Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

regmap: use fdt address translation

Browse source 
In the DTS, the addresses are defined relative to the parent bus. We need
to translate them to get the address as seen by the CPU core.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Jean-Jacques Hiblot 2017-02-13 16:17:48 +01:00 committed by Simon Glass
parent b0d9512ab0
commit 1804044f30
1 changed files with 8 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
drivers/core/regmap.c
View file

@ -70,6 +70,7 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
int addr_len, size_len, both_len;
int parent;
int len;
int index;
parent = dev_of_offset(dev->parent);
addr_len = fdt_address_cells(blob, parent);
@ -86,13 +87,14 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
if (!map)
return -ENOMEM;
map->base = fdtdec_get_number(cell, addr_len);
for (range = map->range; count > 0;
count--, cell += both_len, range++) {
range->start = fdtdec_get_number(cell, addr_len);
range->size = fdtdec_get_number(cell + addr_len, size_len);
for (range = map->range, index = 0; count > 0;
count--, cell += both_len, range++, index++) {
fdt_size_t sz;
range->start = fdtdec_get_addr_size_fixed(blob, dev->of_offset,
"reg", index, addr_len, size_len, &sz, true);
range->size = sz;
}
map->base = map->range[0].start;
*mapp = map;