diff options
| author | Peter De Schrijver <pdeschrijver@nvidia.com> | 2011-12-14 15:03:20 (GMT) |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2011-12-18 04:15:22 (GMT) |
| commit | 01548673fa15762137539d565767531eb4fef743 (patch) | |
| tree | 438f73d0a93a8567b73ad8ac0a1e5ade84bf9cf3 /arch/arm/mach-tegra | |
| parent | 9bfc3f0d48c0e6aac05b02638dd0b502b522dec7 (diff) | |
| download | linux-01548673fa15762137539d565767531eb4fef743.tar.xz | |
arm/tegra: generalize L2 cache initialization
Generalize L2 cache initialization and discover L2 cache associativity at
runtime.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-tegra')
| -rw-r--r-- | arch/arm/mach-tegra/common.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 007d34f..a5c14dc 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -75,15 +75,20 @@ static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = { }; #endif -static void __init tegra_init_cache(void) +static void __init tegra_init_cache(u32 tag_latency, u32 data_latency) { #ifdef CONFIG_CACHE_L2X0 void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000; + u32 aux_ctrl, cache_type; - writel_relaxed(0x331, p + L2X0_TAG_LATENCY_CTRL); - writel_relaxed(0x441, p + L2X0_DATA_LATENCY_CTRL); + writel_relaxed(tag_latency, p + L2X0_TAG_LATENCY_CTRL); + writel_relaxed(data_latency, p + L2X0_DATA_LATENCY_CTRL); - l2x0_init(p, 0x6C080001, 0x8200c3fe); + cache_type = readl(p + L2X0_CACHE_TYPE); + aux_ctrl = (cache_type & 0x700) << (17-8); + aux_ctrl |= 0x6C000001; + + l2x0_init(p, aux_ctrl, 0x8200c3fe); #endif } @@ -94,6 +99,6 @@ void __init tegra20_init_early(void) tegra_init_fuse(); tegra2_init_clocks(); tegra_clk_init_from_table(tegra20_clk_init_table); - tegra_init_cache(); + tegra_init_cache(0x331, 0x441); } #endif |