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 int dev_read_s32(struct udevice *dev, const char *propname, s32 *outp) 25 { 26 return ofnode_read_u32(dev_ofnode(dev), propname, (u32 *)outp); 27 } 28 29 int dev_read_s32_default(struct udevice *dev, const char *propname, int def) 30 { 31 return ofnode_read_u32_default(dev_ofnode(dev), propname, def); 32 } 33 34 int dev_read_u32u(struct udevice *dev, const char *propname, uint *outp) 35 { 36 u32 val; 37 int ret; 38 39 ret = ofnode_read_u32(dev_ofnode(dev), propname, &val); 40 if (ret) 41 return ret; 42 *outp = val; 43 44 return 0; 45 } 46 47 const char *dev_read_string(struct udevice *dev, const char *propname) 48 { 49 return ofnode_read_string(dev_ofnode(dev), propname); 50 } 51 52 bool dev_read_bool(struct udevice *dev, const char *propname) 53 { 54 return ofnode_read_bool(dev_ofnode(dev), propname); 55 } 56 57 ofnode dev_read_subnode(struct udevice *dev, const char *subnode_name) 58 { 59 return ofnode_find_subnode(dev_ofnode(dev), subnode_name); 60 } 61 62 ofnode dev_read_first_subnode(struct udevice *dev) 63 { 64 return ofnode_first_subnode(dev_ofnode(dev)); 65 } 66 67 ofnode dev_read_next_subnode(ofnode node) 68 { 69 return ofnode_next_subnode(node); 70 } 71 72 int dev_read_size(struct udevice *dev, const char *propname) 73 { 74 return ofnode_read_size(dev_ofnode(dev), propname); 75 } 76 77 fdt_addr_t dev_read_addr_index(struct udevice *dev, int index) 78 { 79 if (ofnode_is_np(dev_ofnode(dev))) 80 return ofnode_get_addr_index(dev_ofnode(dev), index); 81 else 82 return devfdt_get_addr_index(dev, index); 83 } 84 85 void *dev_remap_addr_index(struct udevice *dev, int index) 86 { 87 fdt_addr_t addr = dev_read_addr_index(dev, index); 88 89 if (addr == FDT_ADDR_T_NONE) 90 return NULL; 91 92 return map_physmem(addr, 0, MAP_NOCACHE); 93 } 94 95 fdt_addr_t dev_read_addr_name(struct udevice *dev, const char *name) 96 { 97 int index = dev_read_stringlist_search(dev, "reg-names", name); 98 99 if (index < 0) 100 return FDT_ADDR_T_NONE; 101 else 102 return dev_read_addr_index(dev, index); 103 } 104 105 void *dev_remap_addr_name(struct udevice *dev, const char *name) 106 { 107 fdt_addr_t addr = dev_read_addr_name(dev, name); 108 109 if (addr == FDT_ADDR_T_NONE) 110 return NULL; 111 112 return map_physmem(addr, 0, MAP_NOCACHE); 113 } 114 115 fdt_addr_t dev_read_addr(struct udevice *dev) 116 { 117 return dev_read_addr_index(dev, 0); 118 } 119 120 void *dev_read_addr_ptr(struct udevice *dev) 121 { 122 fdt_addr_t addr = dev_read_addr(dev); 123 124 return (addr == FDT_ADDR_T_NONE) ? NULL : map_sysmem(addr, 0); 125 } 126 127 void *dev_remap_addr(struct udevice *dev) 128 { 129 return dev_remap_addr_index(dev, 0); 130 } 131 132 fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property, 133 fdt_size_t *sizep) 134 { 135 return ofnode_get_addr_size(dev_ofnode(dev), property, sizep); 136 } 137 138 const char *dev_read_name(struct udevice *dev) 139 { 140 return ofnode_get_name(dev_ofnode(dev)); 141 } 142 143 int dev_read_stringlist_search(struct udevice *dev, const char *property, 144 const char *string) 145 { 146 return ofnode_stringlist_search(dev_ofnode(dev), property, string); 147 } 148 149 int dev_read_string_index(struct udevice *dev, const char *propname, int index, 150 const char **outp) 151 { 152 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); 153 } 154 155 int dev_read_string_count(struct udevice *dev, const char *propname) 156 { 157 return ofnode_read_string_count(dev_ofnode(dev), propname); 158 } 159 160 int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, 161 const char *cells_name, int cell_count, 162 int index, struct ofnode_phandle_args *out_args) 163 { 164 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name, 165 cells_name, cell_count, index, 166 out_args); 167 } 168 169 int dev_count_phandle_with_args(struct udevice *dev, const char *list_name, 170 const char *cells_name) 171 { 172 return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name, 173 cells_name); 174 } 175 176 int dev_read_addr_cells(struct udevice *dev) 177 { 178 return ofnode_read_addr_cells(dev_ofnode(dev)); 179 } 180 181 int dev_read_size_cells(struct udevice *dev) 182 { 183 return ofnode_read_size_cells(dev_ofnode(dev)); 184 } 185 186 int dev_read_simple_addr_cells(struct udevice *dev) 187 { 188 return ofnode_read_simple_addr_cells(dev_ofnode(dev)); 189 } 190 191 int dev_read_simple_size_cells(struct udevice *dev) 192 { 193 return ofnode_read_simple_size_cells(dev_ofnode(dev)); 194 } 195 196 int dev_read_phandle(struct udevice *dev) 197 { 198 ofnode node = dev_ofnode(dev); 199 200 if (ofnode_is_np(node)) 201 return ofnode_to_np(node)->phandle; 202 else 203 return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node)); 204 } 205 206 const void *dev_read_prop(struct udevice *dev, const char *propname, int *lenp) 207 { 208 return ofnode_get_property(dev_ofnode(dev), propname, lenp); 209 } 210 211 int dev_read_alias_seq(struct udevice *dev, int *devnump) 212 { 213 ofnode node = dev_ofnode(dev); 214 const char *uc_name = dev->uclass->uc_drv->name; 215 int ret; 216 217 if (ofnode_is_np(node)) { 218 ret = of_alias_get_id(ofnode_to_np(node), uc_name); 219 if (ret >= 0) 220 *devnump = ret; 221 } else { 222 ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name, 223 ofnode_to_offset(node), devnump); 224 } 225 226 return ret; 227 } 228 229 int dev_read_u32_array(struct udevice *dev, const char *propname, 230 u32 *out_values, size_t sz) 231 { 232 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz); 233 } 234 235 const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname, 236 size_t sz) 237 { 238 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz); 239 } 240 241 int dev_read_enabled(struct udevice *dev) 242 { 243 ofnode node = dev_ofnode(dev); 244 245 if (ofnode_is_np(node)) 246 return of_device_is_available(ofnode_to_np(node)); 247 else 248 return fdtdec_get_is_enabled(gd->fdt_blob, 249 ofnode_to_offset(node)); 250 } 251 252 int dev_read_resource(struct udevice *dev, uint index, struct resource *res) 253 { 254 return ofnode_read_resource(dev_ofnode(dev), index, res); 255 } 256 257 int dev_read_resource_byname(struct udevice *dev, const char *name, 258 struct resource *res) 259 { 260 return ofnode_read_resource_byname(dev_ofnode(dev), name, res); 261 } 262 263 u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr) 264 { 265 return ofnode_translate_address(dev_ofnode(dev), in_addr); 266 } 267 268 int dev_read_alias_highest_id(const char *stem) 269 { 270 if (of_live_active()) 271 return of_alias_get_highest_id(stem); 272 273 return fdtdec_get_alias_highest_id(gd->fdt_blob, stem); 274 } 275