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ARM: EXYNOS: Remove the L2 cache latency setting for EXYNOS5 

Since SYSRAM set the L2 cache latency on EXYNOS5 SoCs,
no longer need that in the kernel. It helps to reduce
booting time (no need cache disable and cache enable).

Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Boojin Kim 2012-06-27 09:45:42 +09:00 committed by Kukjin Kim
parent 65ab16fd38
commit c8dd5110de
1 changed files with 0 additions and 25 deletions
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25
arch/arm/mach-exynos/common.c
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@ -712,31 +712,6 @@ static int __init exynos4_l2x0_cache_init(void)
early_initcall(exynos4_l2x0_cache_init);
#endif
static int __init exynos5_l2_cache_init(void)
{
unsigned int val;
if (!soc_is_exynos5250())
return 0;
asm volatile("mrc p15, 0, %0, c1, c0, 0\n"
"bic %0, %0, #(1 << 2)\n" /* cache disable */
"mcr p15, 0, %0, c1, c0, 0\n"
"mrc p15, 1, %0, c9, c0, 2\n"
: "=r"(val));
val |= (1 << 9) | (1 << 5) | (2 << 6) | (2 << 0);
asm volatile("mcr p15, 1, %0, c9, c0, 2\n" : : "r"(val));
asm volatile("mrc p15, 0, %0, c1, c0, 0\n"
"orr %0, %0, #(1 << 2)\n" /* cache enable */
"mcr p15, 0, %0, c1, c0, 0\n"
: : "r"(val));
return 0;
}
early_initcall(exynos5_l2_cache_init);
static int __init exynos_init(void)
{
printk(KERN_INFO "EXYNOS: Initializing architecture\n");