#include <mapmem.h>
#include <regmap.h>
+#include <asm/io.h>
+
DECLARE_GLOBAL_DATA_PTR;
+static struct regmap *regmap_alloc_count(int count)
+{
+ struct regmap *map;
+
+ map = malloc(sizeof(struct regmap));
+ if (!map)
+ return NULL;
+ if (count <= 1) {
+ map->range = &map->base_range;
+ } else {
+ map->range = malloc(count * sizeof(struct regmap_range));
+ if (!map->range) {
+ free(map);
+ return NULL;
+ }
+ }
+ map->range_count = count;
+
+ return map;
+}
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+int regmap_init_mem_platdata(struct udevice *dev, u32 *reg, int count,
+ struct regmap **mapp)
+{
+ struct regmap_range *range;
+ struct regmap *map;
+
+ map = regmap_alloc_count(count);
+ if (!map)
+ return -ENOMEM;
+
+ map->base = *reg;
+ for (range = map->range; count > 0; reg += 2, range++, count--) {
+ range->start = *reg;
+ range->size = reg[1];
+ }
+
+ *mapp = map;
+
+ return 0;
+}
+#else
int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
{
const void *blob = gd->fdt_blob;
if (!cell || !count)
return -EINVAL;
- map = malloc(sizeof(struct regmap));
+ map = regmap_alloc_count(count);
if (!map)
return -ENOMEM;
- if (count <= 1) {
- map->range = &map->base_range;
- } else {
- map->range = malloc(count * sizeof(struct regmap_range));
- if (!map->range) {
- free(map);
- return -ENOMEM;
- }
- }
-
map->base = fdtdec_get_number(cell, addr_len);
- map->range_count = count;
for (range = map->range; count > 0;
count--, cell += both_len, range++) {
return 0;
}
+#endif
void *regmap_get_range(struct regmap *map, unsigned int range_num)
{
return 0;
}
+
+int regmap_read(struct regmap *map, uint offset, uint *valp)
+{
+ uint32_t *ptr = map_physmem(map->base + offset, 4, MAP_NOCACHE);
+
+ *valp = le32_to_cpu(readl(ptr));
+
+ return 0;
+}
+
+int regmap_write(struct regmap *map, uint offset, uint val)
+{
+ uint32_t *ptr = map_physmem(map->base + offset, 4, MAP_NOCACHE);
+
+ writel(cpu_to_le32(val), ptr);
+
+ return 0;
+}