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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 bool clk_suspend_on;
39};
40
41struct tegra_fuse {
42 struct device *dev;
43 void __iomem *base;
44 phys_addr_t phys;
45 struct clk *clk;
46
47 u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset);
48 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
49 const struct tegra_fuse_soc *soc;
50
51 /* APBDMA on Tegra20 */
52 struct {
53 struct mutex lock;
54 struct completion wait;
55 struct dma_chan *chan;
56 struct dma_slave_config config;
57 dma_addr_t phys;
58 u32 *virt;
59 } apbdma;
60
61 struct nvmem_device *nvmem;
62 struct nvmem_cell_lookup *lookups;
63};
64
65void tegra_init_revision(void);
66void tegra_init_apbmisc(void);
67
68bool __init tegra_fuse_read_spare(unsigned int spare);
69u32 __init tegra_fuse_read_early(unsigned int offset);
70
71u8 tegra_get_major_rev(void);
72u8 tegra_get_minor_rev(void);
73
74extern const struct attribute_group tegra_soc_attr_group;
75
76#ifdef CONFIG_ARCH_TEGRA_2x_SOC
77void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
78#endif
79
80#ifdef CONFIG_ARCH_TEGRA_3x_SOC
81void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
82#endif
83
84#ifdef CONFIG_ARCH_TEGRA_114_SOC
85void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);
86#endif
87
88#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
89void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
90#endif
91
92#ifdef CONFIG_ARCH_TEGRA_210_SOC
93void tegra210_init_speedo_data(struct tegra_sku_info *sku_info);
94#endif
95
96#ifdef CONFIG_ARCH_TEGRA_2x_SOC
97extern const struct tegra_fuse_soc tegra20_fuse_soc;
98#endif
99
100#ifdef CONFIG_ARCH_TEGRA_3x_SOC
101extern const struct tegra_fuse_soc tegra30_fuse_soc;
102#endif
103
104#ifdef CONFIG_ARCH_TEGRA_114_SOC
105extern const struct tegra_fuse_soc tegra114_fuse_soc;
106#endif
107
108#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
109extern const struct tegra_fuse_soc tegra124_fuse_soc;
110#endif
111
112#ifdef CONFIG_ARCH_TEGRA_210_SOC
113extern const struct tegra_fuse_soc tegra210_fuse_soc;
114#endif
115
116#ifdef CONFIG_ARCH_TEGRA_186_SOC
117extern const struct tegra_fuse_soc tegra186_fuse_soc;
118#endif
119
120#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
121 IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
122extern const struct attribute_group tegra194_soc_attr_group;
123#endif
124
125#ifdef CONFIG_ARCH_TEGRA_194_SOC
126extern const struct tegra_fuse_soc tegra194_fuse_soc;
127#endif
128
129#ifdef CONFIG_ARCH_TEGRA_234_SOC
130extern const struct tegra_fuse_soc tegra234_fuse_soc;
131#endif
132
133#endif