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| author |   Amit Daniel Kachhap <amit.kachhap@linaro.org> | 2012-03-08 02:09:12 -0800 |
|---|---|---|
| committer |   Kukjin Kim <kgene.kim@samsung.com> | 2012-03-09 07:04:51 -0800 |
| commit | 6cdeddcc8149672d4b888709d063825a80304d09 (patch) | |
| tree | 25d56df27ad372609e97bff02507f7fd54f295a3 /arch/arm/mach-exynos/common.c | |
| parent | ARM: EXYNOS: remove useless code to save/restore L2 (diff) | |
| download | linux-dev-6cdeddcc8149672d4b888709d063825a80304d09.tar.xz linux-dev-6cdeddcc8149672d4b888709d063825a80304d09.zip | |
ARM: EXYNOS: Enable l2 configuration through device tree
This patch enables calling generic l2 setup functions if device tree is used.
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/common.c')
| -rw-r--r-- | arch/arm/mach-exynos/common.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 9ff38aa08fd0..cb5ad8c1fea8 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -47,6 +47,8 @@ #include <plat/regs-serial.h> #include "common.h" +#define L2_AUX_VAL 0x7C470001 +#define L2_AUX_MASK 0xC200ffff static const char name_exynos4210[] = "EXYNOS4210"; static const char name_exynos4212[] = "EXYNOS4212"; @@ -443,6 +445,14 @@ core_initcall(exynos4_core_init); #ifdef CONFIG_CACHE_L2X0 static int __init exynos4_l2x0_cache_init(void) { + int ret; + 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 */ @@ -476,8 +486,7 @@ static int __init exynos4_l2x0_cache_init(void) clean_dcache_area(&l2x0_saved_regs, sizeof(struct l2x0_regs)); } - l2x0_init(S5P_VA_L2CC, 0x7C470001, 0xC200ffff); - + l2x0_init(S5P_VA_L2CC, L2_AUX_VAL, L2_AUX_MASK); return 0; } |