1 /* 2 * Copyright (c) 2017 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <dm.h> 10 #include <mapmem.h> 11 #include <asm/io.h> 12 #include <dm/of_access.h> 13 14 int dev_read_u32_default(struct udevice *dev, const char *propname, int def) 15 { 16 return ofnode_read_u32_default(dev_ofnode(dev), propname, def); 17 } 18 19 int dev_read_s32_default(struct udevice *dev, const char *propname, int def) 20 { 21 return ofnode_read_s32_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 fdt_addr_t dev_read_addr(struct udevice *dev) 63 { 64 return dev_read_addr_index(dev, 0); 65 } 66 67 void *dev_remap_addr_index(struct udevice *dev, int index) 68 { 69 fdt_addr_t addr = dev_read_addr_index(dev, index); 70 71 if (addr == FDT_ADDR_T_NONE) 72 return NULL; 73 74 return map_physmem(addr, 0, MAP_NOCACHE); 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 fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property, 85 fdt_size_t *sizep) 86 { 87 return ofnode_get_addr_size(dev_ofnode(dev), property, sizep); 88 } 89 90 const char *dev_read_name(struct udevice *dev) 91 { 92 if (!dev_of_valid(dev)) 93 return NULL; 94 95 return ofnode_get_name(dev_ofnode(dev)); 96 } 97 98 int dev_read_stringlist_search(struct udevice *dev, const char *property, 99 const char *string) 100 { 101 return ofnode_stringlist_search(dev_ofnode(dev), property, string); 102 } 103 104 int dev_read_string_index(struct udevice *dev, const char *propname, int index, 105 const char **outp) 106 { 107 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); 108 } 109 110 int dev_read_string_count(struct udevice *dev, const char *propname) 111 { 112 return ofnode_read_string_count(dev_ofnode(dev), propname); 113 } 114 115 int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, 116 const char *cells_name, int cell_count, 117 int index, 118 struct ofnode_phandle_args *out_args) 119 { 120 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name, 121 cells_name, cell_count, index, 122 out_args); 123 } 124 125 int dev_count_phandle_with_args(struct udevice *dev, 126 const char *list_name, const char *cells_name) 127 { 128 return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name, 129 cells_name); 130 } 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_first_prop(struct udevice *dev, struct ofprop *prop) 169 { 170 return ofnode_get_first_property(dev_ofnode(dev), prop); 171 } 172 173 int dev_read_next_prop(struct ofprop *prop) 174 { 175 return ofnode_get_next_property(prop); 176 } 177 178 const void *dev_read_prop_by_prop(struct ofprop *prop, 179 const char **propname, int *lenp) 180 { 181 return ofnode_get_property_by_prop(prop, propname, lenp); 182 } 183 184 int dev_read_alias_seq(struct udevice *dev, int *devnump) 185 { 186 ofnode node = dev_ofnode(dev); 187 const char *uc_name = dev->uclass->uc_drv->name; 188 int ret; 189 190 if (ofnode_is_np(node)) { 191 ret = of_alias_get_id(ofnode_to_np(node), uc_name); 192 if (ret >= 0) 193 *devnump = ret; 194 } else { 195 ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name, 196 ofnode_to_offset(node), devnump); 197 } 198 199 return ret; 200 } 201 202 int dev_read_u32_array(struct udevice *dev, const char *propname, 203 u32 *out_values, size_t sz) 204 { 205 if (!dev_of_valid(dev)) 206 return -EINVAL; 207 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz); 208 } 209 210 int dev_write_u32_array(struct udevice *dev, const char *propname, 211 u32 *values, size_t sz) 212 { 213 if (!dev_of_valid(dev)) 214 return -EINVAL; 215 return ofnode_write_u32_array(dev_ofnode(dev), propname, values, sz); 216 } 217 218 const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname, 219 size_t sz) 220 { 221 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz); 222 } 223 224 int dev_read_enabled(struct udevice *dev) 225 { 226 ofnode node = dev_ofnode(dev); 227 228 if (ofnode_is_np(node)) 229 return of_device_is_available(ofnode_to_np(node)); 230 else 231 return fdtdec_get_is_enabled(gd->fdt_blob, 232 ofnode_to_offset(node)); 233 } 234 235 int dev_read_resource(struct udevice *dev, uint index, struct resource *res) 236 { 237 return ofnode_read_resource(dev_ofnode(dev), index, res); 238 } 239 240 int dev_read_resource_byname(struct udevice *dev, const char *name, 241 struct resource *res) 242 { 243 return ofnode_read_resource_byname(dev_ofnode(dev), name, res); 244 } 245 246 u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr) 247 { 248 return ofnode_translate_address(dev_ofnode(dev), in_addr); 249 } 250