diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2013-06-18 20:36:52 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2013-06-18 20:37:52 +0400 |
| commit | 87107d89052bcec1fe91b309631de4ed294a5171 (patch) | |
| tree | 70fb6458acb0b7dce92a6c1fb41fcb000f4942a1 | |
| parent | 0e2238ec27cb320efd73f3ea7cfc730539fc011d (diff) | |
| download | linux-87107d89052bcec1fe91b309631de4ed294a5171.tar.xz | |
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>
| -rw-r--r-- | arch/arm/mach-exynos/common.c | 48 |
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) { |