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regmap: use fdt address translation

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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 Stefan Roese
parent d666558042
commit 5c8ef35980
1 changed files with 8 additions and 6 deletions
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14
drivers/core/regmap.c
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@ -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;