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/module.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
17 #include <asm/hardware.h>
19 #include <asm/mach-types.h>
20 #include <asm/mach/map.h>
22 #include <asm/arch/tc.h>
23 #include <asm/arch/board.h>
24 #include <asm/arch/mux.h>
25 #include <asm/arch/gpio.h>
27 #if defined(CONFIG_OMAP1610_IR) || defined(CONFIG_OMAP161O_IR_MODULE)
29 static u64 irda_dmamask = 0xffffffff;
31 static struct platform_device omap1610ir_device = {
32 .name = "omap1610-ir",
35 .dma_mask = &irda_dmamask,
39 static void omap_init_irda(void)
41 /* FIXME define and use a boot tag, members something like:
42 * u8 uart; // uart1, or uart3
43 * ... but driver only handles uart3 for now
44 * s16 fir_sel; // gpio for SIR vs FIR
45 * ... may prefer a callback for SIR/MIR/FIR mode select;
46 * while h2 uses a GPIO, H3 uses a gpio expander
48 if (machine_is_omap_h2()
49 || machine_is_omap_h3())
50 (void) platform_device_register(&omap1610ir_device);
53 static inline void omap_init_irda(void) {}
56 /*-------------------------------------------------------------------------*/
58 #if defined(CONFIG_OMAP_RTC) || defined(CONFIG_OMAP_RTC)
60 #define OMAP_RTC_BASE 0xfffb4800
62 static struct resource rtc_resources[] = {
64 .start = OMAP_RTC_BASE,
65 .end = OMAP_RTC_BASE + 0x5f,
66 .flags = IORESOURCE_MEM,
69 .start = INT_RTC_TIMER,
70 .flags = IORESOURCE_IRQ,
73 .start = INT_RTC_ALARM,
74 .flags = IORESOURCE_IRQ,
78 static struct platform_device omap_rtc_device = {
81 .num_resources = ARRAY_SIZE(rtc_resources),
82 .resource = rtc_resources,
85 static void omap_init_rtc(void)
87 (void) platform_device_register(&omap_rtc_device);
90 static inline void omap_init_rtc(void) {}
93 #if defined(CONFIG_OMAP_STI)
95 #define OMAP1_STI_BASE IO_ADDRESS(0xfffea000)
96 #define OMAP1_STI_CHANNEL_BASE (OMAP1_STI_BASE + 0x400)
98 static struct resource sti_resources[] = {
100 .start = OMAP1_STI_BASE,
101 .end = OMAP1_STI_BASE + SZ_1K - 1,
102 .flags = IORESOURCE_MEM,
105 .start = OMAP1_STI_CHANNEL_BASE,
106 .end = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
107 .flags = IORESOURCE_MEM,
110 .start = INT_1610_STI,
111 .flags = IORESOURCE_IRQ,
115 static struct platform_device sti_device = {
118 .num_resources = ARRAY_SIZE(sti_resources),
119 .resource = sti_resources,
122 static inline void omap_init_sti(void)
124 platform_device_register(&sti_device);
127 static inline void omap_init_sti(void) {}
130 /*-------------------------------------------------------------------------*/
133 * This gets called after board-specific INIT_MACHINE, and initializes most
134 * on-chip peripherals accessible on this board (except for few like USB):
136 * (a) Does any "standard config" pin muxing needed. Board-specific
137 * code will have muxed GPIO pins and done "nonstandard" setup;
138 * that code could live in the boot loader.
139 * (b) Populating board-specific platform_data with the data drivers
140 * rely on to handle wiring variations.
141 * (c) Creating platform devices as meaningful on this board and
142 * with this kernel configuration.
144 * Claiming GPIOs, and setting their direction and initial values, is the
145 * responsibility of the device drivers. So is responding to probe().
147 * Board-specific knowlege like creating devices or pin setup is to be
148 * kept out of drivers as much as possible. In particular, pin setup
149 * may be handled by the boot loader, and drivers should expect it will
150 * normally have been done by the time they're probed.
152 static int __init omap1_init_devices(void)
154 /* please keep these calls, and their implementations above,
155 * in alphabetical order so they're easier to sort through.
163 arch_initcall(omap1_init_devices);