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 <dm/of_access.h> 12 13 int dev_read_u32_default(struct udevice *dev, const char *propname, int def) 14 { 15 return ofnode_read_u32_default(dev_ofnode(dev), propname, def); 16 } 17 18 const char *dev_read_string(struct udevice *dev, const char *propname) 19 { 20 return ofnode_read_string(dev_ofnode(dev), propname); 21 } 22 23 bool dev_read_bool(struct udevice *dev, const char *propname) 24 { 25 return ofnode_read_bool(dev_ofnode(dev), propname); 26 } 27 28 ofnode dev_read_subnode(struct udevice *dev, const char *subnode_name) 29 { 30 return ofnode_find_subnode(dev_ofnode(dev), subnode_name); 31 } 32 33 ofnode dev_read_first_subnode(struct udevice *dev) 34 { 35 return ofnode_first_subnode(dev_ofnode(dev)); 36 } 37 38 ofnode dev_read_next_subnode(ofnode node) 39 { 40 return ofnode_next_subnode(node); 41 } 42 43 int dev_read_size(struct udevice *dev, const char *propname) 44 { 45 return ofnode_read_size(dev_ofnode(dev), propname); 46 } 47 48 fdt_addr_t dev_read_addr_index(struct udevice *dev, int index) 49 { 50 if (ofnode_is_np(dev_ofnode(dev))) 51 return ofnode_get_addr_index(dev_ofnode(dev), index); 52 else 53 return devfdt_get_addr_index(dev, index); 54 } 55 56 fdt_addr_t dev_read_addr(struct udevice *dev) 57 { 58 return dev_read_addr_index(dev, 0); 59 } 60 61 void *dev_read_addr_ptr(struct udevice *dev) 62 { 63 fdt_addr_t addr = dev_read_addr(dev); 64 65 return (addr == FDT_ADDR_T_NONE) ? NULL : map_sysmem(addr, 0); 66 } 67 68 fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property, 69 fdt_size_t *sizep) 70 { 71 return ofnode_get_addr_size(dev_ofnode(dev), property, sizep); 72 } 73 74 const char *dev_read_name(struct udevice *dev) 75 { 76 if (!dev_of_valid(dev)) 77 return NULL; 78 79 return ofnode_get_name(dev_ofnode(dev)); 80 } 81 82 int dev_read_stringlist_search(struct udevice *dev, const char *property, 83 const char *string) 84 { 85 return ofnode_stringlist_search(dev_ofnode(dev), property, string); 86 } 87 88 int dev_read_string_index(struct udevice *dev, const char *propname, int index, 89 const char **outp) 90 { 91 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); 92 } 93 94 int dev_read_string_count(struct udevice *dev, const char *propname) 95 { 96 return ofnode_read_string_count(dev_ofnode(dev), propname); 97 } 98 99 int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, 100 const char *cells_name, int cell_count, 101 int index, 102 struct ofnode_phandle_args *out_args) 103 { 104 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name, 105 cells_name, cell_count, index, 106 out_args); 107 } 108 109 int dev_count_phandle_with_args(struct udevice *dev, 110 const char *list_name, const char *cells_name) 111 { 112 return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name, 113 cells_name); 114 } 115 116 117 int dev_read_addr_cells(struct udevice *dev) 118 { 119 return ofnode_read_addr_cells(dev_ofnode(dev)); 120 } 121 122 int dev_read_size_cells(struct udevice *dev) 123 { 124 return ofnode_read_size_cells(dev_ofnode(dev)); 125 } 126 127 int dev_read_simple_addr_cells(struct udevice *dev) 128 { 129 return ofnode_read_simple_addr_cells(dev_ofnode(dev)); 130 } 131 132 int dev_read_simple_size_cells(struct udevice *dev) 133 { 134 return ofnode_read_simple_size_cells(dev_ofnode(dev)); 135 } 136 137 int dev_read_phandle(struct udevice *dev) 138 { 139 ofnode node = dev_ofnode(dev); 140 141 if (ofnode_is_np(node)) 142 return ofnode_to_np(node)->phandle; 143 else 144 return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node)); 145 } 146 147 const void *dev_read_prop(struct udevice *dev, const char *propname, int *lenp) 148 { 149 return ofnode_get_property(dev_ofnode(dev), propname, lenp); 150 } 151 152 int dev_read_alias_seq(struct udevice *dev, int *devnump) 153 { 154 ofnode node = dev_ofnode(dev); 155 const char *uc_name = dev->uclass->uc_drv->name; 156 int ret; 157 158 if (ofnode_is_np(node)) { 159 ret = of_alias_get_id(ofnode_to_np(node), uc_name); 160 if (ret >= 0) 161 *devnump = ret; 162 } else { 163 ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name, 164 ofnode_to_offset(node), devnump); 165 } 166 167 return ret; 168 } 169 170 int dev_read_u32_array(struct udevice *dev, const char *propname, 171 u32 *out_values, size_t sz) 172 { 173 if (!dev_of_valid(dev)) 174 return -EINVAL; 175 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz); 176 } 177 178 int dev_write_u32_array(struct udevice *dev, const char *propname, 179 u32 *values, size_t sz) 180 { 181 if (!dev_of_valid(dev)) 182 return -EINVAL; 183 return ofnode_write_u32_array(dev_ofnode(dev), propname, values, sz); 184 } 185 186 const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname, 187 size_t sz) 188 { 189 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz); 190 } 191 192 int dev_read_enabled(struct udevice *dev) 193 { 194 ofnode node = dev_ofnode(dev); 195 196 if (ofnode_is_np(node)) 197 return of_device_is_available(ofnode_to_np(node)); 198 else 199 return fdtdec_get_is_enabled(gd->fdt_blob, 200 ofnode_to_offset(node)); 201 } 202 203 int dev_read_resource(struct udevice *dev, uint index, struct resource *res) 204 { 205 return ofnode_read_resource(dev_ofnode(dev), index, res); 206 } 207 208 int dev_read_resource_byname(struct udevice *dev, const char *name, 209 struct resource *res) 210 { 211 return ofnode_read_resource_byname(dev_ofnode(dev), name, res); 212 } 213