+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __REGMAP_H
/**
* struct regmap - a way of accessing hardware/bus registers
*
- * @base: Base address of register map
* @range_count: Number of ranges available within the map
- * @range: Pointer to the list of ranges, allocated if @range_count > 1
- * @base_range: If @range_count is <= 1, @range points here
+ * @ranges: Array of ranges
*/
struct regmap {
- phys_addr_t base;
int range_count;
- struct regmap_range *range, base_range;
+ struct regmap_range ranges[0];
};
/*
#define regmap_read32(map, ptr, member, valp) \
regmap_read(map, (uint32_t *)(ptr)->member - (uint32_t *)(ptr), valp)
+/**
+ * regmap_update_bits() - Perform a read/modify/write using a mask
+ *
+ * @map: The map returned by regmap_init_mem*()
+ * @offset: Offset of the memory
+ * @mask: Mask to apply to the read value
+ * @val: Value to apply to the value to write
+ */
+int regmap_update_bits(struct regmap *map, uint offset, uint mask, uint val);
+
/**
* regmap_init_mem() - Set up a new register map that uses memory access
*
* Use regmap_uninit() to free it.
*
+ * @node: Device node that uses this map
+ * @mapp: Returns allocated map
+ */
+int regmap_init_mem(ofnode node, struct regmap **mapp);
+
+/**
+ * regmap_init_mem_platdata() - Set up a new memory register map for of-platdata
+ *
+ * This creates a new regmap with a list of regions passed in, rather than
+ * using the device tree. It only supports 32-bit machines.
+ *
+ * Use regmap_uninit() to free it.
+ *
* @dev: Device that uses this map
+ * @reg: List of address, size pairs
+ * @count: Number of pairs (e.g. 1 if the regmap has a single entry)
* @mapp: Returns allocated map
*/
-int regmap_init_mem(struct udevice *dev, struct regmap **mapp);
+int regmap_init_mem_platdata(struct udevice *dev, fdt_val_t *reg, int count,
+ struct regmap **mapp);
/**
* regmap_get_range() - Obtain the base memory address of a regmap range