35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/*
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* linux/arch/arm/mach-omap2/memory.h
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*
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* Interface for memory timing related functions for OMAP24XX
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*
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* Copyright (C) 2005 Texas Instruments Inc.
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* Richard Woodruff <r-woodruff2@ti.com>
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*
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* Copyright (C) 2005 Nokia Corporation
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* Tony Lindgren <tony@atomide.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/* Memory timings */
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#define M_DDR 1
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#define M_LOCK_CTRL (1 << 2)
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#define M_UNLOCK 0
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#define M_LOCK 1
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struct memory_timings {
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u32 m_type; /* ddr = 1, sdr = 0 */
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u32 dll_mode; /* use lock mode = 1, unlock mode = 0 */
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u32 slow_dll_ctrl; /* unlock mode, dll value for slow speed */
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u32 fast_dll_ctrl; /* unlock mode, dll value for fast speed */
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u32 base_cs; /* base chip select to use for calculations */
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};
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extern void omap2_init_memory_params(u32 force_lock_to_unlock_mode);
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extern u32 omap2_memory_get_slow_dll_ctrl(void);
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extern u32 omap2_memory_get_fast_dll_ctrl(void);
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extern u32 omap2_memory_get_type(void);
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