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 37 struct tegra_fuse { 38 struct device *dev; 39 void __iomem *base; 40 phys_addr_t phys; 41 struct clk *clk; 42 43 u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset); 44 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset); 45 const struct tegra_fuse_soc *soc; 46 47 /* APBDMA on Tegra20 */ 48 struct { 49 struct mutex lock; 50 struct completion wait; 51 struct dma_chan *chan; 52 struct dma_slave_config config; 53 dma_addr_t phys; 54 u32 *virt; 55 } apbdma; 56 57 struct nvmem_device *nvmem; 58 struct nvmem_cell_lookup *lookups; 59 }; 60 61 void tegra_init_revision(void); 62 void tegra_init_apbmisc(void); 63 64 bool __init tegra_fuse_read_spare(unsigned int spare); 65 u32 __init tegra_fuse_read_early(unsigned int offset); 66 67 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 68 void tegra20_init_speedo_data(struct tegra_sku_info *sku_info); 69 #endif 70 71 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 72 void tegra30_init_speedo_data(struct tegra_sku_info *sku_info); 73 #endif 74 75 #ifdef CONFIG_ARCH_TEGRA_114_SOC 76 void tegra114_init_speedo_data(struct tegra_sku_info *sku_info); 77 #endif 78 79 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) 80 void tegra124_init_speedo_data(struct tegra_sku_info *sku_info); 81 #endif 82 83 #ifdef CONFIG_ARCH_TEGRA_210_SOC 84 void tegra210_init_speedo_data(struct tegra_sku_info *sku_info); 85 #endif 86 87 #ifdef CONFIG_ARCH_TEGRA_2x_SOC 88 extern const struct tegra_fuse_soc tegra20_fuse_soc; 89 #endif 90 91 #ifdef CONFIG_ARCH_TEGRA_3x_SOC 92 extern const struct tegra_fuse_soc tegra30_fuse_soc; 93 #endif 94 95 #ifdef CONFIG_ARCH_TEGRA_114_SOC 96 extern const struct tegra_fuse_soc tegra114_fuse_soc; 97 #endif 98 99 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) 100 extern const struct tegra_fuse_soc tegra124_fuse_soc; 101 #endif 102 103 #ifdef CONFIG_ARCH_TEGRA_210_SOC 104 extern const struct tegra_fuse_soc tegra210_fuse_soc; 105 #endif 106 107 #ifdef CONFIG_ARCH_TEGRA_186_SOC 108 extern const struct tegra_fuse_soc tegra186_fuse_soc; 109 #endif 110 111 #endif 112