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 return ofnode_get_name(dev_ofnode(dev)); 77 } 78 79 int dev_read_stringlist_search(struct udevice *dev, const char *property, 80 const char *string) 81 { 82 return ofnode_stringlist_search(dev_ofnode(dev), property, string); 83 } 84 85 int dev_read_string_index(struct udevice *dev, const char *propname, int index, 86 const char **outp) 87 { 88 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); 89 } 90 91 int dev_read_string_count(struct udevice *dev, const char *propname) 92 { 93 return ofnode_read_string_count(dev_ofnode(dev), propname); 94 } 95 96 int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, 97 const char *cells_name, int cell_count, 98 int index, 99 struct ofnode_phandle_args *out_args) 100 { 101 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name, 102 cells_name, cell_count, index, 103 out_args); 104 } 105 106 int dev_read_addr_cells(struct udevice *dev) 107 { 108 return ofnode_read_addr_cells(dev_ofnode(dev)); 109 } 110 111 int dev_read_size_cells(struct udevice *dev) 112 { 113 return ofnode_read_size_cells(dev_ofnode(dev)); 114 } 115 116 int dev_read_simple_addr_cells(struct udevice *dev) 117 { 118 return ofnode_read_simple_addr_cells(dev_ofnode(dev)); 119 } 120 121 int dev_read_simple_size_cells(struct udevice *dev) 122 { 123 return ofnode_read_simple_size_cells(dev_ofnode(dev)); 124 } 125 126 int dev_read_phandle(struct udevice *dev) 127 { 128 ofnode node = dev_ofnode(dev); 129 130 if (ofnode_is_np(node)) 131 return ofnode_to_np(node)->phandle; 132 else 133 return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node)); 134 } 135 136 const void *dev_read_prop(struct udevice *dev, const char *propname, int *lenp) 137 { 138 return ofnode_get_property(dev_ofnode(dev), propname, lenp); 139 } 140 141 int dev_read_alias_seq(struct udevice *dev, int *devnump) 142 { 143 ofnode node = dev_ofnode(dev); 144 const char *uc_name = dev->uclass->uc_drv->name; 145 int ret; 146 147 if (ofnode_is_np(node)) { 148 ret = of_alias_get_id(ofnode_to_np(node), uc_name); 149 if (ret >= 0) 150 *devnump = ret; 151 } else { 152 ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name, 153 ofnode_to_offset(node), devnump); 154 } 155 156 return ret; 157 } 158 159 int dev_read_u32_array(struct udevice *dev, const char *propname, 160 u32 *out_values, size_t sz) 161 { 162 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz); 163 } 164 165 const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname, 166 size_t sz) 167 { 168 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz); 169 } 170 171 int dev_read_enabled(struct udevice *dev) 172 { 173 ofnode node = dev_ofnode(dev); 174 175 if (ofnode_is_np(node)) 176 return of_device_is_available(ofnode_to_np(node)); 177 else 178 return fdtdec_get_is_enabled(gd->fdt_blob, 179 ofnode_to_offset(node)); 180 } 181 182 int dev_read_resource(struct udevice *dev, uint index, struct resource *res) 183 { 184 return ofnode_read_resource(dev_ofnode(dev), index, res); 185 } 186 187 int dev_read_resource_byname(struct udevice *dev, const char *name, 188 struct resource *res) 189 { 190 return ofnode_read_resource_byname(dev_ofnode(dev), name, res); 191 } 192