1#ifndef __ARCH_ARM_MACH_OMAP2_SDRC_H 2#define __ARCH_ARM_MACH_OMAP2_SDRC_H 3 4/* 5 * OMAP2 SDRC register definitions 6 * 7 * Copyright (C) 2007 Texas Instruments, Inc. 8 * Copyright (C) 2007 Nokia Corporation 9 * 10 * Written by Paul Walmsley 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#undef DEBUG 17 18#include <plat/sdrc.h> 19 20#ifndef __ASSEMBLER__ 21 22#include <linux/io.h> 23 24extern void __iomem *omap2_sdrc_base; 25extern void __iomem *omap2_sms_base; 26 27#define OMAP_SDRC_REGADDR(reg) (omap2_sdrc_base + (reg)) 28#define OMAP_SMS_REGADDR(reg) (omap2_sms_base + (reg)) 29 30/* SDRC global register get/set */ 31 32static inline void sdrc_write_reg(u32 val, u16 reg) 33{ 34 __raw_writel(val, OMAP_SDRC_REGADDR(reg)); 35} 36 37static inline u32 sdrc_read_reg(u16 reg) 38{ 39 return __raw_readl(OMAP_SDRC_REGADDR(reg)); 40} 41 42/* SMS global register get/set */ 43 44static inline void sms_write_reg(u32 val, u16 reg) 45{ 46 __raw_writel(val, OMAP_SMS_REGADDR(reg)); 47} 48 49static inline u32 sms_read_reg(u16 reg) 50{ 51 return __raw_readl(OMAP_SMS_REGADDR(reg)); 52} 53#else 54#define OMAP242X_SDRC_REGADDR(reg) \ 55 OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg)) 56#define OMAP243X_SDRC_REGADDR(reg) \ 57 OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg)) 58#define OMAP34XX_SDRC_REGADDR(reg) \ 59 OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg)) 60#endif /* __ASSEMBLER__ */ 61 62/* Minimum frequency that the SDRC DLL can lock at */ 63#define MIN_SDRC_DLL_LOCK_FREQ 83000000 64 65/* Scale factor for fixed-point arith in omap3_core_dpll_m2_set_rate() */ 66#define SDRC_MPURATE_SCALE 8 67 68/* 2^SDRC_MPURATE_BASE_SHIFT: MPU MHz that SDRC_MPURATE_LOOPS is defined for */ 69#define SDRC_MPURATE_BASE_SHIFT 9 70 71/* 72 * SDRC_MPURATE_LOOPS: Number of MPU loops to execute at 73 * 2^MPURATE_BASE_SHIFT MHz for SDRC to stabilize 74 */ 75#define SDRC_MPURATE_LOOPS 96 76 77 78#endif 79