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 #include <linux/types.h>
11 
12 struct udevice;
13 
14 struct ram_info {
15 	phys_addr_t base;
16 	size_t size;
17 };
18 
19 struct ram_ops {
20 	/**
21 	 * get_info() - Get basic memory info
22 	 *
23 	 * @dev:	Device to check (UCLASS_RAM)
24 	 * @info:	Place to put info
25 	 * @return 0 if OK, -ve on error
26 	 */
27 	int (*get_info)(struct udevice *dev, struct ram_info *info);
28 };
29 
30 #define ram_get_ops(dev)        ((struct ram_ops *)(dev)->driver->ops)
31 
32 /**
33  * ram_get_info() - Get information about a RAM device
34  *
35  * @dev:	Device to check (UCLASS_RAM)
36  * @info:	Returns RAM info
37  * Return: 0 if OK, -ve on error
38  */
39 int ram_get_info(struct udevice *dev, struct ram_info *info);
40 
41 #endif
42