Linux kernel mirror (for testing)
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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
16struct nvmem_cell_lookup;
17struct nvmem_device;
18struct tegra_fuse;
19
20struct tegra_fuse_info {
21 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
22 unsigned int size;
23 unsigned int spare;
24};
25
26struct 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
39struct 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
63void tegra_init_revision(void);
64void tegra_init_apbmisc(void);
65
66bool __init tegra_fuse_read_spare(unsigned int spare);
67u32 __init tegra_fuse_read_early(unsigned int offset);
68
69u8 tegra_get_major_rev(void);
70u8 tegra_get_minor_rev(void);
71
72extern const struct attribute_group tegra_soc_attr_group;
73
74#ifdef CONFIG_ARCH_TEGRA_2x_SOC
75void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
76#endif
77
78#ifdef CONFIG_ARCH_TEGRA_3x_SOC
79void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
80#endif
81
82#ifdef CONFIG_ARCH_TEGRA_114_SOC
83void 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)
87void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
88#endif
89
90#ifdef CONFIG_ARCH_TEGRA_210_SOC
91void tegra210_init_speedo_data(struct tegra_sku_info *sku_info);
92#endif
93
94#ifdef CONFIG_ARCH_TEGRA_2x_SOC
95extern const struct tegra_fuse_soc tegra20_fuse_soc;
96#endif
97
98#ifdef CONFIG_ARCH_TEGRA_3x_SOC
99extern const struct tegra_fuse_soc tegra30_fuse_soc;
100#endif
101
102#ifdef CONFIG_ARCH_TEGRA_114_SOC
103extern 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)
107extern const struct tegra_fuse_soc tegra124_fuse_soc;
108#endif
109
110#ifdef CONFIG_ARCH_TEGRA_210_SOC
111extern const struct tegra_fuse_soc tegra210_fuse_soc;
112#endif
113
114#ifdef CONFIG_ARCH_TEGRA_186_SOC
115extern 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)
120extern const struct attribute_group tegra194_soc_attr_group;
121#endif
122
123#ifdef CONFIG_ARCH_TEGRA_194_SOC
124extern const struct tegra_fuse_soc tegra194_fuse_soc;
125#endif
126
127#ifdef CONFIG_ARCH_TEGRA_234_SOC
128extern const struct tegra_fuse_soc tegra234_fuse_soc;
129#endif
130
131#endif