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 16 struct nvmem_cell_lookup; 17 struct nvmem_device; 18 struct tegra_fuse; 19 20 struct tegra_fuse_info { 21 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset); 22 unsigned int size; 23 unsigned int spare; 24 }; 25 26 struct 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 41 struct tegra_fuse { 42 struct device *dev; 43 void __iomem *base; 44 phys_addr_t phys; 45 struct clk *clk; 46 struct reset_control *rst; 47 48 u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset); 49 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset); 50 const struct tegra_fuse_soc *soc; 51 52 /* APBDMA on Tegra20 */ 53 struct { 54 struct mutex lock; 55 struct completion wait; 56 struct dma_chan *chan; 57 struct dma_slave_config config; 58 dma_addr_t phys; 59 u32 *virt; 60 } apbdma; 61 62 struct nvmem_device *nvmem; 63 struct nvmem_cell_lookup *lookups; 64 }; 65 66 void tegra_init_revision(void); 67 void tegra_init_apbmisc(void); 68 69 u32 __init tegra_fuse_read_spare(unsigned int spare); 70 u32 __init tegra_fuse_read_early(unsigned int offset); 71 72 u8 tegra_get_major_rev(void); 73 u8 tegra_get_minor_rev(void); 74 75 extern const struct attribute_group tegra_soc_attr_group; 76 77 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 78 void tegra20_init_speedo_data(struct tegra_sku_info *sku_info); 79 #endif 80 81 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 82 void tegra30_init_speedo_data(struct tegra_sku_info *sku_info); 83 #endif 84 85 #ifdef CONFIG_ARCH_TEGRA_114_SOC 86 void tegra114_init_speedo_data(struct tegra_sku_info *sku_info); 87 #endif 88 89 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) 90 void tegra124_init_speedo_data(struct tegra_sku_info *sku_info); 91 #endif 92 93 #ifdef CONFIG_ARCH_TEGRA_210_SOC 94 void tegra210_init_speedo_data(struct tegra_sku_info *sku_info); 95 #endif 96 97 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 98 extern const struct tegra_fuse_soc tegra20_fuse_soc; 99 #endif 100 101 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 102 extern const struct tegra_fuse_soc tegra30_fuse_soc; 103 #endif 104 105 #ifdef CONFIG_ARCH_TEGRA_114_SOC 106 extern const struct tegra_fuse_soc tegra114_fuse_soc; 107 #endif 108 109 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) 110 extern const struct tegra_fuse_soc tegra124_fuse_soc; 111 #endif 112 113 #ifdef CONFIG_ARCH_TEGRA_210_SOC 114 extern const struct tegra_fuse_soc tegra210_fuse_soc; 115 #endif 116 117 #ifdef CONFIG_ARCH_TEGRA_186_SOC 118 extern const struct tegra_fuse_soc tegra186_fuse_soc; 119 #endif 120 121 #if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \ 122 IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) 123 extern const struct attribute_group tegra194_soc_attr_group; 124 #endif 125 126 #ifdef CONFIG_ARCH_TEGRA_194_SOC 127 extern const struct tegra_fuse_soc tegra194_fuse_soc; 128 #endif 129 130 #ifdef CONFIG_ARCH_TEGRA_234_SOC 131 extern const struct tegra_fuse_soc tegra234_fuse_soc; 132 #endif 133 134 #endif 135