aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/boards/board-apsh4ad0a.c
blob: 92eac3a9918713a255cc742cde86a6a228bfc336 (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
/*
 * ALPHAPROJECT AP-SH4AD-0A Support.
 *
 * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
 * Copyright (C) 2010  Matt Fleming
 * Copyright (C) 2010  Paul Mundt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/smsc911x.h>
#include <linux/irq.h>
#include <linux/clk.h>
#include <asm/machvec.h>
#include <asm/sizes.h>

/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
	REGULATOR_SUPPLY("vddvario", "smsc911x"),
	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
};

static struct resource smsc911x_resources[] = {
	[0] = {
		.name		= "smsc911x-memory",
		.start		= 0xA4000000,
		.end		= 0xA4000000 + SZ_256 - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.name		= "smsc911x-irq",
		.start		= evt2irq(0x200),
		.end		= evt2irq(0x200),
		.flags		= IORESOURCE_IRQ,
	},
};

static struct smsc911x_platform_config smsc911x_config = {
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
	.flags		= SMSC911X_USE_16BIT,
	.phy_interface	= PHY_INTERFACE_MODE_MII,
};

static struct platform_device smsc911x_device = {
	.name		= "smsc911x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smsc911x_resources),
	.resource	= smsc911x_resources,
	.dev = {
		.platform_data = &smsc911x_config,
	},
};

static struct platform_device *apsh4ad0a_devices[] __initdata = {
	&smsc911x_device,
};

static int __init apsh4ad0a_devices_setup(void)
{
	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));

	return platform_add_devices(apsh4ad0a_devices,
				    ARRAY_SIZE(apsh4ad0a_devices));
}
device_initcall(apsh4ad0a_devices_setup);

static int apsh4ad0a_mode_pins(void)
{
	int value = 0;

	/* These are the factory default settings of SW1 and SW2.
	 * If you change these dip switches then you will need to
	 * adjust the values below as well.
	 */
	value |=  MODE_PIN0;  /* Clock Mode 3 */
	value |=  MODE_PIN1;
	value &= ~MODE_PIN2;
	value &= ~MODE_PIN3;
	value &= ~MODE_PIN4;  /* 16-bit Area0 bus width  */
	value |=  MODE_PIN5;
	value |=  MODE_PIN6;
	value |=  MODE_PIN7;  /* Normal mode */
	value |=  MODE_PIN8;  /* Little Endian */
	value |=  MODE_PIN9;  /* Crystal resonator */
	value &= ~MODE_PIN10; /* 29-bit address mode */
	value &= ~MODE_PIN11; /* PCI-E Root port */
	value &= ~MODE_PIN12; /* 4 lane + 1 lane */
	value |=  MODE_PIN13; /* AUD Enable */
	value &= ~MODE_PIN14; /* Normal Operation */

	return value;
}

static int apsh4ad0a_clk_init(void)
{
	struct clk *clk;
	int ret;

	clk = clk_get(NULL, "extal");
	if (IS_ERR(clk))
		return PTR_ERR(clk);
	ret = clk_set_rate(clk, 33333000);
	clk_put(clk);

	return ret;
}

/* Initialize the board */
static void __init apsh4ad0a_setup(char **cmdline_p)
{
	pr_info("Alpha Project AP-SH4AD-0A support:\n");
}

static void __init apsh4ad0a_init_irq(void)
{
	plat_irq_setup_pins(IRQ_MODE_IRQ3210);
}

/*
 * The Machine Vector
 */
static struct sh_machine_vector mv_apsh4ad0a __initmv = {
	.mv_name		= "AP-SH4AD-0A",
	.mv_setup		= apsh4ad0a_setup,
	.mv_mode_pins		= apsh4ad0a_mode_pins,
	.mv_clk_init		= apsh4ad0a_clk_init,
	.mv_init_irq		= apsh4ad0a_init_irq,
};