arch/arm/mach-tegra/fuse.h

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