2 * linux/arch/arm/mach-omap1/devices.c
4 * OMAP1 platform device setup/initialization
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.
12 #include <linux/config.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
18 #include <asm/hardware.h>
20 #include <asm/mach-types.h>
21 #include <asm/mach/map.h>
23 #include <asm/arch/tc.h>
24 #include <asm/arch/board.h>
25 #include <asm/arch/mux.h>
26 #include <asm/arch/gpio.h>
28 /*-------------------------------------------------------------------------*/
30 #if defined(CONFIG_OMAP_RTC) || defined(CONFIG_OMAP_RTC)
32 #define OMAP_RTC_BASE 0xfffb4800
34 static struct resource rtc_resources[] = {
36 .start = OMAP_RTC_BASE,
37 .end = OMAP_RTC_BASE + 0x5f,
38 .flags = IORESOURCE_MEM,
41 .start = INT_RTC_TIMER,
42 .flags = IORESOURCE_IRQ,
45 .start = INT_RTC_ALARM,
46 .flags = IORESOURCE_IRQ,
50 static struct platform_device omap_rtc_device = {
53 .num_resources = ARRAY_SIZE(rtc_resources),
54 .resource = rtc_resources,
57 static void omap_init_rtc(void)
59 (void) platform_device_register(&omap_rtc_device);
62 static inline void omap_init_rtc(void) {}
65 #if defined(CONFIG_OMAP_STI)
67 #define OMAP1_STI_BASE IO_ADDRESS(0xfffea000)
68 #define OMAP1_STI_CHANNEL_BASE (OMAP1_STI_BASE + 0x400)
70 static struct resource sti_resources[] = {
72 .start = OMAP1_STI_BASE,
73 .end = OMAP1_STI_BASE + SZ_1K - 1,
74 .flags = IORESOURCE_MEM,
77 .start = OMAP1_STI_CHANNEL_BASE,
78 .end = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
79 .flags = IORESOURCE_MEM,
82 .start = INT_1610_STI,
83 .flags = IORESOURCE_IRQ,
87 static struct platform_device sti_device = {
90 .num_resources = ARRAY_SIZE(sti_resources),
91 .resource = sti_resources,
94 static inline void omap_init_sti(void)
96 platform_device_register(&sti_device);
99 static inline void omap_init_sti(void) {}
102 /*-------------------------------------------------------------------------*/
105 * This gets called after board-specific INIT_MACHINE, and initializes most
106 * on-chip peripherals accessible on this board (except for few like USB):
108 * (a) Does any "standard config" pin muxing needed. Board-specific
109 * code will have muxed GPIO pins and done "nonstandard" setup;
110 * that code could live in the boot loader.
111 * (b) Populating board-specific platform_data with the data drivers
112 * rely on to handle wiring variations.
113 * (c) Creating platform devices as meaningful on this board and
114 * with this kernel configuration.
116 * Claiming GPIOs, and setting their direction and initial values, is the
117 * responsibility of the device drivers. So is responding to probe().
119 * Board-specific knowlege like creating devices or pin setup is to be
120 * kept out of drivers as much as possible. In particular, pin setup
121 * may be handled by the boot loader, and drivers should expect it will
122 * normally have been done by the time they're probed.
124 static int __init omap1_init_devices(void)
126 /* please keep these calls, and their implementations above,
127 * in alphabetical order so they're easier to sort through.
134 arch_initcall(omap1_init_devices);