From: Wu, Josh <Josh.wu@atmel.com>
Date: Mon, 27 Jul 2015 03:40:17 +0000 (+0800)
Subject: ARM: cache: implement a default weak flush_cache() function
X-Git-Tag: KARO-TX6-2015-09-18~447
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=commitdiff_plain;h=b2eb6f032df14ca256a04d1fc146d0f3c303e041;hp=b2eb6f032df14ca256a04d1fc146d0f3c303e041

ARM: cache: implement a default weak flush_cache() function

Current many cpu use the same flush_cache() function, which just call
the flush_dcache_range().
So implement a weak flush_cache() for all the cpus to use.

In original weak flush_cache() in arch/arm/lib/cache.c, there has some
code for ARM1136 & ARM926ejs. But in the arch/arm/cpu/arm1136/cpu.c and
arch/arm/cpu/arm926ejs/cache.c, there implements a real flush_cache()
function as well. That means the original code for ARM1136 & ARM926ejs
in weak flush_cache() of arch/arm/lib/cache.c is totally useless.

So in this patch remove such code in flush_cache() and only call
flush_dcache_range().

Signed-off-by: Josh Wu <josh.wu@atmel.com>
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