/* * linux/arch/arm/mach-omap2/memory.h * * Interface for memory timing related functions for OMAP24XX * * Copyright (C) 2005 Texas Instruments Inc. * Richard Woodruff <r-woodruff2@ti.com> * * Copyright (C) 2005 Nokia Corporation * Tony Lindgren <tony@atomide.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ /* Memory timings */ #define M_DDR 1 #define M_LOCK_CTRL (1 << 2) #define M_UNLOCK 0 #define M_LOCK 1 struct memory_timings { u32 m_type; /* ddr = 1, sdr = 0 */ u32 dll_mode; /* use lock mode = 1, unlock mode = 0 */ u32 slow_dll_ctrl; /* unlock mode, dll value for slow speed */ u32 fast_dll_ctrl; /* unlock mode, dll value for fast speed */ u32 base_cs; /* base chip select to use for calculations */ }; extern void omap2_init_memory_params(u32 force_lock_to_unlock_mode); extern u32 omap2_memory_get_slow_dll_ctrl(void); extern u32 omap2_memory_get_fast_dll_ctrl(void); extern u32 omap2_memory_get_type(void); u32 omap2_dll_force_needed(void); u32 omap2_reprogram_sdrc(u32 level, u32 force);