1d6ffb00aSSimon Glass /* 2d6ffb00aSSimon Glass * Copyright (c) 2017 Google, Inc 3d6ffb00aSSimon Glass * 4d6ffb00aSSimon Glass * (C) Copyright 2012 5d6ffb00aSSimon Glass * Pavel Herrmann <morpheus.ibis@gmail.com> 6d6ffb00aSSimon Glass * Marek Vasut <marex@denx.de> 7d6ffb00aSSimon Glass * 8d6ffb00aSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 9d6ffb00aSSimon Glass */ 10d6ffb00aSSimon Glass 1138d21b41SSimon Glass #ifndef _DM_FDTADDR_H 1238d21b41SSimon Glass #define _DM_FDTADDR_H 13d6ffb00aSSimon Glass 14d6ffb00aSSimon Glass #include <fdtdec.h> 15d6ffb00aSSimon Glass 16d6ffb00aSSimon Glass struct udevice; 17d6ffb00aSSimon Glass 18d6ffb00aSSimon Glass /** 19a821c4afSSimon Glass * devfdt_get_addr() - Get the reg property of a device 20d6ffb00aSSimon Glass * 21d6ffb00aSSimon Glass * @dev: Pointer to a device 22d6ffb00aSSimon Glass * 23d6ffb00aSSimon Glass * @return addr 24d6ffb00aSSimon Glass */ 25a821c4afSSimon Glass fdt_addr_t devfdt_get_addr(struct udevice *dev); 26d6ffb00aSSimon Glass 27d6ffb00aSSimon Glass /** 28a821c4afSSimon Glass * devfdt_get_addr_ptr() - Return pointer to the address of the reg property 29d6ffb00aSSimon Glass * of a device 30d6ffb00aSSimon Glass * 31d6ffb00aSSimon Glass * @dev: Pointer to a device 32d6ffb00aSSimon Glass * 33d6ffb00aSSimon Glass * @return Pointer to addr, or NULL if there is no such property 34d6ffb00aSSimon Glass */ 35a821c4afSSimon Glass void *devfdt_get_addr_ptr(struct udevice *dev); 36d6ffb00aSSimon Glass 37d6ffb00aSSimon Glass /** 38*8f7de514SShawn Lin * devfdt_remap_addr_index() - Return indexed pointer to the memory-mapped 39*8f7de514SShawn Lin * I/O address of the reg property of a device 40*8f7de514SShawn Lin * @index: the 'reg' property can hold a list of <addr, size> pairs 41*8f7de514SShawn Lin * and @index is used to select which one is required 42*8f7de514SShawn Lin * 43*8f7de514SShawn Lin * @dev: Pointer to a device 44*8f7de514SShawn Lin * 45*8f7de514SShawn Lin * Return: Pointer to addr, or NULL if there is no such property 46*8f7de514SShawn Lin */ 47*8f7de514SShawn Lin void *devfdt_remap_addr_index(struct udevice *dev, int index); 48*8f7de514SShawn Lin 49*8f7de514SShawn Lin /** 50a821c4afSSimon Glass * devfdt_map_physmem() - Read device address from reg property of the 51d6ffb00aSSimon Glass * device node and map the address into CPU address 52d6ffb00aSSimon Glass * space. 53d6ffb00aSSimon Glass * 54d6ffb00aSSimon Glass * @dev: Pointer to device 55d6ffb00aSSimon Glass * @size: size of the memory to map 56d6ffb00aSSimon Glass * 57d6ffb00aSSimon Glass * @return mapped address, or NULL if the device does not have reg 58d6ffb00aSSimon Glass * property. 59d6ffb00aSSimon Glass */ 60a821c4afSSimon Glass void *devfdt_map_physmem(struct udevice *dev, unsigned long size); 61d6ffb00aSSimon Glass 62d6ffb00aSSimon Glass /** 63a821c4afSSimon Glass * devfdt_get_addr_index() - Get the indexed reg property of a device 64d6ffb00aSSimon Glass * 65d6ffb00aSSimon Glass * @dev: Pointer to a device 66d6ffb00aSSimon Glass * @index: the 'reg' property can hold a list of <addr, size> pairs 67d6ffb00aSSimon Glass * and @index is used to select which one is required 68d6ffb00aSSimon Glass * 69d6ffb00aSSimon Glass * @return addr 70d6ffb00aSSimon Glass */ 71a821c4afSSimon Glass fdt_addr_t devfdt_get_addr_index(struct udevice *dev, int index); 72d6ffb00aSSimon Glass 73d6ffb00aSSimon Glass /** 74a821c4afSSimon Glass * devfdt_get_addr_size_index() - Get the indexed reg property of a device 75d6ffb00aSSimon Glass * 76d6ffb00aSSimon Glass * Returns the address and size specified in the 'reg' property of a device. 77d6ffb00aSSimon Glass * 78d6ffb00aSSimon Glass * @dev: Pointer to a device 79d6ffb00aSSimon Glass * @index: the 'reg' property can hold a list of <addr, size> pairs 80d6ffb00aSSimon Glass * and @index is used to select which one is required 81d6ffb00aSSimon Glass * @size: Pointer to size varible - this function returns the size 82d6ffb00aSSimon Glass * specified in the 'reg' property here 83d6ffb00aSSimon Glass * 84d6ffb00aSSimon Glass * @return addr 85d6ffb00aSSimon Glass */ 86a821c4afSSimon Glass fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index, 87d6ffb00aSSimon Glass fdt_size_t *size); 88d6ffb00aSSimon Glass 89d6ffb00aSSimon Glass /** 90a821c4afSSimon Glass * devfdt_get_addr_name() - Get the reg property of a device, indexed by name 91d6ffb00aSSimon Glass * 92d6ffb00aSSimon Glass * @dev: Pointer to a device 93d6ffb00aSSimon Glass * @name: the 'reg' property can hold a list of <addr, size> pairs, with the 94d6ffb00aSSimon Glass * 'reg-names' property providing named-based identification. @index 95d6ffb00aSSimon Glass * indicates the value to search for in 'reg-names'. 96d6ffb00aSSimon Glass * 97d6ffb00aSSimon Glass * @return addr 98d6ffb00aSSimon Glass */ 99a821c4afSSimon Glass fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name); 100d6ffb00aSSimon Glass 101d6ffb00aSSimon Glass /** 102d6ffb00aSSimon Glass * dm_set_translation_offset() - Set translation offset 103d6ffb00aSSimon Glass * @offs: Translation offset 104d6ffb00aSSimon Glass * 105d6ffb00aSSimon Glass * Some platforms need a special address translation. Those 106d6ffb00aSSimon Glass * platforms (e.g. mvebu in SPL) can configure a translation 107d6ffb00aSSimon Glass * offset in the DM by calling this function. It will be 108a821c4afSSimon Glass * added to all addresses returned in devfdt_get_addr(). 109d6ffb00aSSimon Glass */ 110d6ffb00aSSimon Glass void dm_set_translation_offset(fdt_addr_t offs); 111d6ffb00aSSimon Glass 112d6ffb00aSSimon Glass /** 113d6ffb00aSSimon Glass * dm_get_translation_offset() - Get translation offset 114d6ffb00aSSimon Glass * 115d6ffb00aSSimon Glass * This function returns the translation offset that can 116d6ffb00aSSimon Glass * be configured by calling dm_set_translation_offset(). 117d6ffb00aSSimon Glass * 118d6ffb00aSSimon Glass * @return translation offset for the device address (0 as default). 119d6ffb00aSSimon Glass */ 120d6ffb00aSSimon Glass fdt_addr_t dm_get_translation_offset(void); 121d6ffb00aSSimon Glass 122d6ffb00aSSimon Glass #endif 123