_v8.c and arch/arm/lib/cache-cp15.c are the likely candidates?
You do not need to care about that. Cache is activated per default with mx5/mx6, if you do not explicitely deactivate it in your config file. You do not need to bother about MMU setup in your board files.
Best regards, Stefano Babic