mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-08-08 16:26:58 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2017, 2018
|
|
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
|
|
*/
|
|
|
|
#ifndef _AXI_H_
|
|
#define _AXI_H_
|
|
|
|
struct udevice;
|
|
|
|
/**
|
|
* enum axi_size_t - Determine size of AXI transfer
|
|
* @AXI_SIZE_8: AXI sransfer is 8-bit wide
|
|
* @AXI_SIZE_16: AXI sransfer is 16-bit wide
|
|
* @AXI_SIZE_32: AXI sransfer is 32-bit wide
|
|
*/
|
|
enum axi_size_t {
|
|
AXI_SIZE_8,
|
|
AXI_SIZE_16,
|
|
AXI_SIZE_32,
|
|
};
|
|
|
|
struct axi_ops {
|
|
/**
|
|
* read() - Read a single value from a specified address on a AXI bus
|
|
* @dev: AXI bus to read from.
|
|
* @address: The address to read from.
|
|
* @data: Pointer to a variable that takes the data value read
|
|
* from the address on the AXI bus.
|
|
* @size: The size of the data to be read.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int (*read)(struct udevice *dev, ulong address, void *data,
|
|
enum axi_size_t size);
|
|
|
|
/**
|
|
* write() - Write a single value to a specified address on a AXI bus
|
|
* @dev: AXI bus to write to.
|
|
* @address: The address to write to.
|
|
* @data: Pointer to the data value to be written to the address
|
|
* on the AXI bus.
|
|
* @size: The size of the data to write.
|
|
*
|
|
* Return 0 if OK, -ve on error.
|
|
*/
|
|
int (*write)(struct udevice *dev, ulong address, void *data,
|
|
enum axi_size_t size);
|
|
};
|
|
|
|
#define axi_get_ops(dev) ((struct axi_ops *)(dev)->driver->ops)
|
|
|
|
/**
|
|
* axi_read() - Read a single value from a specified address on a AXI bus
|
|
* @dev: AXI bus to read from.
|
|
* @address: The address to read from.
|
|
* @data: Pointer to a variable that takes the data value read from the
|
|
* address on the AXI bus.
|
|
* @size: The size of the data to write.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int axi_read(struct udevice *dev, ulong address, void *data,
|
|
enum axi_size_t size);
|
|
|
|
/**
|
|
* axi_write() - Write a single value to a specified address on a AXI bus
|
|
* @dev: AXI bus to write to.
|
|
* @address: The address to write to.
|
|
* @data: Pointer to the data value to be written to the address on the
|
|
* AXI bus.
|
|
* @size: The size of the data to write.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int axi_write(struct udevice *dev, ulong address, void *data,
|
|
enum axi_size_t size);
|
|
|
|
struct axi_emul_ops {
|
|
/**
|
|
* read() - Read a single value from a specified address on a AXI bus
|
|
* @dev: AXI bus to read from.
|
|
* @address: The address to read from.
|
|
* @data: Pointer to a variable that takes the data value read
|
|
* from the address on the AXI bus.
|
|
* @size: The size of the data to be read.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int (*read)(struct udevice *dev, ulong address, void *data,
|
|
enum axi_size_t size);
|
|
|
|
/**
|
|
* write() - Write a single value to a specified address on a AXI bus
|
|
* @dev: AXI bus to write to.
|
|
* @address: The address to write to.
|
|
* @data: Pointer to the data value to be written to the address
|
|
* on the AXI bus.
|
|
* @size: The size of the data to write.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int (*write)(struct udevice *dev, ulong address, void *data,
|
|
enum axi_size_t size);
|
|
|
|
/**
|
|
* get_store() - Get address of internal storage of a emulated AXI
|
|
* device
|
|
* @dev: Emulated AXI device to get the pointer of the internal
|
|
* storage for.
|
|
* @storep: Pointer to the internal storage of the emulated AXI
|
|
* device.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int (*get_store)(struct udevice *dev, u8 **storep);
|
|
};
|
|
|
|
#endif
|