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Linux/arch/arm/mach-omap2/sdrc.h

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  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 <mach/sdrc.h>
 19 
 20 #ifndef __ASSEMBLER__
 21 extern void __iomem *omap2_sdrc_base;
 22 extern void __iomem *omap2_sms_base;
 23 
 24 #define OMAP_SDRC_REGADDR(reg)                  (omap2_sdrc_base + (reg))
 25 #define OMAP_SMS_REGADDR(reg)                   (omap2_sms_base + (reg))
 26 
 27 /* SDRC global register get/set */
 28 
 29 static inline void sdrc_write_reg(u32 val, u16 reg)
 30 {
 31         __raw_writel(val, OMAP_SDRC_REGADDR(reg));
 32 }
 33 
 34 static inline u32 sdrc_read_reg(u16 reg)
 35 {
 36         return __raw_readl(OMAP_SDRC_REGADDR(reg));
 37 }
 38 
 39 /* SMS global register get/set */
 40 
 41 static inline void sms_write_reg(u32 val, u16 reg)
 42 {
 43         __raw_writel(val, OMAP_SMS_REGADDR(reg));
 44 }
 45 
 46 static inline u32 sms_read_reg(u16 reg)
 47 {
 48         return __raw_readl(OMAP_SMS_REGADDR(reg));
 49 }
 50 #else
 51 #define OMAP242X_SDRC_REGADDR(reg)      OMAP2_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg))
 52 #define OMAP243X_SDRC_REGADDR(reg)      OMAP2_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))
 53 #define OMAP34XX_SDRC_REGADDR(reg)      OMAP2_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg))
 54 #endif  /* __ASSEMBLER__ */
 55 
 56 #endif
 57 

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