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
  37 struct tegra_fuse {
  38         struct device *dev;
  39         void __iomem *base;
  40         phys_addr_t phys;
  41         struct clk *clk;
  42
  43         u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset);
  44         u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
  45         const struct tegra_fuse_soc *soc;
  46
  47         /* APBDMA on Tegra20 */
  48         struct {
  49                 struct mutex lock;
  50                 struct completion wait;
  51                 struct dma_chan *chan;
  52                 struct dma_slave_config config;
  53                 dma_addr_t phys;
  54                 u32 *virt;
  55         } apbdma;
  56
  57         struct nvmem_device *nvmem;
  58         struct nvmem_cell_lookup *lookups;
  59 };
  60
  61 void tegra_init_revision(void);
  62 void tegra_init_apbmisc(void);
  63
  64 bool __init tegra_fuse_read_spare(unsigned int spare);
  65 u32 __init tegra_fuse_read_early(unsigned int offset);
  66
  67 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
  68 void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
  69 #endif
  70
  71 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
  72 void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
  73 #endif
  74
  75 #ifdef CONFIG_ARCH_TEGRA_114_SOC
  76 void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);
  77 #endif
  78
  79 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
  80 void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
  81 #endif
  82
  83 #ifdef CONFIG_ARCH_TEGRA_210_SOC
  84 void tegra210_init_speedo_data(struct tegra_sku_info *sku_info);
  85 #endif
  86
  87 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
  88 extern const struct tegra_fuse_soc tegra20_fuse_soc;
  89 #endif
  90
  91 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
  92 extern const struct tegra_fuse_soc tegra30_fuse_soc;
  93 #endif
  94
  95 #ifdef CONFIG_ARCH_TEGRA_114_SOC
  96 extern const struct tegra_fuse_soc tegra114_fuse_soc;
  97 #endif
  98
  99 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
 100 extern const struct tegra_fuse_soc tegra124_fuse_soc;
 101 #endif
 102
 103 #ifdef CONFIG_ARCH_TEGRA_210_SOC
 104 extern const struct tegra_fuse_soc tegra210_fuse_soc;
 105 #endif
 106
 107 #ifdef CONFIG_ARCH_TEGRA_186_SOC
 108 extern const struct tegra_fuse_soc tegra186_fuse_soc;
 109 #endif
 110
 111 #ifdef CONFIG_ARCH_TEGRA_194_SOC
 112 extern const struct tegra_fuse_soc tegra194_fuse_soc;
 113 #endif
 114
 115 #endif