u-boot/include/ram.h
Simon Glass 6c51df6859 dm: Add support for RAM drivers
Add support for a driver which sets up DRAM and can return information about
the amount of RAM available. This is a first step towards moving RAM init
to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21 17:39:27 -06:00

38 lines
759 B
C

/*
* Copyright (c) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __RAM_H
#define __RAM_H
struct ram_info {
phys_addr_t base;
size_t size;
};
struct ram_ops {
/**
* get_info() - Get basic memory info
*
* @dev: Device to check (UCLASS_RAM)
* @info: Place to put info
* @return 0 if OK, -ve on error
*/
int (*get_info)(struct udevice *dev, struct ram_info *info);
};
#define ram_get_ops(dev) ((struct ram_ops *)(dev)->driver->ops)
/**
* ram_get_info() - Get information about a RAM device
*
* @dev: Device to check (UCLASS_RAM)
* @info: Returns RAM info
* @return 0 if OK, -ve on error
*/
int ram_get_info(struct udevice *dev, struct ram_info *info);
#endif