1/*
2 * linux/arch/arm/mach-omap2/memory.h
3 *
4 * Interface for memory timing related functions for OMAP24XX
5 *
6 * Copyright (C) 2005 Texas Instruments Inc.
7 * Richard Woodruff <r-woodruff2@ti.com>
8 *
9 * Copyright (C) 2005 Nokia Corporation
10 * Tony Lindgren <tony@atomide.com>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17/* Memory timings */
18#define M_DDR		1
19#define M_LOCK_CTRL	(1 << 2)
20#define M_UNLOCK	0
21#define M_LOCK		1
22
23struct memory_timings {
24	u32 m_type;		/* ddr = 1, sdr = 0 */
25	u32 dll_mode;		/* use lock mode = 1, unlock mode = 0 */
26	u32 slow_dll_ctrl;	/* unlock mode, dll value for slow speed */
27	u32 fast_dll_ctrl;	/* unlock mode, dll value for fast speed */
28	u32 base_cs;		/* base chip select to use for calculations */
29};
30
31extern void omap2_init_memory_params(u32 force_lock_to_unlock_mode);
32extern u32 omap2_memory_get_slow_dll_ctrl(void);
33extern u32 omap2_memory_get_fast_dll_ctrl(void);
34extern u32 omap2_memory_get_type(void);
35