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soc/tegra: Add efuse driver for Tegra

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Implement fuse driver for Tegra20, Tegra30, Tegra114 and Tegra124. This
replaces functionality previously provided in arch/arm/mach-tegra, which
is removed in this patch.

While at it, move the only user of the global tegra_revision variable
over to tegra_sku_info.revision and export tegra_fuse_readl() to allow
drivers to read calibration fuses.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Peter De Schrijver
2014-06-12 18:36:37 +03:00
committed by Thierry Reding
parent 35874f3617
commit 783c8f4c84
20 changed files with 1047 additions and 461 deletions
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20
include/soc/tegra/fuse.h
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@@ -22,6 +22,9 @@
#define TEGRA114 0x35
#define TEGRA124 0x40
#define TEGRA_FUSE_SKU_CALIB_0 0xf0
#define TEGRA30_FUSE_SATA_CALIB 0x124
#ifndef __ASSEMBLY__
u32 tegra_read_chipid(void);
@@ -37,11 +40,26 @@ enum tegra_revision {
TEGRA_REVISION_MAX,
};
struct tegra_sku_info {
int sku_id;
int cpu_process_id;
int cpu_speedo_id;
int cpu_speedo_value;
int cpu_iddq_value;
int core_process_id;
int soc_speedo_id;
int gpu_speedo_id;
int gpu_process_id;
int gpu_speedo_value;
enum tegra_revision revision;
};
u32 tegra_read_straps(void);
u32 tegra_read_chipid(void);
void tegra_init_fuse(void);
int tegra_fuse_readl(unsigned long offset, u32 *value);
extern enum tegra_revision tegra_revision;
extern struct tegra_sku_info tegra_sku_info;
#if defined(CONFIG_TEGRA20_APB_DMA)
int tegra_apb_readl_using_dma(unsigned long offset, u32 *value);