1/*
2 * linux/arch/arm/mach-omap1/devices.c
3 *
4 * OMAP1 platform device setup/initialization
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16
17#include <asm/hardware.h>
18#include <asm/io.h>
19#include <asm/mach-types.h>
20#include <asm/mach/map.h>
21
22#include <asm/arch/tc.h>
23#include <asm/arch/board.h>
24#include <asm/arch/mux.h>
25#include <asm/arch/gpio.h>
26
27/*-------------------------------------------------------------------------*/
28
29#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
30
31#define	OMAP_RTC_BASE		0xfffb4800
32
33static struct resource rtc_resources[] = {
34	{
35		.start		= OMAP_RTC_BASE,
36		.end		= OMAP_RTC_BASE + 0x5f,
37		.flags		= IORESOURCE_MEM,
38	},
39	{
40		.start		= INT_RTC_TIMER,
41		.flags		= IORESOURCE_IRQ,
42	},
43	{
44		.start		= INT_RTC_ALARM,
45		.flags		= IORESOURCE_IRQ,
46	},
47};
48
49static struct platform_device omap_rtc_device = {
50	.name           = "omap_rtc",
51	.id             = -1,
52	.num_resources	= ARRAY_SIZE(rtc_resources),
53	.resource	= rtc_resources,
54};
55
56static void omap_init_rtc(void)
57{
58	(void) platform_device_register(&omap_rtc_device);
59}
60#else
61static inline void omap_init_rtc(void) {}
62#endif
63
64#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
65
66#if defined(CONFIG_ARCH_OMAP15XX)
67#  define OMAP1_MBOX_SIZE	0x23
68#  define INT_DSP_MAILBOX1	INT_1510_DSP_MAILBOX1
69#elif defined(CONFIG_ARCH_OMAP16XX)
70#  define OMAP1_MBOX_SIZE	0x2f
71#  define INT_DSP_MAILBOX1	INT_1610_DSP_MAILBOX1
72#endif
73
74#define OMAP1_MBOX_BASE		IO_ADDRESS(OMAP16XX_MAILBOX_BASE)
75
76static struct resource mbox_resources[] = {
77	{
78		.start		= OMAP1_MBOX_BASE,
79		.end		= OMAP1_MBOX_BASE + OMAP1_MBOX_SIZE,
80		.flags		= IORESOURCE_MEM,
81	},
82	{
83		.start		= INT_DSP_MAILBOX1,
84		.flags		= IORESOURCE_IRQ,
85	},
86};
87
88static struct platform_device mbox_device = {
89	.name		= "mailbox",
90	.id		= -1,
91	.num_resources	= ARRAY_SIZE(mbox_resources),
92	.resource	= mbox_resources,
93};
94
95static inline void omap_init_mbox(void)
96{
97	platform_device_register(&mbox_device);
98}
99#else
100static inline void omap_init_mbox(void) { }
101#endif
102
103#if defined(CONFIG_OMAP_STI)
104
105#define OMAP1_STI_BASE		IO_ADDRESS(0xfffea000)
106#define OMAP1_STI_CHANNEL_BASE	(OMAP1_STI_BASE + 0x400)
107
108static struct resource sti_resources[] = {
109	{
110		.start		= OMAP1_STI_BASE,
111		.end		= OMAP1_STI_BASE + SZ_1K - 1,
112		.flags		= IORESOURCE_MEM,
113	},
114	{
115		.start		= OMAP1_STI_CHANNEL_BASE,
116		.end		= OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
117		.flags		= IORESOURCE_MEM,
118	},
119	{
120		.start		= INT_1610_STI,
121		.flags		= IORESOURCE_IRQ,
122	}
123};
124
125static struct platform_device sti_device = {
126	.name		= "sti",
127	.id		= -1,
128	.num_resources	= ARRAY_SIZE(sti_resources),
129	.resource	= sti_resources,
130};
131
132static inline void omap_init_sti(void)
133{
134	platform_device_register(&sti_device);
135}
136#else
137static inline void omap_init_sti(void) {}
138#endif
139
140/*-------------------------------------------------------------------------*/
141
142/*
143 * This gets called after board-specific INIT_MACHINE, and initializes most
144 * on-chip peripherals accessible on this board (except for few like USB):
145 *
146 *  (a) Does any "standard config" pin muxing needed.  Board-specific
147 *	code will have muxed GPIO pins and done "nonstandard" setup;
148 *	that code could live in the boot loader.
149 *  (b) Populating board-specific platform_data with the data drivers
150 *	rely on to handle wiring variations.
151 *  (c) Creating platform devices as meaningful on this board and
152 *	with this kernel configuration.
153 *
154 * Claiming GPIOs, and setting their direction and initial values, is the
155 * responsibility of the device drivers.  So is responding to probe().
156 *
157 * Board-specific knowlege like creating devices or pin setup is to be
158 * kept out of drivers as much as possible.  In particular, pin setup
159 * may be handled by the boot loader, and drivers should expect it will
160 * normally have been done by the time they're probed.
161 */
162static int __init omap1_init_devices(void)
163{
164	/* please keep these calls, and their implementations above,
165	 * in alphabetical order so they're easier to sort through.
166	 */
167
168	omap_init_mbox();
169	omap_init_rtc();
170	omap_init_sti();
171
172	return 0;
173}
174arch_initcall(omap1_init_devices);
175