| Tony Lindgren | b824efa | 2006-04-02 17:46:20 +0100 | [diff] [blame] | 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 | |
| 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 */ |
| 29 | }; |
| 30 | |
| 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); |