defxx: Use __maybe_unused rather than a local hack
[wrt350n-kernel.git] / arch / arm / mach-omap2 / memory.h
blobd212eea83a051b05e020e8a92d60350a32a457e8
1 /*
2 * linux/arch/arm/mach-omap2/memory.h
4 * Interface for memory timing related functions for OMAP24XX
6 * Copyright (C) 2005 Texas Instruments Inc.
7 * Richard Woodruff <r-woodruff2@ti.com>
9 * Copyright (C) 2005 Nokia Corporation
10 * Tony Lindgren <tony@atomide.com>
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.
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
23 struct 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 */
31 extern void omap2_init_memory_params(u32 force_lock_to_unlock_mode);
32 extern u32 omap2_memory_get_slow_dll_ctrl(void);
33 extern u32 omap2_memory_get_fast_dll_ctrl(void);
34 extern u32 omap2_memory_get_type(void);