1/*
2 * ALPHAPROJECT AP-SH4AD-0A Support.
3 *
4 * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
5 * Copyright (C) 2010  Matt Fleming
6 * Copyright (C) 2010  Paul Mundt
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License.  See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/io.h>
15#include <linux/regulator/fixed.h>
16#include <linux/regulator/machine.h>
17#include <linux/smsc911x.h>
18#include <linux/irq.h>
19#include <linux/clk.h>
20#include <asm/machvec.h>
21#include <asm/sizes.h>
22
23/* Dummy supplies, where voltage doesn't matter */
24static struct regulator_consumer_supply dummy_supplies[] = {
25	REGULATOR_SUPPLY("vddvario", "smsc911x"),
26	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
27};
28
29static struct resource smsc911x_resources[] = {
30	[0] = {
31		.name		= "smsc911x-memory",
32		.start		= 0xA4000000,
33		.end		= 0xA4000000 + SZ_256 - 1,
34		.flags		= IORESOURCE_MEM,
35	},
36	[1] = {
37		.name		= "smsc911x-irq",
38		.start		= evt2irq(0x200),
39		.end		= evt2irq(0x200),
40		.flags		= IORESOURCE_IRQ,
41	},
42};
43
44static struct smsc911x_platform_config smsc911x_config = {
45	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
46	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
47	.flags		= SMSC911X_USE_16BIT,
48	.phy_interface	= PHY_INTERFACE_MODE_MII,
49};
50
51static struct platform_device smsc911x_device = {
52	.name		= "smsc911x",
53	.id		= -1,
54	.num_resources	= ARRAY_SIZE(smsc911x_resources),
55	.resource	= smsc911x_resources,
56	.dev = {
57		.platform_data = &smsc911x_config,
58	},
59};
60
61static struct platform_device *apsh4ad0a_devices[] __initdata = {
62	&smsc911x_device,
63};
64
65static int __init apsh4ad0a_devices_setup(void)
66{
67	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
68
69	return platform_add_devices(apsh4ad0a_devices,
70				    ARRAY_SIZE(apsh4ad0a_devices));
71}
72device_initcall(apsh4ad0a_devices_setup);
73
74static int apsh4ad0a_mode_pins(void)
75{
76	int value = 0;
77
78	/* These are the factory default settings of SW1 and SW2.
79	 * If you change these dip switches then you will need to
80	 * adjust the values below as well.
81	 */
82	value |=  MODE_PIN0;  /* Clock Mode 3 */
83	value |=  MODE_PIN1;
84	value &= ~MODE_PIN2;
85	value &= ~MODE_PIN3;
86	value &= ~MODE_PIN4;  /* 16-bit Area0 bus width  */
87	value |=  MODE_PIN5;
88	value |=  MODE_PIN6;
89	value |=  MODE_PIN7;  /* Normal mode */
90	value |=  MODE_PIN8;  /* Little Endian */
91	value |=  MODE_PIN9;  /* Crystal resonator */
92	value &= ~MODE_PIN10; /* 29-bit address mode */
93	value &= ~MODE_PIN11; /* PCI-E Root port */
94	value &= ~MODE_PIN12; /* 4 lane + 1 lane */
95	value |=  MODE_PIN13; /* AUD Enable */
96	value &= ~MODE_PIN14; /* Normal Operation */
97
98	return value;
99}
100
101static int apsh4ad0a_clk_init(void)
102{
103	struct clk *clk;
104	int ret;
105
106	clk = clk_get(NULL, "extal");
107	if (IS_ERR(clk))
108		return PTR_ERR(clk);
109	ret = clk_set_rate(clk, 33333000);
110	clk_put(clk);
111
112	return ret;
113}
114
115/* Initialize the board */
116static void __init apsh4ad0a_setup(char **cmdline_p)
117{
118	pr_info("Alpha Project AP-SH4AD-0A support:\n");
119}
120
121static void __init apsh4ad0a_init_irq(void)
122{
123	plat_irq_setup_pins(IRQ_MODE_IRQ3210);
124}
125
126/*
127 * The Machine Vector
128 */
129static struct sh_machine_vector mv_apsh4ad0a __initmv = {
130	.mv_name		= "AP-SH4AD-0A",
131	.mv_setup		= apsh4ad0a_setup,
132	.mv_mode_pins		= apsh4ad0a_mode_pins,
133	.mv_clk_init		= apsh4ad0a_clk_init,
134	.mv_init_irq		= apsh4ad0a_init_irq,
135};
136