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 11*38d21b41SSimon Glass #ifndef _DM_FDTADDR_H 12*38d21b41SSimon 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 /** 38a821c4afSSimon Glass * devfdt_map_physmem() - Read device address from reg property of the 39d6ffb00aSSimon Glass * device node and map the address into CPU address 40d6ffb00aSSimon Glass * space. 41d6ffb00aSSimon Glass * 42d6ffb00aSSimon Glass * @dev: Pointer to device 43d6ffb00aSSimon Glass * @size: size of the memory to map 44d6ffb00aSSimon Glass * 45d6ffb00aSSimon Glass * @return mapped address, or NULL if the device does not have reg 46d6ffb00aSSimon Glass * property. 47d6ffb00aSSimon Glass */ 48a821c4afSSimon Glass void *devfdt_map_physmem(struct udevice *dev, unsigned long size); 49d6ffb00aSSimon Glass 50d6ffb00aSSimon Glass /** 51a821c4afSSimon Glass * devfdt_get_addr_index() - Get the indexed reg property of a device 52d6ffb00aSSimon Glass * 53d6ffb00aSSimon Glass * @dev: Pointer to a device 54d6ffb00aSSimon Glass * @index: the 'reg' property can hold a list of <addr, size> pairs 55d6ffb00aSSimon Glass * and @index is used to select which one is required 56d6ffb00aSSimon Glass * 57d6ffb00aSSimon Glass * @return addr 58d6ffb00aSSimon Glass */ 59a821c4afSSimon Glass fdt_addr_t devfdt_get_addr_index(struct udevice *dev, int index); 60d6ffb00aSSimon Glass 61d6ffb00aSSimon Glass /** 62a821c4afSSimon Glass * devfdt_get_addr_size_index() - Get the indexed reg property of a device 63d6ffb00aSSimon Glass * 64d6ffb00aSSimon Glass * Returns the address and size specified in the 'reg' property of a device. 65d6ffb00aSSimon Glass * 66d6ffb00aSSimon Glass * @dev: Pointer to a device 67d6ffb00aSSimon Glass * @index: the 'reg' property can hold a list of <addr, size> pairs 68d6ffb00aSSimon Glass * and @index is used to select which one is required 69d6ffb00aSSimon Glass * @size: Pointer to size varible - this function returns the size 70d6ffb00aSSimon Glass * specified in the 'reg' property here 71d6ffb00aSSimon Glass * 72d6ffb00aSSimon Glass * @return addr 73d6ffb00aSSimon Glass */ 74a821c4afSSimon Glass fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index, 75d6ffb00aSSimon Glass fdt_size_t *size); 76d6ffb00aSSimon Glass 77d6ffb00aSSimon Glass /** 78a821c4afSSimon Glass * devfdt_get_addr_name() - Get the reg property of a device, indexed by name 79d6ffb00aSSimon Glass * 80d6ffb00aSSimon Glass * @dev: Pointer to a device 81d6ffb00aSSimon Glass * @name: the 'reg' property can hold a list of <addr, size> pairs, with the 82d6ffb00aSSimon Glass * 'reg-names' property providing named-based identification. @index 83d6ffb00aSSimon Glass * indicates the value to search for in 'reg-names'. 84d6ffb00aSSimon Glass * 85d6ffb00aSSimon Glass * @return addr 86d6ffb00aSSimon Glass */ 87a821c4afSSimon Glass fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name); 88d6ffb00aSSimon Glass 89d6ffb00aSSimon Glass /** 90d6ffb00aSSimon Glass * dm_set_translation_offset() - Set translation offset 91d6ffb00aSSimon Glass * @offs: Translation offset 92d6ffb00aSSimon Glass * 93d6ffb00aSSimon Glass * Some platforms need a special address translation. Those 94d6ffb00aSSimon Glass * platforms (e.g. mvebu in SPL) can configure a translation 95d6ffb00aSSimon Glass * offset in the DM by calling this function. It will be 96a821c4afSSimon Glass * added to all addresses returned in devfdt_get_addr(). 97d6ffb00aSSimon Glass */ 98d6ffb00aSSimon Glass void dm_set_translation_offset(fdt_addr_t offs); 99d6ffb00aSSimon Glass 100d6ffb00aSSimon Glass /** 101d6ffb00aSSimon Glass * dm_get_translation_offset() - Get translation offset 102d6ffb00aSSimon Glass * 103d6ffb00aSSimon Glass * This function returns the translation offset that can 104d6ffb00aSSimon Glass * be configured by calling dm_set_translation_offset(). 105d6ffb00aSSimon Glass * 106d6ffb00aSSimon Glass * @return translation offset for the device address (0 as default). 107d6ffb00aSSimon Glass */ 108d6ffb00aSSimon Glass fdt_addr_t dm_get_translation_offset(void); 109d6ffb00aSSimon Glass 110d6ffb00aSSimon Glass #endif 111