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
141
142
143
144
145
146
147
148
|
/***************************************************************************/
/*
* 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/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfwdebug.h>
/***************************************************************************/
/*
* Some platforms need software versions of the GPIO data registers.
*/
unsigned short ppdata;
unsigned char ledbank = 0xff;
/***************************************************************************/
static struct mcf_platform_uart m5307_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = 73,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = 74,
},
{ },
};
static struct platform_device m5307_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m5307_uart_platform,
};
static struct platform_device *m5307_devices[] __initdata = {
&m5307_uart,
};
/***************************************************************************/
static void __init m5307_uart_init_line(int line, int irq)
{
if (line == 0) {
writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR);
mcf_mapirq2imr(irq, MCFINTC_UART0);
} else if (line == 1) {
writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR);
mcf_mapirq2imr(irq, MCFINTC_UART1);
}
}
static void __init m5307_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m5307_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m5307_uart_init_line(line, m5307_uart_platform[line].irq);
}
/***************************************************************************/
static void __init m5307_timers_init(void)
{
/* Timer1 is always used as system timer */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3,
MCF_MBAR + MCFSIM_TIMER1ICR);
mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1);
#ifdef CONFIG_HIGHPROFILE
/* Timer2 is to be used as a high speed profile timer */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3,
MCF_MBAR + MCFSIM_TIMER2ICR);
mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2);
#endif
}
/***************************************************************************/
void m5307_cpu_reset(void)
{
local_irq_disable();
/* Set watchdog to soft reset, and enabled */
__raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR);
for (;;)
/* wait for watchdog to timeout */;
}
/***************************************************************************/
void __init config_BSP(char *commandp, int size)
{
#if defined(CONFIG_NETtel) || \
defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA)
/* Copy command line from FLASH to local buffer... */
memcpy(commandp, (char *) 0xf0004000, size);
commandp[size-1] = 0;
#endif
mach_reset = m5307_cpu_reset;
mach_sched_init = hw_timer_init;
m5307_timers_init();
m5307_uarts_init();
/* Only support the external interrupts on their primary level */
mcf_mapirq2imr(25, MCFINTC_EINT1);
mcf_mapirq2imr(27, MCFINTC_EINT3);
mcf_mapirq2imr(29, MCFINTC_EINT5);
mcf_mapirq2imr(31, MCFINTC_EINT7);
#ifdef CONFIG_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
}
/***************************************************************************/
static int __init init_BSP(void)
{
platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
|
