Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
4 */
5
6#ifndef __SOC_TEGRA_FUSE_H__
7#define __SOC_TEGRA_FUSE_H__
8
9#include <linux/types.h>
10
11#define TEGRA20 0x20
12#define TEGRA30 0x30
13#define TEGRA114 0x35
14#define TEGRA124 0x40
15#define TEGRA132 0x13
16#define TEGRA210 0x21
17#define TEGRA186 0x18
18#define TEGRA194 0x19
19#define TEGRA234 0x23
20
21#define TEGRA_FUSE_SKU_CALIB_0 0xf0
22#define TEGRA30_FUSE_SATA_CALIB 0x124
23#define TEGRA_FUSE_USB_CALIB_EXT_0 0x250
24
25#ifndef __ASSEMBLY__
26
27enum tegra_revision {
28 TEGRA_REVISION_UNKNOWN = 0,
29 TEGRA_REVISION_A01,
30 TEGRA_REVISION_A02,
31 TEGRA_REVISION_A03,
32 TEGRA_REVISION_A03p,
33 TEGRA_REVISION_A04,
34 TEGRA_REVISION_MAX,
35};
36
37struct tegra_sku_info {
38 int sku_id;
39 int cpu_process_id;
40 int cpu_speedo_id;
41 int cpu_speedo_value;
42 int cpu_iddq_value;
43 int soc_process_id;
44 int soc_speedo_id;
45 int soc_speedo_value;
46 int gpu_process_id;
47 int gpu_speedo_id;
48 int gpu_speedo_value;
49 enum tegra_revision revision;
50};
51
52#ifdef CONFIG_ARCH_TEGRA
53extern struct tegra_sku_info tegra_sku_info;
54u32 tegra_read_straps(void);
55u32 tegra_read_ram_code(void);
56int tegra_fuse_readl(unsigned long offset, u32 *value);
57u32 tegra_read_chipid(void);
58u8 tegra_get_chip_id(void);
59u8 tegra_get_platform(void);
60bool tegra_is_silicon(void);
61#else
62static struct tegra_sku_info tegra_sku_info __maybe_unused;
63
64static inline u32 tegra_read_straps(void)
65{
66 return 0;
67}
68
69static inline u32 tegra_read_ram_code(void)
70{
71 return 0;
72}
73
74static inline int tegra_fuse_readl(unsigned long offset, u32 *value)
75{
76 return -ENODEV;
77}
78
79static inline u32 tegra_read_chipid(void)
80{
81 return 0;
82}
83
84static inline u8 tegra_get_chip_id(void)
85{
86 return 0;
87}
88
89static inline u8 tegra_get_platform(void)
90{
91 return 0;
92}
93
94static inline bool tegra_is_silicon(void)
95{
96 return false;
97}
98#endif
99
100struct device *tegra_soc_device_register(void);
101
102#endif /* __ASSEMBLY__ */
103
104#endif /* __SOC_TEGRA_FUSE_H__ */