On 07/26/2011 10:25 AM, Jason Liu wrote:
CONFIG_L2_OFF is obsolete after the following commit:
e47f2db5371047eb9bcd115fee084e6a8a92a239 armv7: rename cache related CONFIG flags Replace the cache related CONFIG flags with more meaningful names. Following are the changes: CONFIG_L2_OFF -> CONFIG_SYS_L2CACHE_OFF
But the above commit does not clean up all the mx53 board config file. This patch does it by using CONFIG_SYS_L2CACHE_OFF instead of _L2_OFF
Hi Jason,
I agree that CONFIG_L2_OFF is obsolete and must be removed. However, I do not see any application of CONFIG_SYS_L2CACHE_OFF.
If I grep into u-boot code, this config is not used at all for i.MX. Indeed, I can find application for OMAP boards:
arch/arm/cpu/armv7/omap3/board.c:#ifndef CONFIG_SYS_L2CACHE_OFF arch/arm/cpu/armv7/omap3/board.c:#ifndef CONFIG_SYS_L2CACHE_OFF arch/arm/cpu/armv7/s5pc1xx/cache.S:#ifndef CONFIG_SYS_L2CACHE_OFF arch/arm/cpu/armv7/omap4/board.c:#ifndef CONFIG_SYS_L2CACHE_OFF
So this setup is usefulness, I think.
By the way (and I know it is not the same topic), do you mean maybe CONFIG_SYS_DCACHE_OFF ? Have you read the thread related to cache problems on MX51 ? Maybe we have to disable D_CACHE until we find a fix for the drivers. What do you mean ?
Best regards, Stefano Babic