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 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 struct nvmem_device *nvmem; 62 struct nvmem_cell_lookup *lookups; 63 }; 64 65 void tegra_init_revision(void); 66 void tegra_init_apbmisc(void); 67 68 bool __init tegra_fuse_read_spare(unsigned int spare); 69 u32 __init tegra_fuse_read_early(unsigned int offset); 70 71 u8 tegra_get_major_rev(void); 72 u8 tegra_get_minor_rev(void); 73 74 extern const struct attribute_group tegra_soc_attr_group; 75 76 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 77 void tegra20_init_speedo_data(struct tegra_sku_info *sku_info); 78 #endif 79 80 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 81 void tegra30_init_speedo_data(struct tegra_sku_info *sku_info); 82 #endif 83 84 #ifdef CONFIG_ARCH_TEGRA_114_SOC 85 void tegra114_init_speedo_data(struct tegra_sku_info *sku_info); 86 #endif 87 88 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) 89 void tegra124_init_speedo_data(struct tegra_sku_info *sku_info); 90 #endif 91 92 #ifdef CONFIG_ARCH_TEGRA_210_SOC 93 void tegra210_init_speedo_data(struct tegra_sku_info *sku_info); 94 #endif 95 96 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 97 extern const struct tegra_fuse_soc tegra20_fuse_soc; 98 #endif 99 100 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 101 extern const struct tegra_fuse_soc tegra30_fuse_soc; 102 #endif 103 104 #ifdef CONFIG_ARCH_TEGRA_114_SOC 105 extern const struct tegra_fuse_soc tegra114_fuse_soc; 106 #endif 107 108 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) 109 extern const struct tegra_fuse_soc tegra124_fuse_soc; 110 #endif 111 112 #ifdef CONFIG_ARCH_TEGRA_210_SOC 113 extern const struct tegra_fuse_soc tegra210_fuse_soc; 114 #endif 115 116 #ifdef CONFIG_ARCH_TEGRA_186_SOC 117 extern const struct tegra_fuse_soc tegra186_fuse_soc; 118 #endif 119 120 #if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \ 121 IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) 122 extern const struct attribute_group tegra194_soc_attr_group; 123 #endif 124 125 #ifdef CONFIG_ARCH_TEGRA_194_SOC 126 extern const struct tegra_fuse_soc tegra194_fuse_soc; 127 #endif 128 129 #ifdef CONFIG_ARCH_TEGRA_234_SOC 130 extern const struct tegra_fuse_soc tegra234_fuse_soc; 131 #endif 132 133 #endif 134