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| author |   Danny Huang <dahuang@nvidia.com> | 2012-11-15 15:42:34 +0800 |
|---|---|---|
| committer |   Stephen Warren <swarren@nvidia.com> | 2012-11-15 14:36:59 -0700 |
| commit | f8ddda713b9ea6c10012429c089c81bc9a5cd49f (patch) | |
| tree | c469d4819326e0aadccd58f5523bd5f4d1f70852 /arch/arm/mach-tegra/fuse.c | |
| parent | ARM: tegra: Add speedo-based process identification (diff) | |
| download | linux-dev-f8ddda713b9ea6c10012429c089c81bc9a5cd49f.tar.xz linux-dev-f8ddda713b9ea6c10012429c089c81bc9a5cd49f.zip | |
ARM: tegra: Tegra30 speedo-based process identification
This patch adds speedo-based process identification support for Tegra30.
Signed-off-by: Danny Huang <dahuang@nvidia.com>
[swarren s/Tegra3/Tegra30/ in log print,
s/T30/Tegra30/ in commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/fuse.c')
| -rw-r--r-- | arch/arm/mach-tegra/fuse.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c index 9fd02c50ae29..8121742711fe 100644 --- a/arch/arm/mach-tegra/fuse.c +++ b/arch/arm/mach-tegra/fuse.c @@ -30,11 +30,13 @@ #define FUSE_SKU_INFO 0x110 #define TEGRA20_FUSE_SPARE_BIT 0x200 +#define TEGRA30_FUSE_SPARE_BIT 0x244 int tegra_sku_id; int tegra_cpu_process_id; int tegra_core_process_id; int tegra_chip_id; +int tegra_cpu_speedo_id; /* only exist in Tegra30 and later */ int tegra_soc_speedo_id; enum tegra_revision tegra_revision; @@ -120,13 +122,18 @@ void tegra_init_fuse(void) id = readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804); tegra_chip_id = (id >> 8) & 0xff; - tegra_fuse_spare_bit = TEGRA20_FUSE_SPARE_BIT; - switch (tegra_chip_id) { case TEGRA20: + tegra_fuse_spare_bit = TEGRA20_FUSE_SPARE_BIT; tegra_init_speedo_data = &tegra20_init_speedo_data; break; + case TEGRA30: + tegra_fuse_spare_bit = TEGRA30_FUSE_SPARE_BIT; + tegra_init_speedo_data = &tegra30_init_speedo_data; + break; default: + pr_warn("Tegra: unknown chip id %d\n", tegra_chip_id); + tegra_fuse_spare_bit = TEGRA20_FUSE_SPARE_BIT; tegra_init_speedo_data = &tegra_get_process_id; } |