summaryrefslogtreecommitdiffstats
path: root/arch/m68knommu/platform/5307/config.c
blob: 44803bf70a6e0988868f3bd6a8815e1a35e2312c (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
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
149
150
151
152
153
154
155
156
157
158
159
160
/***************************************************************************/

/*
 *	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/interrupt.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>

/***************************************************************************/

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;

/***************************************************************************/

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_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1);
	} else if (line == 1) {
		writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
		writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR);
		mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2);
	}
}

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);
}

/***************************************************************************/

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);
	}
}

/***************************************************************************/

void __init config_BSP(char *commandp, int size)
{
	mcf_setimr(MCFSIM_IMR_MASKALL);

#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;
	/* Different timer setup - to prevent device clash */
	mcf_timervector = 30;
	mcf_profilevector = 31;
	mcf_timerlevel = 6;
#endif

	mach_reset = coldfire_reset;

#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)
{
	m5307_uarts_init();
	platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices));
	return 0;
}

arch_initcall(init_BSP);

/***************************************************************************/
OpenPOWER on IntegriCloud