sdrc.h
1.89 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
#ifndef __ARCH_ARM_MACH_OMAP2_SDRC_H
#define __ARCH_ARM_MACH_OMAP2_SDRC_H
/*
* OMAP2 SDRC register definitions
*
* Copyright (C) 2007 Texas Instruments, Inc.
* Copyright (C) 2007 Nokia Corporation
*
* Written by Paul Walmsley
*
* 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.
*/
#undef DEBUG
#include <plat/sdrc.h>
#ifndef __ASSEMBLER__
#include <linux/io.h>
extern void __iomem *omap2_sdrc_base;
extern void __iomem *omap2_sms_base;
#define OMAP_SDRC_REGADDR(reg) (omap2_sdrc_base + (reg))
#define OMAP_SMS_REGADDR(reg) (omap2_sms_base + (reg))
/* SDRC global register get/set */
static inline void sdrc_write_reg(u32 val, u16 reg)
{
__raw_writel(val, OMAP_SDRC_REGADDR(reg));
}
static inline u32 sdrc_read_reg(u16 reg)
{
return __raw_readl(OMAP_SDRC_REGADDR(reg));
}
/* SMS global register get/set */
static inline void sms_write_reg(u32 val, u16 reg)
{
__raw_writel(val, OMAP_SMS_REGADDR(reg));
}
static inline u32 sms_read_reg(u16 reg)
{
return __raw_readl(OMAP_SMS_REGADDR(reg));
}
#else
#define OMAP242X_SDRC_REGADDR(reg) \
OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg))
#define OMAP243X_SDRC_REGADDR(reg) \
OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))
#define OMAP34XX_SDRC_REGADDR(reg) \
OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg))
#endif /* __ASSEMBLER__ */
/* Minimum frequency that the SDRC DLL can lock at */
#define MIN_SDRC_DLL_LOCK_FREQ 83000000
/* Scale factor for fixed-point arith in omap3_core_dpll_m2_set_rate() */
#define SDRC_MPURATE_SCALE 8
/* 2^SDRC_MPURATE_BASE_SHIFT: MPU MHz that SDRC_MPURATE_LOOPS is defined for */
#define SDRC_MPURATE_BASE_SHIFT 9
/*
* SDRC_MPURATE_LOOPS: Number of MPU loops to execute at
* 2^MPURATE_BASE_SHIFT MHz for SDRC to stabilize
*/
#define SDRC_MPURATE_LOOPS 96
#endif