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authorArnd Bergmann <arnd@arndb.de>2013-06-19 01:36:52 +0900
committerKukjin Kim <kgene.kim@samsung.com>2013-06-19 01:37:52 +0900
commit87107d89052bcec1fe91b309631de4ed294a5171 (patch)
tree70fb6458acb0b7dce92a6c1fb41fcb000f4942a1 /arch/arm/mach-exynos
parent0e2238ec27cb320efd73f3ea7cfc730539fc011d (diff)
downloadlinux-linaro-stable-87107d89052bcec1fe91b309631de4ed294a5171.tar.gz
ARM: EXYNOS: Remove legacy L2X0 initialization
Since Exynos is now supporting only DT-based boot, the old L2X0 initialization code is not needed anymore, so exynos4_l2x0_cache_init() can be greatly simplified. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r--arch/arm/mach-exynos/common.c48
1 files changed, 4 insertions, 44 deletions
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 561890fbb666..e886154f7f0b 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -412,59 +412,19 @@ static int __init exynos_core_init(void)
}
core_initcall(exynos_core_init);
-#ifdef CONFIG_CACHE_L2X0
static int __init exynos4_l2x0_cache_init(void)
{
int ret;
- if (soc_is_exynos5250() || soc_is_exynos5440())
- return 0;
-
ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
- if (!ret) {
- l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
- clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
- return 0;
- }
-
- if (!(__raw_readl(S5P_VA_L2CC + L2X0_CTRL) & 0x1)) {
- l2x0_saved_regs.phy_base = EXYNOS4_PA_L2CC;
- /* TAG, Data Latency Control: 2 cycles */
- l2x0_saved_regs.tag_latency = 0x110;
-
- if (soc_is_exynos4212() || soc_is_exynos4412())
- l2x0_saved_regs.data_latency = 0x120;
- else
- l2x0_saved_regs.data_latency = 0x110;
-
- l2x0_saved_regs.prefetch_ctrl = 0x30000007;
- l2x0_saved_regs.pwr_ctrl =
- (L2X0_DYNAMIC_CLK_GATING_EN | L2X0_STNDBY_MODE_EN);
-
- l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
-
- __raw_writel(l2x0_saved_regs.tag_latency,
- S5P_VA_L2CC + L2X0_TAG_LATENCY_CTRL);
- __raw_writel(l2x0_saved_regs.data_latency,
- S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL);
-
- /* L2X0 Prefetch Control */
- __raw_writel(l2x0_saved_regs.prefetch_ctrl,
- S5P_VA_L2CC + L2X0_PREFETCH_CTRL);
-
- /* L2X0 Power Control */
- __raw_writel(l2x0_saved_regs.pwr_ctrl,
- S5P_VA_L2CC + L2X0_POWER_CTRL);
-
- clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
- clean_dcache_area(&l2x0_saved_regs, sizeof(struct l2x0_regs));
- }
+ if (ret)
+ return ret;
- l2x0_init(S5P_VA_L2CC, L2_AUX_VAL, L2_AUX_MASK);
+ l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
+ clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
return 0;
}
early_initcall(exynos4_l2x0_cache_init);
-#endif
static int __init exynos_init(void)
{