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 <dm.h>
8#include <dm/of_access.h>
9#include <mapmem.h>
10#include <asm/global_data.h>
11#include <asm/types.h>
12#include <asm/io.h>
13#include <linux/ioport.h>
14
15int dev_read_u8(const struct udevice *dev, const char *propname, u8 *outp)
16{
17	return ofnode_read_u8(dev_ofnode(dev), propname, outp);
18}
19
20u8 dev_read_u8_default(const struct udevice *dev, const char *propname, u8 def)
21{
22	return ofnode_read_u8_default(dev_ofnode(dev), propname, def);
23}
24
25int dev_read_u16(const struct udevice *dev, const char *propname, u16 *outp)
26{
27	return ofnode_read_u16(dev_ofnode(dev), propname, outp);
28}
29
30u16 dev_read_u16_default(const struct udevice *dev, const char *propname,
31			 u16 def)
32{
33	return ofnode_read_u16_default(dev_ofnode(dev), propname, def);
34}
35
36int dev_read_u32(const struct udevice *dev, const char *propname, u32 *outp)
37{
38	return ofnode_read_u32(dev_ofnode(dev), propname, outp);
39}
40
41int dev_read_u32_default(const struct udevice *dev, const char *propname,
42			 int def)
43{
44	return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
45}
46
47int dev_read_u32_index(struct udevice *dev, const char *propname, int index,
48		       u32 *outp)
49{
50	return ofnode_read_u32_index(dev_ofnode(dev), propname, index, outp);
51}
52
53u32 dev_read_u32_index_default(struct udevice *dev, const char *propname,
54			       int index, u32 def)
55{
56	return ofnode_read_u32_index_default(dev_ofnode(dev), propname, index,
57					     def);
58}
59
60int dev_read_s32(const struct udevice *dev, const char *propname, s32 *outp)
61{
62	return ofnode_read_u32(dev_ofnode(dev), propname, (u32 *)outp);
63}
64
65int dev_read_s32_default(const struct udevice *dev, const char *propname,
66			 int def)
67{
68	return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
69}
70
71int dev_read_u32u(const struct udevice *dev, const char *propname, uint *outp)
72{
73	u32 val;
74	int ret;
75
76	ret = ofnode_read_u32(dev_ofnode(dev), propname, &val);
77	if (ret)
78		return ret;
79	*outp = val;
80
81	return 0;
82}
83
84int dev_read_u64(const struct udevice *dev, const char *propname, u64 *outp)
85{
86	return ofnode_read_u64(dev_ofnode(dev), propname, outp);
87}
88
89u64 dev_read_u64_default(const struct udevice *dev, const char *propname,
90			 u64 def)
91{
92	return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
93}
94
95const char *dev_read_string(const struct udevice *dev, const char *propname)
96{
97	return ofnode_read_string(dev_ofnode(dev), propname);
98}
99
100bool dev_read_bool(const struct udevice *dev, const char *propname)
101{
102	return ofnode_read_bool(dev_ofnode(dev), propname);
103}
104
105ofnode dev_read_subnode(const struct udevice *dev, const char *subnode_name)
106{
107	return ofnode_find_subnode(dev_ofnode(dev), subnode_name);
108}
109
110ofnode dev_read_first_subnode(const struct udevice *dev)
111{
112	return ofnode_first_subnode(dev_ofnode(dev));
113}
114
115ofnode dev_read_next_subnode(ofnode node)
116{
117	return ofnode_next_subnode(node);
118}
119
120int dev_read_size(const struct udevice *dev, const char *propname)
121{
122	return ofnode_read_size(dev_ofnode(dev), propname);
123}
124
125fdt_addr_t dev_read_addr_index(const struct udevice *dev, int index)
126{
127	if (ofnode_is_np(dev_ofnode(dev)))
128		return ofnode_get_addr_index(dev_ofnode(dev), index);
129	else
130		return devfdt_get_addr_index(dev, index);
131}
132
133void *dev_read_addr_index_ptr(const struct udevice *dev, int index)
134{
135	fdt_addr_t addr = dev_read_addr_index(dev, index);
136
137	if (addr == FDT_ADDR_T_NONE)
138		return NULL;
139
140	return map_sysmem(addr, 0);
141}
142
143fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
144				    fdt_size_t *size)
145{
146	if (ofnode_is_np(dev_ofnode(dev)))
147		return ofnode_get_addr_size_index(dev_ofnode(dev), index, size);
148	else
149		return devfdt_get_addr_size_index(dev, index, size);
150}
151
152void *dev_read_addr_size_index_ptr(const struct udevice *dev, int index,
153				   fdt_size_t *size)
154{
155	fdt_addr_t addr = dev_read_addr_size_index(dev, index, size);
156
157	if (addr == FDT_ADDR_T_NONE)
158		return NULL;
159
160	return map_sysmem(addr, 0);
161}
162
163void *dev_remap_addr_index(const struct udevice *dev, int index)
164{
165	fdt_addr_t addr = dev_read_addr_index(dev, index);
166
167	if (addr == FDT_ADDR_T_NONE)
168		return NULL;
169
170	return map_physmem(addr, 0, MAP_NOCACHE);
171}
172
173fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name)
174{
175	int index = dev_read_stringlist_search(dev, "reg-names", name);
176
177	if (index < 0)
178		return FDT_ADDR_T_NONE;
179	else
180		return dev_read_addr_index(dev, index);
181}
182
183void *dev_read_addr_name_ptr(const struct udevice *dev, const char *name)
184{
185	fdt_addr_t addr = dev_read_addr_name(dev, name);
186
187	if (addr == FDT_ADDR_T_NONE)
188		return NULL;
189
190	return map_sysmem(addr, 0);
191}
192
193fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
194				   fdt_size_t *size)
195{
196	int index = dev_read_stringlist_search(dev, "reg-names", name);
197
198	if (index < 0)
199		return FDT_ADDR_T_NONE;
200	else
201		return dev_read_addr_size_index(dev, index, size);
202}
203
204void *dev_read_addr_size_name_ptr(const struct udevice *dev, const char *name,
205				  fdt_size_t *size)
206{
207	fdt_addr_t addr = dev_read_addr_size_name(dev, name, size);
208
209	if (addr == FDT_ADDR_T_NONE)
210		return NULL;
211
212	return map_sysmem(addr, 0);
213}
214
215void *dev_remap_addr_name(const struct udevice *dev, const char *name)
216{
217	fdt_addr_t addr = dev_read_addr_name(dev, name);
218
219	if (addr == FDT_ADDR_T_NONE)
220		return NULL;
221
222	return map_physmem(addr, 0, MAP_NOCACHE);
223}
224
225fdt_addr_t dev_read_addr(const struct udevice *dev)
226{
227	return dev_read_addr_index(dev, 0);
228}
229
230void *dev_read_addr_ptr(const struct udevice *dev)
231{
232	fdt_addr_t addr = dev_read_addr(dev);
233
234	if (addr == FDT_ADDR_T_NONE)
235		return NULL;
236
237	return map_sysmem(addr, 0);
238}
239
240void *dev_remap_addr(const struct udevice *dev)
241{
242	return dev_remap_addr_index(dev, 0);
243}
244
245fdt_addr_t dev_read_addr_size(const struct udevice *dev, fdt_size_t *sizep)
246{
247	return dev_read_addr_size_index(dev, 0, sizep);
248}
249
250const char *dev_read_name(const struct udevice *dev)
251{
252	return ofnode_get_name(dev_ofnode(dev));
253}
254
255int dev_read_stringlist_search(const struct udevice *dev, const char *property,
256			       const char *string)
257{
258	return ofnode_stringlist_search(dev_ofnode(dev), property, string);
259}
260
261int dev_read_string_index(const struct udevice *dev, const char *propname,
262			  int index, const char **outp)
263{
264	return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp);
265}
266
267int dev_read_string_count(const struct udevice *dev, const char *propname)
268{
269	return ofnode_read_string_count(dev_ofnode(dev), propname);
270}
271
272int dev_read_string_list(const struct udevice *dev, const char *propname,
273			 const char ***listp)
274{
275	return ofnode_read_string_list(dev_ofnode(dev), propname, listp);
276}
277
278int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
279			       const char *cells_name, int cell_count,
280			       int index, struct ofnode_phandle_args *out_args)
281{
282	return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name,
283					      cells_name, cell_count, index,
284					      out_args);
285}
286
287int dev_count_phandle_with_args(const struct udevice *dev,
288				const char *list_name, const char *cells_name,
289				int cell_count)
290{
291	return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
292					      cells_name, cell_count);
293}
294
295int dev_read_addr_cells(const struct udevice *dev)
296{
297	return ofnode_read_addr_cells(dev_ofnode(dev));
298}
299
300int dev_read_size_cells(const struct udevice *dev)
301{
302	return ofnode_read_size_cells(dev_ofnode(dev));
303}
304
305int dev_read_simple_addr_cells(const struct udevice *dev)
306{
307	return ofnode_read_simple_addr_cells(dev_ofnode(dev));
308}
309
310int dev_read_simple_size_cells(const struct udevice *dev)
311{
312	return ofnode_read_simple_size_cells(dev_ofnode(dev));
313}
314
315int dev_read_phandle(const struct udevice *dev)
316{
317	ofnode node = dev_ofnode(dev);
318
319	if (ofnode_is_np(node))
320		return ofnode_to_np(node)->phandle;
321	else
322		return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node));
323}
324
325const void *dev_read_prop(const struct udevice *dev, const char *propname,
326			  int *lenp)
327{
328	return ofnode_get_property(dev_ofnode(dev), propname, lenp);
329}
330
331int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop)
332{
333	return ofnode_first_property(dev_ofnode(dev), prop);
334}
335
336int dev_read_next_prop(struct ofprop *prop)
337{
338	return ofnode_next_property(prop);
339}
340
341const void *dev_read_prop_by_prop(struct ofprop *prop,
342				  const char **propname, int *lenp)
343{
344	return ofprop_get_property(prop, propname, lenp);
345}
346
347int dev_read_alias_seq(const struct udevice *dev, int *devnump)
348{
349	ofnode node = dev_ofnode(dev);
350	const char *uc_name = dev->uclass->uc_drv->name;
351	int ret = -ENOTSUPP;
352
353	if (ofnode_is_np(node)) {
354		ret = of_alias_get_id(ofnode_to_np(node), uc_name);
355		if (ret >= 0) {
356			*devnump = ret;
357			ret = 0;
358		}
359	} else {
360#if CONFIG_IS_ENABLED(OF_CONTROL)
361		ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name,
362					   ofnode_to_offset(node), devnump);
363#endif
364	}
365
366	return ret;
367}
368
369int dev_read_u32_array(const struct udevice *dev, const char *propname,
370		       u32 *out_values, size_t sz)
371{
372	return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz);
373}
374
375const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
376				     const char *propname, size_t sz)
377{
378	return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz);
379}
380
381int dev_read_enabled(const struct udevice *dev)
382{
383	ofnode node = dev_ofnode(dev);
384
385	if (ofnode_is_np(node))
386		return of_device_is_available(ofnode_to_np(node));
387	else
388		return fdtdec_get_is_enabled(gd->fdt_blob,
389					     ofnode_to_offset(node));
390}
391
392int dev_read_resource(const struct udevice *dev, uint index,
393		      struct resource *res)
394{
395	return ofnode_read_resource(dev_ofnode(dev), index, res);
396}
397
398int dev_read_resource_byname(const struct udevice *dev, const char *name,
399			     struct resource *res)
400{
401	return ofnode_read_resource_byname(dev_ofnode(dev), name, res);
402}
403
404u64 dev_translate_address(const struct udevice *dev, const fdt32_t *in_addr)
405{
406	return ofnode_translate_address(dev_ofnode(dev), in_addr);
407}
408
409u64 dev_translate_dma_address(const struct udevice *dev, const fdt32_t *in_addr)
410{
411	return ofnode_translate_dma_address(dev_ofnode(dev), in_addr);
412}
413
414int dev_get_dma_range(const struct udevice *dev, phys_addr_t *cpu,
415		      dma_addr_t *bus, u64 *size)
416{
417	return ofnode_get_dma_range(dev_ofnode(dev), cpu, bus, size);
418}
419
420int dev_read_alias_highest_id(const char *stem)
421{
422	if (of_live_active())
423		return of_alias_get_highest_id(stem);
424
425	return fdtdec_get_alias_highest_id(gd->fdt_blob, stem);
426}
427
428fdt_addr_t dev_read_addr_pci(const struct udevice *dev, fdt_size_t *sizep)
429{
430	ulong addr;
431
432	addr = dev_read_addr(dev);
433	if (sizep)
434		*sizep = 0;
435	if (addr == FDT_ADDR_T_NONE && !of_live_active())
436		addr = devfdt_get_addr_pci(dev, sizep);
437
438	return addr;
439}
440
441int dev_get_child_count(const struct udevice *dev)
442{
443	return ofnode_get_child_count(dev_ofnode(dev));
444}
445
446int dev_read_pci_bus_range(const struct udevice *dev,
447			   struct resource *res)
448{
449	const u32 *values;
450	int len;
451
452	values = dev_read_prop(dev, "bus-range", &len);
453	if (!values || len < sizeof(*values) * 2)
454		return -EINVAL;
455
456	res->start = *values++;
457	res->end = *values;
458
459	return 0;
460}
461
462int dev_decode_display_timing(const struct udevice *dev, int index,
463			      struct display_timing *config)
464{
465	return ofnode_decode_display_timing(dev_ofnode(dev), index, config);
466}
467
468int dev_decode_panel_timing(const struct udevice *dev,
469			    struct display_timing *config)
470{
471	return ofnode_decode_panel_timing(dev_ofnode(dev), config);
472}
473
474ofnode dev_get_phy_node(const struct udevice *dev)
475{
476	return ofnode_get_phy_node(dev_ofnode(dev));
477}
478
479phy_interface_t dev_read_phy_mode(const struct udevice *dev)
480{
481	return ofnode_read_phy_mode(dev_ofnode(dev));
482}
483