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bc8fa1cbfd
Same as dev_read_addr_name[_size](), but returns a pointer, cast through map_sysmem(). Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Simon Glass <sjg@chromium.org>
208 lines
7.1 KiB
C
208 lines
7.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2017 Google, Inc
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*
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* (C) Copyright 2012
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* Pavel Herrmann <morpheus.ibis@gmail.com>
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* Marek Vasut <marex@denx.de>
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*/
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#ifndef _DM_FDTADDR_H
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#define _DM_FDTADDR_H
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#include <fdtdec.h>
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struct udevice;
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/**
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* devfdt_get_addr() - Get the reg property of a device
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*
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* @dev: Pointer to a device
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*
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* Return: Address, or FDT_ADDR_T_NONE if there is no such property
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*/
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fdt_addr_t devfdt_get_addr(const struct udevice *dev);
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/**
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* devfdt_get_addr_ptr() - Return pointer to the address of the reg property
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* of a device
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*
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* @dev: Pointer to a device
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_get_addr_ptr(const struct udevice *dev);
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/**
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* devfdt_remap_addr() - Return pointer to the memory-mapped I/O address
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* of the reg property of a device
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*
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* @dev: Pointer to a device
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_remap_addr(const struct udevice *dev);
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/**
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* devfdt_remap_addr_index() - Return indexed pointer to the memory-mapped
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* I/O address of the reg property of a device
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* @dev: Pointer to a device
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_remap_addr_index(const struct udevice *dev, int index);
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/**
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* devfdt_remap_addr_name() - Get the reg property of a device, indexed by
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* name, as a memory-mapped I/O pointer
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @name
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* indicates the value to search for in 'reg-names'.
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*
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* @dev: Pointer to a device
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_remap_addr_name(const struct udevice *dev, const char *name);
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/**
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* devfdt_map_physmem() - Read device address from reg property of the
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* device node and map the address into CPU address
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* space.
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*
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* @dev: Pointer to device
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* @size: size of the memory to map
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*
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* Return: mapped address, or NULL if the device does not have reg property.
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*/
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void *devfdt_map_physmem(const struct udevice *dev, unsigned long size);
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/**
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* devfdt_get_addr_index() - Get the indexed reg property of a device
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*
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* @dev: Pointer to a device
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* Return: Address, or FDT_ADDR_T_NONE if there is no such property
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*/
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fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index);
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/**
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* devfdt_get_addr_index_ptr() - Return indexed pointer to the address of the
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* reg property of a device
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*
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* @dev: Pointer to a device
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_get_addr_index_ptr(const struct udevice *dev, int index);
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/**
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* devfdt_get_addr_size_index() - Get the indexed reg property of a device
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*
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* Returns the address and size specified in the 'reg' property of a device.
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*
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* @dev: Pointer to a device
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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* @size: Pointer to size variable - this function returns the size
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* specified in the 'reg' property here
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*
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* Return: Address, or FDT_ADDR_T_NONE if there is no such property
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*/
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fdt_addr_t devfdt_get_addr_size_index(const struct udevice *dev, int index,
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fdt_size_t *size);
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/**
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* devfdt_get_addr_size_index_ptr() - Return indexed pointer to the address of the
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* reg property of a device
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*
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* @dev: Pointer to a device
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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* @size: Pointer to size variable - this function returns the size
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* specified in the 'reg' property here
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_get_addr_size_index_ptr(const struct udevice *dev, int index,
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fdt_size_t *size);
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/**
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* devfdt_get_addr_name() - Get the reg property of a device, indexed by name
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*
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* @dev: Pointer to a device
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @name
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* indicates the value to search for in 'reg-names'.
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*
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* Return: Address, or FDT_ADDR_T_NONE if there is no such property
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*/
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fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name);
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/**
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* devfdt_get_addr_name_ptr() - Get the reg property of a device as a pointer,
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* indexed by name
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*
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* @dev: Pointer to a device
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @name
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* indicates the value to search for in 'reg-names'.
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_get_addr_name_ptr(const struct udevice *dev, const char *name);
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/**
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* devfdt_get_addr_size_name() - Get the reg property and its size for a device,
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* indexed by name
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*
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* Returns the address and size specified in the 'reg' property of a device.
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*
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* @dev: Pointer to a device
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @name
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* indicates the value to search for in 'reg-names'.
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* @size: Pointer to size variable - this function returns the size
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* specified in the 'reg' property here
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*
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* Return: Address, or FDT_ADDR_T_NONE if there is no such property
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*/
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fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
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const char *name, fdt_size_t *size);
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/**
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* devfdt_get_addr_size_name_ptr() - Get the reg property for a device as a
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* pointer, indexed by name
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*
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* Returns the address and size specified in the 'reg' property of a device.
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*
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* @dev: Pointer to a device
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @name
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* indicates the value to search for in 'reg-names'.
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* @size: Pointer to size variable - this function returns the size
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* specified in the 'reg' property here
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*
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* Return: Pointer to addr, or NULL if there is no such property
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*/
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void *devfdt_get_addr_size_name_ptr(const struct udevice *dev,
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const char *name, fdt_size_t *size);
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/**
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* devfdt_get_addr_pci() - Read an address and handle PCI address translation
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*
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* @dev: Device to read from
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* @sizep: If non-NULL, returns size of address space
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* Return: address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t devfdt_get_addr_pci(const struct udevice *dev, fdt_size_t *sizep);
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#endif
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