1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2017 Google, Inc 4 * Written by Simon Glass <sjg@chromium.org> 5 */ 6 7 #include <asm/types.h> 8 #include <asm/io.h> 9 #include <common.h> 10 #include <dm.h> 11 #include <mapmem.h> 12 #include <dm/of_access.h> 13 14 int dev_read_u32(struct udevice *dev, const char *propname, u32 *outp) 15 { 16 return ofnode_read_u32(dev_ofnode(dev), propname, outp); 17 } 18 19 int dev_read_u32_default(struct udevice *dev, const char *propname, int def) 20 { 21 return ofnode_read_u32_default(dev_ofnode(dev), propname, def); 22 } 23 24 const char *dev_read_string(struct udevice *dev, const char *propname) 25 { 26 return ofnode_read_string(dev_ofnode(dev), propname); 27 } 28 29 bool dev_read_bool(struct udevice *dev, const char *propname) 30 { 31 return ofnode_read_bool(dev_ofnode(dev), propname); 32 } 33 34 ofnode dev_read_subnode(struct udevice *dev, const char *subnode_name) 35 { 36 return ofnode_find_subnode(dev_ofnode(dev), subnode_name); 37 } 38 39 ofnode dev_read_first_subnode(struct udevice *dev) 40 { 41 return ofnode_first_subnode(dev_ofnode(dev)); 42 } 43 44 ofnode dev_read_next_subnode(ofnode node) 45 { 46 return ofnode_next_subnode(node); 47 } 48 49 int dev_read_size(struct udevice *dev, const char *propname) 50 { 51 return ofnode_read_size(dev_ofnode(dev), propname); 52 } 53 54 fdt_addr_t dev_read_addr_index(struct udevice *dev, int index) 55 { 56 if (ofnode_is_np(dev_ofnode(dev))) 57 return ofnode_get_addr_index(dev_ofnode(dev), index); 58 else 59 return devfdt_get_addr_index(dev, index); 60 } 61 62 void *dev_remap_addr_index(struct udevice *dev, int index) 63 { 64 fdt_addr_t addr = dev_read_addr_index(dev, index); 65 66 if (addr == FDT_ADDR_T_NONE) 67 return NULL; 68 69 return map_physmem(addr, 0, MAP_NOCACHE); 70 } 71 72 fdt_addr_t dev_read_addr(struct udevice *dev) 73 { 74 return dev_read_addr_index(dev, 0); 75 } 76 77 void *dev_read_addr_ptr(struct udevice *dev) 78 { 79 fdt_addr_t addr = dev_read_addr(dev); 80 81 return (addr == FDT_ADDR_T_NONE) ? NULL : map_sysmem(addr, 0); 82 } 83 84 void *dev_remap_addr(struct udevice *dev) 85 { 86 return dev_remap_addr_index(dev, 0); 87 } 88 89 fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property, 90 fdt_size_t *sizep) 91 { 92 return ofnode_get_addr_size(dev_ofnode(dev), property, sizep); 93 } 94 95 const char *dev_read_name(struct udevice *dev) 96 { 97 return ofnode_get_name(dev_ofnode(dev)); 98 } 99 100 int dev_read_stringlist_search(struct udevice *dev, const char *property, 101 const char *string) 102 { 103 return ofnode_stringlist_search(dev_ofnode(dev), property, string); 104 } 105 106 int dev_read_string_index(struct udevice *dev, const char *propname, int index, 107 const char **outp) 108 { 109 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); 110 } 111 112 int dev_read_string_count(struct udevice *dev, const char *propname) 113 { 114 return ofnode_read_string_count(dev_ofnode(dev), propname); 115 } 116 117 int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, 118 const char *cells_name, int cell_count, 119 int index, struct ofnode_phandle_args *out_args) 120 { 121 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name, 122 cells_name, cell_count, index, 123 out_args); 124 } 125 126 int dev_count_phandle_with_args(struct udevice *dev, const char *list_name, 127 const char *cells_name) 128 { 129 return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name, 130 cells_name); 131 } 132 133 int dev_read_addr_cells(struct udevice *dev) 134 { 135 return ofnode_read_addr_cells(dev_ofnode(dev)); 136 } 137 138 int dev_read_size_cells(struct udevice *dev) 139 { 140 return ofnode_read_size_cells(dev_ofnode(dev)); 141 } 142 143 int dev_read_simple_addr_cells(struct udevice *dev) 144 { 145 return ofnode_read_simple_addr_cells(dev_ofnode(dev)); 146 } 147 148 int dev_read_simple_size_cells(struct udevice *dev) 149 { 150 return ofnode_read_simple_size_cells(dev_ofnode(dev)); 151 } 152 153 int dev_read_phandle(struct udevice *dev) 154 { 155 ofnode node = dev_ofnode(dev); 156 157 if (ofnode_is_np(node)) 158 return ofnode_to_np(node)->phandle; 159 else 160 return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node)); 161 } 162 163 const void *dev_read_prop(struct udevice *dev, const char *propname, int *lenp) 164 { 165 return ofnode_get_property(dev_ofnode(dev), propname, lenp); 166 } 167 168 int dev_read_alias_seq(struct udevice *dev, int *devnump) 169 { 170 ofnode node = dev_ofnode(dev); 171 const char *uc_name = dev->uclass->uc_drv->name; 172 int ret; 173 174 if (ofnode_is_np(node)) { 175 ret = of_alias_get_id(ofnode_to_np(node), uc_name); 176 if (ret >= 0) 177 *devnump = ret; 178 } else { 179 ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name, 180 ofnode_to_offset(node), devnump); 181 } 182 183 return ret; 184 } 185 186 int dev_read_u32_array(struct udevice *dev, const char *propname, 187 u32 *out_values, size_t sz) 188 { 189 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz); 190 } 191 192 const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname, 193 size_t sz) 194 { 195 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz); 196 } 197 198 int dev_read_enabled(struct udevice *dev) 199 { 200 ofnode node = dev_ofnode(dev); 201 202 if (ofnode_is_np(node)) 203 return of_device_is_available(ofnode_to_np(node)); 204 else 205 return fdtdec_get_is_enabled(gd->fdt_blob, 206 ofnode_to_offset(node)); 207 } 208 209 int dev_read_resource(struct udevice *dev, uint index, struct resource *res) 210 { 211 return ofnode_read_resource(dev_ofnode(dev), index, res); 212 } 213 214 int dev_read_resource_byname(struct udevice *dev, const char *name, 215 struct resource *res) 216 { 217 return ofnode_read_resource_byname(dev_ofnode(dev), name, res); 218 } 219 220 u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr) 221 { 222 return ofnode_translate_address(dev_ofnode(dev), in_addr); 223 } 224