drivers/core/read.c

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