diff options
| author | Simon Glass <sjg@chromium.org> | 2017-05-18 20:09:10 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-06-01 07:03:09 -0600 |
| commit | 23d632679151308b86c79389d8bbf3b481f7729f (patch) | |
| tree | 5859a4a3517d2200a990e894bd610e96f2d543cf /drivers/core | |
| parent | 40bb637dae10abff32ca2d952fd443e0e09fd524 (diff) | |
dm: regmap: Add support for livetree
Modify regmap to support livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core')
| -rw-r--r-- | drivers/core/regmap.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c index 7f21dee7e4..749d913372 100644 --- a/drivers/core/regmap.c +++ b/drivers/core/regmap.c @@ -12,8 +12,9 @@ #include <malloc.h> #include <mapmem.h> #include <regmap.h> - #include <asm/io.h> +#include <dm/of_addr.h> +#include <linux/ioport.h> DECLARE_GLOBAL_DATA_PTR; @@ -62,25 +63,25 @@ int regmap_init_mem_platdata(struct udevice *dev, u32 *reg, int count, #else int regmap_init_mem(struct udevice *dev, struct regmap **mapp) { - const void *blob = gd->fdt_blob; struct regmap_range *range; - const fdt32_t *cell; struct regmap *map; int count; int addr_len, size_len, both_len; - int parent; int len; int index; + ofnode node = dev_ofnode(dev); + struct resource r; - parent = dev_of_offset(dev->parent); - addr_len = fdt_address_cells(blob, parent); - size_len = fdt_size_cells(blob, parent); + addr_len = dev_read_addr_cells(dev->parent); + size_len = dev_read_size_cells(dev->parent); both_len = addr_len + size_len; - cell = fdt_getprop(blob, dev_of_offset(dev), "reg", &len); - len /= sizeof(*cell); + len = dev_read_size(dev, "reg"); + if (len < 0) + return len; + len /= sizeof(fdt32_t); count = len / both_len; - if (!cell || !count) + if (!count) return -EINVAL; map = regmap_alloc_count(count); @@ -88,12 +89,18 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp) return -ENOMEM; for (range = map->range, index = 0; count > 0; - count--, cell += both_len, range++, index++) { + count--, range++, index++) { fdt_size_t sz; - range->start = fdtdec_get_addr_size_fixed(blob, - dev_of_offset(dev), "reg", index, addr_len, - size_len, &sz, true); - range->size = sz; + if (of_live_active()) { + of_address_to_resource(ofnode_to_np(node), index, &r); + range->start = r.start; + range->size = r.end - r.start + 1; + } else { + range->start = fdtdec_get_addr_size_fixed(gd->fdt_blob, + dev_of_offset(dev), "reg", index, + addr_len, size_len, &sz, true); + range->size = sz; + } } map->base = map->range[0].start; |