drivers/soc/tegra/fuse/fuse.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2010 Google, Inc.
   4  * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
   5  *
   6  * Author:
   7  *      Colin Cross <ccross@android.com>
   8  */
   9
  10 #ifndef __DRIVERS_MISC_TEGRA_FUSE_H
  11 #define __DRIVERS_MISC_TEGRA_FUSE_H
  12
  13 #include <linux/dmaengine.h>
  14 #include <linux/types.h>
  15
  16 struct nvmem_cell_lookup;
  17 struct nvmem_device;
  18 struct tegra_fuse;
  19
  20 struct tegra_fuse_info {
  21         u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
  22         unsigned int size;
  23         unsigned int spare;
  24 };
  25
  26 struct tegra_fuse_soc {
  27         void (*init)(struct tegra_fuse *fuse);
  28         void (*speedo_init)(struct tegra_sku_info *info);
  29         int (*probe)(struct tegra_fuse *fuse);
  30
  31         const struct tegra_fuse_info *info;
  32
  33         const struct nvmem_cell_lookup *lookups;
  34         unsigned int num_lookups;
  35
  36         const struct attribute_group *soc_attr_group;
  37 };
  38
  39 struct tegra_fuse {
  40         struct device *dev;
  41         void __iomem *base;
  42         phys_addr_t phys;
  43         struct clk *clk;
  44
  45         u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset);
  46         u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
  47         const struct tegra_fuse_soc *soc;
  48
  49         /* APBDMA on Tegra20 */
  50         struct {
  51                 struct mutex lock;
  52                 struct completion wait;
  53                 struct dma_chan *chan;
  54                 struct dma_slave_config config;
  55                 dma_addr_t phys;
  56                 u32 *virt;
  57         } apbdma;
  58
  59         struct nvmem_device *nvmem;
  60         struct nvmem_cell_lookup *lookups;
  61 };
  62
  63 void tegra_init_revision(void);
  64 void tegra_init_apbmisc(void);
  65
  66 bool __init tegra_fuse_read_spare(unsigned int spare);
  67 u32 __init tegra_fuse_read_early(unsigned int offset);
  68
  69 u8 tegra_get_major_rev(void);
  70 u8 tegra_get_minor_rev(void);
  71
  72 extern const struct attribute_group tegra_soc_attr_group;
  73
  74 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
  75 void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
  76 #endif
  77
  78 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
  79 void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
  80 #endif
  81
  82 #ifdef CONFIG_ARCH_TEGRA_114_SOC
  83 void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);
  84 #endif
  85
  86 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
  87 void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
  88 #endif
  89
  90 #ifdef CONFIG_ARCH_TEGRA_210_SOC
  91 void tegra210_init_speedo_data(struct tegra_sku_info *sku_info);
  92 #endif
  93
  94 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
  95 extern const struct tegra_fuse_soc tegra20_fuse_soc;
  96 #endif
  97
  98 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
  99 extern const struct tegra_fuse_soc tegra30_fuse_soc;
 100 #endif
 101
 102 #ifdef CONFIG_ARCH_TEGRA_114_SOC
 103 extern const struct tegra_fuse_soc tegra114_fuse_soc;
 104 #endif
 105
 106 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
 107 extern const struct tegra_fuse_soc tegra124_fuse_soc;
 108 #endif
 109
 110 #ifdef CONFIG_ARCH_TEGRA_210_SOC
 111 extern const struct tegra_fuse_soc tegra210_fuse_soc;
 112 #endif
 113
 114 #ifdef CONFIG_ARCH_TEGRA_186_SOC
 115 extern const struct tegra_fuse_soc tegra186_fuse_soc;
 116 #endif
 117
 118 #if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
 119     IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
 120 extern const struct attribute_group tegra194_soc_attr_group;
 121 #endif
 122
 123 #ifdef CONFIG_ARCH_TEGRA_194_SOC
 124 extern const struct tegra_fuse_soc tegra194_fuse_soc;
 125 #endif
 126
 127 #ifdef CONFIG_ARCH_TEGRA_234_SOC
 128 extern const struct tegra_fuse_soc tegra234_fuse_soc;
 129 #endif
 130
 131 #endif