1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2017 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
9 #include <dm/of_access.h>
11 #include <asm/types.h>
13 #include <linux/ioport.h>
15 int dev_read_u32(const struct udevice *dev, const char *propname, u32 *outp)
17 return ofnode_read_u32(dev_ofnode(dev), propname, outp);
20 int dev_read_u32_default(const struct udevice *dev, const char *propname,
23 return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
26 int dev_read_u32_index(struct udevice *dev, const char *propname, int index,
29 return ofnode_read_u32_index(dev_ofnode(dev), propname, index, outp);
32 u32 dev_read_u32_index_default(struct udevice *dev, const char *propname,
35 return ofnode_read_u32_index_default(dev_ofnode(dev), propname, index,
39 int dev_read_s32(const struct udevice *dev, const char *propname, s32 *outp)
41 return ofnode_read_u32(dev_ofnode(dev), propname, (u32 *)outp);
44 int dev_read_s32_default(const struct udevice *dev, const char *propname,
47 return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
50 int dev_read_u32u(const struct udevice *dev, const char *propname, uint *outp)
55 ret = ofnode_read_u32(dev_ofnode(dev), propname, &val);
63 int dev_read_u64(const struct udevice *dev, const char *propname, u64 *outp)
65 return ofnode_read_u64(dev_ofnode(dev), propname, outp);
68 u64 dev_read_u64_default(const struct udevice *dev, const char *propname,
71 return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
74 const char *dev_read_string(const struct udevice *dev, const char *propname)
76 return ofnode_read_string(dev_ofnode(dev), propname);
79 bool dev_read_bool(const struct udevice *dev, const char *propname)
81 return ofnode_read_bool(dev_ofnode(dev), propname);
84 ofnode dev_read_subnode(const struct udevice *dev, const char *subnode_name)
86 return ofnode_find_subnode(dev_ofnode(dev), subnode_name);
89 ofnode dev_read_first_subnode(const struct udevice *dev)
91 return ofnode_first_subnode(dev_ofnode(dev));
94 ofnode dev_read_next_subnode(ofnode node)
96 return ofnode_next_subnode(node);
99 int dev_read_size(const struct udevice *dev, const char *propname)
101 return ofnode_read_size(dev_ofnode(dev), propname);
104 fdt_addr_t dev_read_addr_index(const struct udevice *dev, int index)
106 if (ofnode_is_np(dev_ofnode(dev)))
107 return ofnode_get_addr_index(dev_ofnode(dev), index);
109 return devfdt_get_addr_index(dev, index);
112 fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
115 if (ofnode_is_np(dev_ofnode(dev)))
116 return ofnode_get_addr_size_index(dev_ofnode(dev), index, size);
118 return devfdt_get_addr_size_index(dev, index, size);
121 void *dev_remap_addr_index(const struct udevice *dev, int index)
123 fdt_addr_t addr = dev_read_addr_index(dev, index);
125 if (addr == FDT_ADDR_T_NONE)
128 return map_physmem(addr, 0, MAP_NOCACHE);
131 fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name)
133 int index = dev_read_stringlist_search(dev, "reg-names", name);
136 return FDT_ADDR_T_NONE;
138 return dev_read_addr_index(dev, index);
141 fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
144 int index = dev_read_stringlist_search(dev, "reg-names", name);
147 return FDT_ADDR_T_NONE;
149 return dev_read_addr_size_index(dev, index, size);
152 void *dev_remap_addr_name(const struct udevice *dev, const char *name)
154 fdt_addr_t addr = dev_read_addr_name(dev, name);
156 if (addr == FDT_ADDR_T_NONE)
159 return map_physmem(addr, 0, MAP_NOCACHE);
162 fdt_addr_t dev_read_addr(const struct udevice *dev)
164 return dev_read_addr_index(dev, 0);
167 void *dev_read_addr_ptr(const struct udevice *dev)
169 fdt_addr_t addr = dev_read_addr(dev);
171 return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)(uintptr_t)addr;
174 void *dev_remap_addr(const struct udevice *dev)
176 return dev_remap_addr_index(dev, 0);
179 fdt_addr_t dev_read_addr_size(const struct udevice *dev, const char *property,
182 return ofnode_get_addr_size(dev_ofnode(dev), property, sizep);
185 const char *dev_read_name(const struct udevice *dev)
187 return ofnode_get_name(dev_ofnode(dev));
190 int dev_read_stringlist_search(const struct udevice *dev, const char *property,
193 return ofnode_stringlist_search(dev_ofnode(dev), property, string);
196 int dev_read_string_index(const struct udevice *dev, const char *propname,
197 int index, const char **outp)
199 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp);
202 int dev_read_string_count(const struct udevice *dev, const char *propname)
204 return ofnode_read_string_count(dev_ofnode(dev), propname);
207 int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
208 const char *cells_name, int cell_count,
209 int index, struct ofnode_phandle_args *out_args)
211 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name,
212 cells_name, cell_count, index,
216 int dev_count_phandle_with_args(const struct udevice *dev,
217 const char *list_name, const char *cells_name)
219 return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
223 int dev_read_addr_cells(const struct udevice *dev)
225 return ofnode_read_addr_cells(dev_ofnode(dev));
228 int dev_read_size_cells(const struct udevice *dev)
230 return ofnode_read_size_cells(dev_ofnode(dev));
233 int dev_read_simple_addr_cells(const struct udevice *dev)
235 return ofnode_read_simple_addr_cells(dev_ofnode(dev));
238 int dev_read_simple_size_cells(const struct udevice *dev)
240 return ofnode_read_simple_size_cells(dev_ofnode(dev));
243 int dev_read_phandle(const struct udevice *dev)
245 ofnode node = dev_ofnode(dev);
247 if (ofnode_is_np(node))
248 return ofnode_to_np(node)->phandle;
250 return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node));
253 const void *dev_read_prop(const struct udevice *dev, const char *propname,
256 return ofnode_get_property(dev_ofnode(dev), propname, lenp);
259 int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop)
261 return ofnode_get_first_property(dev_ofnode(dev), prop);
264 int dev_read_next_prop(struct ofprop *prop)
266 return ofnode_get_next_property(prop);
269 const void *dev_read_prop_by_prop(struct ofprop *prop,
270 const char **propname, int *lenp)
272 return ofnode_get_property_by_prop(prop, propname, lenp);
275 int dev_read_alias_seq(const struct udevice *dev, int *devnump)
277 ofnode node = dev_ofnode(dev);
278 const char *uc_name = dev->uclass->uc_drv->name;
281 if (ofnode_is_np(node)) {
282 ret = of_alias_get_id(ofnode_to_np(node), uc_name);
286 #if CONFIG_IS_ENABLED(OF_CONTROL)
287 ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name,
288 ofnode_to_offset(node), devnump);
295 int dev_read_u32_array(const struct udevice *dev, const char *propname,
296 u32 *out_values, size_t sz)
298 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz);
301 const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
302 const char *propname, size_t sz)
304 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz);
307 int dev_read_enabled(const struct udevice *dev)
309 ofnode node = dev_ofnode(dev);
311 if (ofnode_is_np(node))
312 return of_device_is_available(ofnode_to_np(node));
314 return fdtdec_get_is_enabled(gd->fdt_blob,
315 ofnode_to_offset(node));
318 int dev_read_resource(const struct udevice *dev, uint index,
319 struct resource *res)
321 return ofnode_read_resource(dev_ofnode(dev), index, res);
324 int dev_read_resource_byname(const struct udevice *dev, const char *name,
325 struct resource *res)
327 return ofnode_read_resource_byname(dev_ofnode(dev), name, res);
330 u64 dev_translate_address(const struct udevice *dev, const fdt32_t *in_addr)
332 return ofnode_translate_address(dev_ofnode(dev), in_addr);
335 u64 dev_translate_dma_address(const struct udevice *dev, const fdt32_t *in_addr)
337 return ofnode_translate_dma_address(dev_ofnode(dev), in_addr);
340 int dev_read_alias_highest_id(const char *stem)
342 if (of_live_active())
343 return of_alias_get_highest_id(stem);
345 return fdtdec_get_alias_highest_id(gd->fdt_blob, stem);
348 fdt_addr_t dev_read_addr_pci(const struct udevice *dev)
352 addr = dev_read_addr(dev);
353 if (addr == FDT_ADDR_T_NONE && !of_live_active())
354 addr = devfdt_get_addr_pci(dev);
359 int dev_get_child_count(const struct udevice *dev)
361 return ofnode_get_child_count(dev_ofnode(dev));
364 int dev_read_pci_bus_range(const struct udevice *dev,
365 struct resource *res)
370 values = dev_read_prop(dev, "bus-range", &len);
371 if (!values || len < sizeof(*values) * 2)
374 res->start = *values++;