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 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 45 struct 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 70 void tegra_init_revision(void); 71 void tegra_init_apbmisc(void); 72 void tegra_acpi_init_apbmisc(void); 73 74 u32 __init tegra_fuse_read_spare(unsigned int spare); 75 u32 __init tegra_fuse_read_early(unsigned int offset); 76 77 u8 tegra_get_major_rev(void); 78 u8 tegra_get_minor_rev(void); 79 80 extern const struct attribute_group tegra_soc_attr_group; 81 82 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 83 void tegra20_init_speedo_data(struct tegra_sku_info *sku_info); 84 #endif 85 86 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 87 void tegra30_init_speedo_data(struct tegra_sku_info *sku_info); 88 #endif 89 90 #ifdef CONFIG_ARCH_TEGRA_114_SOC 91 void 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) 95 void tegra124_init_speedo_data(struct tegra_sku_info *sku_info); 96 #endif 97 98 #ifdef CONFIG_ARCH_TEGRA_210_SOC 99 void tegra210_init_speedo_data(struct tegra_sku_info *sku_info); 100 #endif 101 102 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 103 extern const struct tegra_fuse_soc tegra20_fuse_soc; 104 #endif 105 106 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 107 extern const struct tegra_fuse_soc tegra30_fuse_soc; 108 #endif 109 110 #ifdef CONFIG_ARCH_TEGRA_114_SOC 111 extern 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) 115 extern const struct tegra_fuse_soc tegra124_fuse_soc; 116 #endif 117 118 #ifdef CONFIG_ARCH_TEGRA_210_SOC 119 extern const struct tegra_fuse_soc tegra210_fuse_soc; 120 #endif 121 122 #ifdef CONFIG_ARCH_TEGRA_186_SOC 123 extern 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) 129 extern const struct attribute_group tegra194_soc_attr_group; 130 #endif 131 132 #ifdef CONFIG_ARCH_TEGRA_194_SOC 133 extern const struct tegra_fuse_soc tegra194_fuse_soc; 134 #endif 135 136 #ifdef CONFIG_ARCH_TEGRA_234_SOC 137 extern const struct tegra_fuse_soc tegra234_fuse_soc; 138 #endif 139 140 #ifdef CONFIG_ARCH_TEGRA_241_SOC 141 extern const struct tegra_fuse_soc tegra241_fuse_soc; 142 #endif 143 144 #endif 145