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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/***************************************************************************/
/*
* linux/arch/m68knommu/platform/5307/config.c
*
* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 2000, Lineo (www.lineo.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
#include <asm/mcfwdebug.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
extern unsigned int mcf_timervector;
extern unsigned int mcf_profilevector;
extern unsigned int mcf_timerlevel;
/***************************************************************************/
/*
* Some platforms need software versions of the GPIO data registers.
*/
unsigned short ppdata;
unsigned char ledbank = 0xff;
/***************************************************************************/
/*
* DMA channel base address table.
*/
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
MCF_MBAR + MCFDMA_BASE0,
MCF_MBAR + MCFDMA_BASE1,
MCF_MBAR + MCFDMA_BASE2,
MCF_MBAR + MCFDMA_BASE3,
};
unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
/***************************************************************************/
void mcf_autovector(unsigned int vec)
{
volatile unsigned char *mbar;
if ((vec >= 25) && (vec <= 31)) {
mbar = (volatile unsigned char *) MCF_MBAR;
vec = 0x1 << (vec - 24);
*(mbar + MCFSIM_AVR) |= vec;
mcf_setimr(mcf_getimr() & ~vec);
}
}
/***************************************************************************/
void mcf_settimericr(unsigned int timer, unsigned int level)
{
volatile unsigned char *icrp;
unsigned int icr, imr;
if (timer <= 2) {
switch (timer) {
case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
}
icrp = (volatile unsigned char *) (MCF_MBAR + icr);
*icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
mcf_setimr(mcf_getimr() & ~imr);
}
}
/***************************************************************************/
int mcf_timerirqpending(int timer)
{
unsigned int imr = 0;
switch (timer) {
case 1: imr = MCFSIM_IMR_TIMER1; break;
case 2: imr = MCFSIM_IMR_TIMER2; break;
default: break;
}
return (mcf_getipr() & imr);
}
/***************************************************************************/
void config_BSP(char *commandp, int size)
{
mcf_setimr(MCFSIM_IMR_MASKALL);
#if defined(CONFIG_NETtel) || defined(CONFIG_eLIA) || \
defined(CONFIG_DISKtel) || defined(CONFIG_SECUREEDGEMP3) || \
defined(CONFIG_CLEOPATRA)
/* Copy command line from FLASH to local buffer... */
memcpy(commandp, (char *) 0xf0004000, size);
commandp[size-1] = 0;
/* Different timer setup - to prevent device clash */
mcf_timervector = 30;
mcf_profilevector = 31;
mcf_timerlevel = 6;
#endif
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
#ifdef MCF_BDM_DISABLE
/*
* Disable the BDM clocking. This also turns off most of the rest of
* the BDM device. This is good for EMC reasons. This option is not
* incompatible with the memory protection option.
*/
wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK);
#endif
}
/***************************************************************************/
|
