LXR linux/arch/arm/mach-tegra/fuse.h

   1/*
   2 * Copyright (C) 2010 Google, Inc.
   3 * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
   4 *
   5 * Author:
   6 *      Colin Cross <ccross@android.com>
   7 *
   8 * This software is licensed under the terms of the GNU General Public
   9 * License version 2, as published by the Free Software Foundation, and
  10 * may be copied, distributed, and modified under those terms.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 */
  18
  19#ifndef __MACH_TEGRA_FUSE_H
  20#define __MACH_TEGRA_FUSE_H
  21
  22enum tegra_revision {
  23        TEGRA_REVISION_UNKNOWN = 0,
  24        TEGRA_REVISION_A01,
  25        TEGRA_REVISION_A02,
  26        TEGRA_REVISION_A03,
  27        TEGRA_REVISION_A03p,
  28        TEGRA_REVISION_A04,
  29        TEGRA_REVISION_MAX,
  30};
  31
  32#define SKU_ID_T20      8
  33#define SKU_ID_T25SE    20
  34#define SKU_ID_AP25     23
  35#define SKU_ID_T25      24
  36#define SKU_ID_AP25E    27
  37#define SKU_ID_T25E     28
  38
  39#define TEGRA20         0x20
  40#define TEGRA30         0x30
  41#define TEGRA114        0x35
  42
  43extern int tegra_sku_id;
  44extern int tegra_cpu_process_id;
  45extern int tegra_core_process_id;
  46extern int tegra_chip_id;
  47extern int tegra_cpu_speedo_id;         /* only exist in Tegra30 and later */
  48extern int tegra_soc_speedo_id;
  49extern enum tegra_revision tegra_revision;
  50
  51extern int tegra_bct_strapping;
  52
  53unsigned long long tegra_chip_uid(void);
  54void tegra_init_fuse(void);
  55bool tegra_spare_fuse(int bit);
  56u32 tegra_fuse_readl(unsigned long offset);
  57
  58#ifdef CONFIG_ARCH_TEGRA_2x_SOC
  59void tegra20_init_speedo_data(void);
  60#else
  61static inline void tegra20_init_speedo_data(void) {}
  62#endif
  63
  64#ifdef CONFIG_ARCH_TEGRA_3x_SOC
  65void tegra30_init_speedo_data(void);
  66#else
  67static inline void tegra30_init_speedo_data(void) {}
  68#endif
  69
  70#ifdef CONFIG_ARCH_TEGRA_114_SOC
  71void tegra114_init_speedo_data(void);
  72#else
  73static inline void tegra114_init_speedo_data(void) {}
  74#endif
  75
  76#endif
  77