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 /*-------------------------------------------------------------------------*/
29 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
31 #define OMAP_RTC_BASE 0xfffb4800
33 static struct resource rtc_resources[] = {
35 .start = OMAP_RTC_BASE,
36 .end = OMAP_RTC_BASE + 0x5f,
37 .flags = IORESOURCE_MEM,
40 .start = INT_RTC_TIMER,
41 .flags = IORESOURCE_IRQ,
44 .start = INT_RTC_ALARM,
45 .flags = IORESOURCE_IRQ,
49 static struct platform_device omap_rtc_device = {
52 .num_resources = ARRAY_SIZE(rtc_resources),
53 .resource = rtc_resources,
56 static void omap_init_rtc(void)
58 (void) platform_device_register(&omap_rtc_device);
61 static inline void omap_init_rtc(void) {}
64 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
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
74 #define OMAP1_MBOX_BASE IO_ADDRESS(OMAP16XX_MAILBOX_BASE)
76 static struct resource mbox_resources[] = {
78 .start = OMAP1_MBOX_BASE,
79 .end = OMAP1_MBOX_BASE + OMAP1_MBOX_SIZE,
80 .flags = IORESOURCE_MEM,
83 .start = INT_DSP_MAILBOX1,
84 .flags = IORESOURCE_IRQ,
88 static struct platform_device mbox_device = {
91 .num_resources = ARRAY_SIZE(mbox_resources),
92 .resource = mbox_resources,
95 static inline void omap_init_mbox(void)
97 platform_device_register(&mbox_device);
100 static inline void omap_init_mbox(void) { }
103 #if defined(CONFIG_OMAP_STI)
105 #define OMAP1_STI_BASE IO_ADDRESS(0xfffea000)
106 #define OMAP1_STI_CHANNEL_BASE (OMAP1_STI_BASE + 0x400)
108 static struct resource sti_resources[] = {
110 .start = OMAP1_STI_BASE,
111 .end = OMAP1_STI_BASE + SZ_1K - 1,
112 .flags = IORESOURCE_MEM,
115 .start = OMAP1_STI_CHANNEL_BASE,
116 .end = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
117 .flags = IORESOURCE_MEM,
120 .start = INT_1610_STI,
121 .flags = IORESOURCE_IRQ,
125 static struct platform_device sti_device = {
128 .num_resources = ARRAY_SIZE(sti_resources),
129 .resource = sti_resources,
132 static inline void omap_init_sti(void)
134 platform_device_register(&sti_device);
137 static inline void omap_init_sti(void) {}
140 /*-------------------------------------------------------------------------*/
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):
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.
154 * Claiming GPIOs, and setting their direction and initial values, is the
155 * responsibility of the device drivers. So is responding to probe().
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.
162 static int __init omap1_init_devices(void)
164 /* please keep these calls, and their implementations above,
165 * in alphabetical order so they're easier to sort through.
174 arch_initcall(omap1_init_devices);