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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_OMAP_RTC) || defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
30
31 #define OMAP_RTC_BASE           0xfffb4800
32
33 static 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
49 static 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
56 static void omap_init_rtc(void)
57 {
58         (void) platform_device_register(&omap_rtc_device);
59 }
60 #else
61 static inline void omap_init_rtc(void) {}
62 #endif
63
64 #if defined(CONFIG_OMAP_STI)
65
66 #define OMAP1_STI_BASE          IO_ADDRESS(0xfffea000)
67 #define OMAP1_STI_CHANNEL_BASE  (OMAP1_STI_BASE + 0x400)
68
69 static struct resource sti_resources[] = {
70         {
71                 .start          = OMAP1_STI_BASE,
72                 .end            = OMAP1_STI_BASE + SZ_1K - 1,
73                 .flags          = IORESOURCE_MEM,
74         },
75         {
76                 .start          = OMAP1_STI_CHANNEL_BASE,
77                 .end            = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
78                 .flags          = IORESOURCE_MEM,
79         },
80         {
81                 .start          = INT_1610_STI,
82                 .flags          = IORESOURCE_IRQ,
83         }
84 };
85
86 static struct platform_device sti_device = {
87         .name           = "sti",
88         .id             = -1,
89         .num_resources  = ARRAY_SIZE(sti_resources),
90         .resource       = sti_resources,
91 };
92
93 static inline void omap_init_sti(void)
94 {
95         platform_device_register(&sti_device);
96 }
97 #else
98 static inline void omap_init_sti(void) {}
99 #endif
100
101 /*-------------------------------------------------------------------------*/
102
103 /*
104  * This gets called after board-specific INIT_MACHINE, and initializes most
105  * on-chip peripherals accessible on this board (except for few like USB):
106  *
107  *  (a) Does any "standard config" pin muxing needed.  Board-specific
108  *      code will have muxed GPIO pins and done "nonstandard" setup;
109  *      that code could live in the boot loader.
110  *  (b) Populating board-specific platform_data with the data drivers
111  *      rely on to handle wiring variations.
112  *  (c) Creating platform devices as meaningful on this board and
113  *      with this kernel configuration.
114  *
115  * Claiming GPIOs, and setting their direction and initial values, is the
116  * responsibility of the device drivers.  So is responding to probe().
117  *
118  * Board-specific knowlege like creating devices or pin setup is to be
119  * kept out of drivers as much as possible.  In particular, pin setup
120  * may be handled by the boot loader, and drivers should expect it will
121  * normally have been done by the time they're probed.
122  */
123 static int __init omap1_init_devices(void)
124 {
125         /* please keep these calls, and their implementations above,
126          * in alphabetical order so they're easier to sort through.
127          */
128         omap_init_rtc();
129         omap_init_sti();
130
131         return 0;
132 }
133 arch_initcall(omap1_init_devices);
134