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
  22 enum 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
  43 extern int tegra_sku_id;
  44 extern int tegra_cpu_process_id;
  45 extern int tegra_core_process_id;
  46 extern int tegra_chip_id;
  47 extern int tegra_cpu_speedo_id;         /* only exist in Tegra30 and later */
  48 extern int tegra_soc_speedo_id;
  49 extern enum tegra_revision tegra_revision;
  50
  51 extern int tegra_bct_strapping;
  52
  53 unsigned long long tegra_chip_uid(void);
  54 void tegra_init_fuse(void);
  55 bool tegra_spare_fuse(int bit);
  56 u32 tegra_fuse_readl(unsigned long offset);
  57
  58 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
  59 void tegra20_init_speedo_data(void);
  60 #else
  61 static inline void tegra20_init_speedo_data(void) {}
  62 #endif
  63
  64 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
  65 void tegra30_init_speedo_data(void);
  66 #else
  67 static inline void tegra30_init_speedo_data(void) {}
  68 #endif
  69
  70 #ifdef CONFIG_ARCH_TEGRA_114_SOC
  71 void tegra114_init_speedo_data(void);
  72 #else
  73 static inline void tegra114_init_speedo_data(void) {}
  74 #endif
  75
  76 #endif