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 const struct nvmem_cell_info *cells;
36 unsigned int num_cells;
37 const struct nvmem_keepout *keepouts;
38 unsigned int num_keepouts;
39
40 const struct attribute_group *soc_attr_group;
41
42 bool clk_suspend_on;
43};
44
45struct tegra_fuse {
46 struct device *dev;
47 void __iomem *base;
48 phys_addr_t phys;
49 struct clk *clk;
50 struct reset_control *rst;
51
52 u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset);
53 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
54 const struct tegra_fuse_soc *soc;
55
56 /* APBDMA on Tegra20 */
57 struct {
58 struct mutex lock;
59 struct completion wait;
60 struct dma_chan *chan;
61 struct dma_slave_config config;
62 dma_addr_t phys;
63 u32 *virt;
64 } apbdma;
65
66 struct nvmem_device *nvmem;
67 struct nvmem_cell_lookup *lookups;
68};
69
70void tegra_init_revision(void);
71void tegra_init_apbmisc(void);
72void tegra_acpi_init_apbmisc(void);
73
74u32 __init tegra_fuse_read_spare(unsigned int spare);
75u32 __init tegra_fuse_read_early(unsigned int offset);
76
77u8 tegra_get_major_rev(void);
78u8 tegra_get_minor_rev(void);
79
80extern const struct attribute_group tegra_soc_attr_group;
81
82#ifdef CONFIG_ARCH_TEGRA_2x_SOC
83void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
84#endif
85
86#ifdef CONFIG_ARCH_TEGRA_3x_SOC
87void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
88#endif
89
90#ifdef CONFIG_ARCH_TEGRA_114_SOC
91void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);
92#endif
93
94#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
95void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
96#endif
97
98#ifdef CONFIG_ARCH_TEGRA_210_SOC
99void tegra210_init_speedo_data(struct tegra_sku_info *sku_info);
100#endif
101
102#ifdef CONFIG_ARCH_TEGRA_2x_SOC
103extern const struct tegra_fuse_soc tegra20_fuse_soc;
104#endif
105
106#ifdef CONFIG_ARCH_TEGRA_3x_SOC
107extern const struct tegra_fuse_soc tegra30_fuse_soc;
108#endif
109
110#ifdef CONFIG_ARCH_TEGRA_114_SOC
111extern const struct tegra_fuse_soc tegra114_fuse_soc;
112#endif
113
114#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
115extern const struct tegra_fuse_soc tegra124_fuse_soc;
116#endif
117
118#ifdef CONFIG_ARCH_TEGRA_210_SOC
119extern const struct tegra_fuse_soc tegra210_fuse_soc;
120#endif
121
122#ifdef CONFIG_ARCH_TEGRA_186_SOC
123extern const struct tegra_fuse_soc tegra186_fuse_soc;
124#endif
125
126#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
127 IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) || \
128 IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC)
129extern const struct attribute_group tegra194_soc_attr_group;
130#endif
131
132#ifdef CONFIG_ARCH_TEGRA_194_SOC
133extern const struct tegra_fuse_soc tegra194_fuse_soc;
134#endif
135
136#ifdef CONFIG_ARCH_TEGRA_234_SOC
137extern const struct tegra_fuse_soc tegra234_fuse_soc;
138#endif
139
140#ifdef CONFIG_ARCH_TEGRA_241_SOC
141extern const struct tegra_fuse_soc tegra241_fuse_soc;
142#endif
143
144#endif