summaryrefslogtreecommitdiff
path: root/arch/arm/mach-ep93xx/micro9.c
blob: 777cd2170f8a3fb60e74500cfee998bd760a9885 (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
/*
 *  linux/arch/arm/mach-ep93xx/micro9.c
 *
 * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
 *                    Manfred Gruber <m.gruber@tirol.com>
 * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
 *                    Hubert Feurstein <hubert.feurstein@contec.at>
 *
 * 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.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>

#include <mach/hardware.h>

#include <asm/hardware/vic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include "soc.h"

/*************************************************************************
 * Micro9 NOR Flash
 *
 * Micro9-High has up to 64MB of 32-bit flash on CS1
 * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
 * Micro9-Lite uses a separate MTD map driver for flash support
 * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
 *************************************************************************/
static unsigned int __init micro9_detect_bootwidth(void)
{
	u32 v;

	/* Detect the bus width of the external flash memory */
	v = __raw_readl(EP93XX_SYSCON_SYSCFG);
	if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
		return 4; /* 32-bit */
	else
		return 2; /* 16-bit */
}

static void __init micro9_register_flash(void)
{
	unsigned int width;

	if (machine_is_micro9())
		width = 4;
	else if (machine_is_micro9m() || machine_is_micro9s())
		width = micro9_detect_bootwidth();
	else
		width = 0;

	if (width)
		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
}


/*************************************************************************
 * Micro9 Ethernet
 *************************************************************************/
static struct ep93xx_eth_data __initdata micro9_eth_data = {
	.phy_id		= 0x1f,
};


static void __init micro9_init_machine(void)
{
	ep93xx_init_devices();
	ep93xx_register_eth(&micro9_eth_data, 1);
	micro9_register_flash();
}


#ifdef CONFIG_MACH_MICRO9H
MACHINE_START(MICRO9, "Contec Micro9-High")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.atag_offset	= 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.handle_irq	= vic_handle_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= micro9_init_machine,
	.init_late	= ep93xx_init_late,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_MICRO9M
MACHINE_START(MICRO9M, "Contec Micro9-Mid")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.atag_offset	= 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.handle_irq	= vic_handle_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= micro9_init_machine,
	.init_late	= ep93xx_init_late,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_MICRO9L
MACHINE_START(MICRO9L, "Contec Micro9-Lite")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.atag_offset	= 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.handle_irq	= vic_handle_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= micro9_init_machine,
	.init_late	= ep93xx_init_late,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_MICRO9S
MACHINE_START(MICRO9S, "Contec Micro9-Slim")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.atag_offset	= 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.handle_irq	= vic_handle_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= micro9_init_machine,
	.init_late	= ep93xx_init_late,
	.restart	= ep93xx_restart,
MACHINE_END
#endif