mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-28 04:48:52 +09:00
![Simon Glass](/assets/img/avatar_default.png)
At present PCI address transaction is not supported so drivers must manually read the correct BAR after reading the device tree info. The ns16550 has a suitable implementation, so move this code into the core DM support. Note that there is no live-tree equivalent at present. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: correct the unclear comments in test.dts] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
150 lines
4.4 KiB
C
150 lines
4.4 KiB
C
/* 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(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(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(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(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(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(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(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(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(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(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(struct udevice *dev);
|
|
|
|
#endif
|