1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright (c) 2015 Google, Inc
4  * Written by Simon Glass <sjg@chromium.org>
5  */
6 
7 #ifndef __RAM_H
8 #define __RAM_H
9 
10 struct udevice;
11 
12 struct ram_info {
13 	phys_addr_t base;
14 	size_t size;
15 };
16 
17 struct ram_ops {
18 	/**
19 	 * get_info() - Get basic memory info
20 	 *
21 	 * @dev:	Device to check (UCLASS_RAM)
22 	 * @info:	Place to put info
23 	 * @return 0 if OK, -ve on error
24 	 */
25 	int (*get_info)(struct udevice *dev, struct ram_info *info);
26 };
27 
28 #define ram_get_ops(dev)        ((struct ram_ops *)(dev)->driver->ops)
29 
30 /**
31  * ram_get_info() - Get information about a RAM device
32  *
33  * @dev:	Device to check (UCLASS_RAM)
34  * @info:	Returns RAM info
35  * @return 0 if OK, -ve on error
36  */
37 int ram_get_info(struct udevice *dev, struct ram_info *info);
38 
39 #endif
40