Linux kernel mirror (for testing)
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linux
1/*
2 * Copyright (C) 2010 Google, Inc.
3 * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
4 *
5 * Author:
6 * Colin Cross <ccross@android.com>
7 *
8 * This software is licensed under the terms of the GNU General Public
9 * License version 2, as published by the Free Software Foundation, and
10 * may be copied, distributed, and modified under those terms.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19#ifndef __DRIVERS_MISC_TEGRA_FUSE_H
20#define __DRIVERS_MISC_TEGRA_FUSE_H
21
22#include <linux/dmaengine.h>
23#include <linux/types.h>
24
25struct tegra_fuse;
26
27struct tegra_fuse_info {
28 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
29 unsigned int size;
30 unsigned int spare;
31};
32
33struct tegra_fuse_soc {
34 void (*init)(struct tegra_fuse *fuse);
35 void (*speedo_init)(struct tegra_sku_info *info);
36 int (*probe)(struct tegra_fuse *fuse);
37
38 const struct tegra_fuse_info *info;
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
62void tegra_init_revision(void);
63void tegra_init_apbmisc(void);
64
65bool __init tegra_fuse_read_spare(unsigned int spare);
66u32 __init tegra_fuse_read_early(unsigned int offset);
67
68#ifdef CONFIG_ARCH_TEGRA_2x_SOC
69void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
70#endif
71
72#ifdef CONFIG_ARCH_TEGRA_3x_SOC
73void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
74#endif
75
76#ifdef CONFIG_ARCH_TEGRA_114_SOC
77void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);
78#endif
79
80#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
81void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
82#endif
83
84#ifdef CONFIG_ARCH_TEGRA_210_SOC
85void tegra210_init_speedo_data(struct tegra_sku_info *sku_info);
86#endif
87
88#ifdef CONFIG_ARCH_TEGRA_2x_SOC
89extern const struct tegra_fuse_soc tegra20_fuse_soc;
90#endif
91
92#ifdef CONFIG_ARCH_TEGRA_3x_SOC
93extern const struct tegra_fuse_soc tegra30_fuse_soc;
94#endif
95
96#ifdef CONFIG_ARCH_TEGRA_114_SOC
97extern const struct tegra_fuse_soc tegra114_fuse_soc;
98#endif
99
100#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
101extern const struct tegra_fuse_soc tegra124_fuse_soc;
102#endif
103
104#ifdef CONFIG_ARCH_TEGRA_210_SOC
105extern const struct tegra_fuse_soc tegra210_fuse_soc;
106#endif
107
108#endif