xref: /openbmc/linux/arch/arm/mach-omap2/sdrc.h (revision 22246614)
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 <asm/arch/sdrc.h>
19 
20 #ifndef __ASSEMBLER__
21 extern unsigned long omap2_sdrc_base;
22 extern unsigned long omap2_sms_base;
23 
24 #define OMAP_SDRC_REGADDR(reg)						\
25 		(void __iomem *)IO_ADDRESS(omap2_sdrc_base + (reg))
26 #define OMAP_SMS_REGADDR(reg)						\
27 		(void __iomem *)IO_ADDRESS(omap2_sms_base + (reg))
28 
29 /* SDRC global register get/set */
30 
31 static inline void sdrc_write_reg(u32 val, u16 reg)
32 {
33 	__raw_writel(val, OMAP_SDRC_REGADDR(reg));
34 }
35 
36 static inline u32 sdrc_read_reg(u16 reg)
37 {
38 	return __raw_readl(OMAP_SDRC_REGADDR(reg));
39 }
40 
41 /* SMS global register get/set */
42 
43 static inline void sms_write_reg(u32 val, u16 reg)
44 {
45 	__raw_writel(val, OMAP_SMS_REGADDR(reg));
46 }
47 
48 static inline u32 sms_read_reg(u16 reg)
49 {
50 	return __raw_readl(OMAP_SMS_REGADDR(reg));
51 }
52 #else
53 #define OMAP242X_SDRC_REGADDR(reg)	IO_ADDRESS(OMAP2420_SDRC_BASE + (reg))
54 #define OMAP243X_SDRC_REGADDR(reg)	IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))
55 #define OMAP34XX_SDRC_REGADDR(reg)	IO_ADDRESS(OMAP343X_SDRC_BASE + (reg))
56 #endif	/* __ASSEMBLER__ */
57 
58 #endif
59