blob: fac759584875a63e6b3209af10749469a2fd4408 (
plain)
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
78
79
80
81
82
83
84
85
86
87
88
|
/*
* linux/arch/m32r/mm/cache.c
*
* Copyright (C) 2002-2005 Hirokazu Takata, Hayato Fujiwara
*/
#include <asm/pgtable.h>
#undef MCCR
#if defined(CONFIG_CHIP_XNUX2) || defined(CONFIG_CHIP_M32700) \
|| defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_OPSP)
/* Cache Control Register */
#define MCCR ((volatile unsigned long*)0xfffffffc)
#define MCCR_CC (1UL << 7) /* Cache mode modify bit */
#define MCCR_IIV (1UL << 6) /* I-cache invalidate */
#define MCCR_DIV (1UL << 5) /* D-cache invalidate */
#define MCCR_DCB (1UL << 4) /* D-cache copy back */
#define MCCR_ICM (1UL << 1) /* I-cache mode [0:off,1:on] */
#define MCCR_DCM (1UL << 0) /* D-cache mode [0:off,1:on] */
#define MCCR_ICACHE_INV (MCCR_CC|MCCR_IIV)
#define MCCR_DCACHE_CB (MCCR_CC|MCCR_DCB)
#define MCCR_DCACHE_CBINV (MCCR_CC|MCCR_DIV|MCCR_DCB)
#define CHECK_MCCR(mccr) (mccr = *MCCR)
#elif defined(CONFIG_CHIP_M32102)
#define MCCR ((volatile unsigned char*)0xfffffffe)
#define MCCR_IIV (1UL << 0) /* I-cache invalidate */
#define MCCR_ICACHE_INV MCCR_IIV
#elif defined(CONFIG_CHIP_M32104)
#define MCCR ((volatile unsigned short*)0xfffffffe)
#define MCCR_IIV (1UL << 8) /* I-cache invalidate */
#define MCCR_DIV (1UL << 9) /* D-cache invalidate */
#define MCCR_DCB (1UL << 10) /* D-cache copy back */
#define MCCR_ICM (1UL << 0) /* I-cache mode [0:off,1:on] */
#define MCCR_DCM (1UL << 1) /* D-cache mode [0:off,1:on] */
#define MCCR_ICACHE_INV MCCR_IIV
#define MCCR_DCACHE_CB MCCR_DCB
#define MCCR_DCACHE_CBINV (MCCR_DIV|MCCR_DCB)
#endif
#ifndef MCCR
#error Unknown cache type.
#endif
/* Copy back and invalidate D-cache and invalidate I-cache all */
void _flush_cache_all(void)
{
#if defined(CONFIG_CHIP_M32102)
unsigned char mccr;
*MCCR = MCCR_ICACHE_INV;
#elif defined(CONFIG_CHIP_M32104)
unsigned short mccr;
/* Copyback and invalidate D-cache */
/* Invalidate I-cache */
*MCCR |= (MCCR_ICACHE_INV | MCCR_DCACHE_CBINV);
#else
unsigned long mccr;
/* Copyback and invalidate D-cache */
/* Invalidate I-cache */
*MCCR = MCCR_ICACHE_INV | MCCR_DCACHE_CBINV;
#endif
while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */
}
/* Copy back D-cache and invalidate I-cache all */
void _flush_cache_copyback_all(void)
{
#if defined(CONFIG_CHIP_M32102)
unsigned char mccr;
*MCCR = MCCR_ICACHE_INV;
#elif defined(CONFIG_CHIP_M32104)
unsigned short mccr;
/* Copyback and invalidate D-cache */
/* Invalidate I-cache */
*MCCR |= (MCCR_ICACHE_INV | MCCR_DCACHE_CB);
#else
unsigned long mccr;
/* Copyback D-cache */
/* Invalidate I-cache */
*MCCR = MCCR_ICACHE_INV | MCCR_DCACHE_CB;
#endif
while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */
}
|
