]>
git.ipfire.org Git - people/ms/u-boot.git/blob - drivers/core/read.c
2 * Copyright (c) 2017 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
10 #include <dm/of_access.h>
12 int dev_read_u32_default(struct udevice
*dev
, const char *propname
, int def
)
14 return ofnode_read_u32_default(dev_ofnode(dev
), propname
, def
);
17 const char *dev_read_string(struct udevice
*dev
, const char *propname
)
19 return ofnode_read_string(dev_ofnode(dev
), propname
);
22 bool dev_read_bool(struct udevice
*dev
, const char *propname
)
24 return ofnode_read_bool(dev_ofnode(dev
), propname
);
27 ofnode
dev_read_subnode(struct udevice
*dev
, const char *subnode_name
)
29 return ofnode_find_subnode(dev_ofnode(dev
), subnode_name
);
32 ofnode
dev_read_first_subnode(struct udevice
*dev
)
34 return ofnode_first_subnode(dev_ofnode(dev
));
37 ofnode
dev_read_next_subnode(ofnode node
)
39 return ofnode_next_subnode(node
);
42 int dev_read_size(struct udevice
*dev
, const char *propname
)
44 return ofnode_read_size(dev_ofnode(dev
), propname
);
47 fdt_addr_t
dev_read_addr_index(struct udevice
*dev
, int index
)
49 if (ofnode_is_np(dev_ofnode(dev
)))
50 return ofnode_get_addr_index(dev_ofnode(dev
), index
);
52 return devfdt_get_addr_index(dev
, index
);
55 fdt_addr_t
dev_read_addr(struct udevice
*dev
)
57 return dev_read_addr_index(dev
, 0);
60 void *dev_read_addr_ptr(struct udevice
*dev
)
62 fdt_addr_t addr
= dev_read_addr(dev
);
64 return (addr
== FDT_ADDR_T_NONE
) ? NULL
: (void *)addr
;
67 fdt_addr_t
dev_read_addr_size(struct udevice
*dev
, const char *property
,
70 return ofnode_get_addr_size(dev_ofnode(dev
), property
, sizep
);
73 const char *dev_read_name(struct udevice
*dev
)
75 return ofnode_get_name(dev_ofnode(dev
));
78 int dev_read_stringlist_search(struct udevice
*dev
, const char *property
,
81 return ofnode_stringlist_search(dev_ofnode(dev
), property
, string
);
84 int dev_read_string_index(struct udevice
*dev
, const char *propname
, int index
,
87 return ofnode_read_string_index(dev_ofnode(dev
), propname
, index
, outp
);
90 int dev_read_string_count(struct udevice
*dev
, const char *propname
)
92 return ofnode_read_string_count(dev_ofnode(dev
), propname
);
95 int dev_read_phandle_with_args(struct udevice
*dev
, const char *list_name
,
96 const char *cells_name
, int cell_count
,
98 struct ofnode_phandle_args
*out_args
)
100 return ofnode_parse_phandle_with_args(dev_ofnode(dev
), list_name
,
101 cells_name
, cell_count
, index
,
105 int dev_read_addr_cells(struct udevice
*dev
)
107 return ofnode_read_addr_cells(dev_ofnode(dev
));
110 int dev_read_size_cells(struct udevice
*dev
)
112 return ofnode_read_size_cells(dev_ofnode(dev
));
115 int dev_read_simple_addr_cells(struct udevice
*dev
)
117 return ofnode_read_simple_addr_cells(dev_ofnode(dev
));
120 int dev_read_simple_size_cells(struct udevice
*dev
)
122 return ofnode_read_simple_size_cells(dev_ofnode(dev
));
125 int dev_read_phandle(struct udevice
*dev
)
127 ofnode node
= dev_ofnode(dev
);
129 if (ofnode_is_np(node
))
130 return ofnode_to_np(node
)->phandle
;
132 return fdt_get_phandle(gd
->fdt_blob
, ofnode_to_offset(node
));
135 const void *dev_read_prop(struct udevice
*dev
, const char *propname
, int *lenp
)
137 return ofnode_get_property(dev_ofnode(dev
), propname
, lenp
);
140 int dev_read_alias_seq(struct udevice
*dev
, int *devnump
)
142 ofnode node
= dev_ofnode(dev
);
143 const char *uc_name
= dev
->uclass
->uc_drv
->name
;
146 if (ofnode_is_np(node
)) {
147 ret
= of_alias_get_id(ofnode_to_np(node
), uc_name
);
151 ret
= fdtdec_get_alias_seq(gd
->fdt_blob
, uc_name
,
152 ofnode_to_offset(node
), devnump
);
158 int dev_read_u32_array(struct udevice
*dev
, const char *propname
,
159 u32
*out_values
, size_t sz
)
161 return ofnode_read_u32_array(dev_ofnode(dev
), propname
, out_values
, sz
);
164 const uint8_t *dev_read_u8_array_ptr(struct udevice
*dev
, const char *propname
,
167 return ofnode_read_u8_array_ptr(dev_ofnode(dev
), propname
, sz
);
170 int dev_read_enabled(struct udevice
*dev
)
172 ofnode node
= dev_ofnode(dev
);
174 if (ofnode_is_np(node
))
175 return of_device_is_available(ofnode_to_np(node
));
177 return fdtdec_get_is_enabled(gd
->fdt_blob
,
178 ofnode_to_offset(node
));
181 int dev_read_resource(struct udevice
*dev
, uint index
, struct resource
*res
)
183 return ofnode_read_resource(dev_ofnode(dev
), index
, res
);
186 int dev_read_resource_byname(struct udevice
*dev
, const char *name
,
187 struct resource
*res
)
189 return ofnode_read_resource_byname(dev_ofnode(dev
), name
, res
);