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