fdtaddr.h
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2017 Google, Inc
*
* (C) Copyright 2012
* Pavel Herrmann <morpheus.ibis@gmail.com>
* Marek Vasut <marex@denx.de>
*/
#ifndef _DM_FDTADDR_H
#define _DM_FDTADDR_H
#include <fdtdec.h>
struct udevice;
/**
* devfdt_get_addr() - Get the reg property of a device
*
* @dev: Pointer to a device
*
* @return addr
*/
fdt_addr_t devfdt_get_addr(const struct udevice *dev);
/**
* devfdt_get_addr_ptr() - Return pointer to the address of the reg property
* of a device
*
* @dev: Pointer to a device
*
* @return Pointer to addr, or NULL if there is no such property
*/
void *devfdt_get_addr_ptr(const struct udevice *dev);
/**
* devfdt_remap_addr() - Return pointer to the memory-mapped I/O address
* of the reg property of a device
*
* @dev: Pointer to a device
*
* @return Pointer to addr, or NULL if there is no such property
*/
void *devfdt_remap_addr(const struct udevice *dev);
/**
* devfdt_remap_addr_index() - Return indexed pointer to the memory-mapped
* I/O address of the reg property of a device
* @index: the 'reg' property can hold a list of <addr, size> pairs
* and @index is used to select which one is required
*
* @dev: Pointer to a device
*
* @return Pointer to addr, or NULL if there is no such property
*/
void *devfdt_remap_addr_index(const struct udevice *dev, int index);
/**
* devfdt_remap_addr_name() - Get the reg property of a device, indexed by
* name, as a memory-mapped I/O pointer
* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
* 'reg-names' property providing named-based identification. @index
* indicates the value to search for in 'reg-names'.
*
* @dev: Pointer to a device
*
* @return Pointer to addr, or NULL if there is no such property
*/
void *devfdt_remap_addr_name(const struct udevice *dev, const char *name);
/**
* devfdt_map_physmem() - Read device address from reg property of the
* device node and map the address into CPU address
* space.
*
* @dev: Pointer to device
* @size: size of the memory to map
*
* @return mapped address, or NULL if the device does not have reg
* property.
*/
void *devfdt_map_physmem(const struct udevice *dev, unsigned long size);
/**
* devfdt_get_addr_index() - Get the indexed reg property of a device
*
* @dev: Pointer to a device
* @index: the 'reg' property can hold a list of <addr, size> pairs
* and @index is used to select which one is required
*
* @return addr
*/
fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index);
/**
* devfdt_get_addr_size_index() - Get the indexed reg property of a device
*
* Returns the address and size specified in the 'reg' property of a device.
*
* @dev: Pointer to a device
* @index: the 'reg' property can hold a list of <addr, size> pairs
* and @index is used to select which one is required
* @size: Pointer to size varible - this function returns the size
* specified in the 'reg' property here
*
* @return addr
*/
fdt_addr_t devfdt_get_addr_size_index(const struct udevice *dev, int index,
fdt_size_t *size);
/**
* devfdt_get_addr_name() - Get the reg property of a device, indexed by name
*
* @dev: Pointer to a device
* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
* 'reg-names' property providing named-based identification. @index
* indicates the value to search for in 'reg-names'.
*
* @return addr
*/
fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name);
/**
* devfdt_get_addr_size_name() - Get the reg property and its size for a device,
* indexed by name
*
* Returns the address and size specified in the 'reg' property of a device.
*
* @dev: Pointer to a device
* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
* 'reg-names' property providing named-based identification. @index
* indicates the value to search for in 'reg-names'.
* @size: Pointer to size variable - this function returns the size
* specified in the 'reg' property here
*
* @return addr
*/
fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
const char *name, fdt_size_t *size);
/**
* devfdt_get_addr_pci() - Read an address and handle PCI address translation
*
* @dev: Device to read from
* @return address or FDT_ADDR_T_NONE if not found
*/
fdt_addr_t devfdt_get_addr_pci(const struct udevice *dev);
#endif