175 lines
4.3 KiB
C
175 lines
4.3 KiB
C
/*
|
|
* linux/arch/arm/mach-omap1/devices.c
|
|
*
|
|
* OMAP1 platform device setup/initialization
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/tc.h>
|
|
#include <mach/board.h>
|
|
#include <mach/mux.h>
|
|
#include <mach/gpio.h>
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
|
|
|
|
#define OMAP_RTC_BASE 0xfffb4800
|
|
|
|
static struct resource rtc_resources[] = {
|
|
{
|
|
.start = OMAP_RTC_BASE,
|
|
.end = OMAP_RTC_BASE + 0x5f,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_RTC_TIMER,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.start = INT_RTC_ALARM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device omap_rtc_device = {
|
|
.name = "omap_rtc",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(rtc_resources),
|
|
.resource = rtc_resources,
|
|
};
|
|
|
|
static void omap_init_rtc(void)
|
|
{
|
|
(void) platform_device_register(&omap_rtc_device);
|
|
}
|
|
#else
|
|
static inline void omap_init_rtc(void) {}
|
|
#endif
|
|
|
|
#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
|
|
|
|
#if defined(CONFIG_ARCH_OMAP15XX)
|
|
# define OMAP1_MBOX_SIZE 0x23
|
|
# define INT_DSP_MAILBOX1 INT_1510_DSP_MAILBOX1
|
|
#elif defined(CONFIG_ARCH_OMAP16XX)
|
|
# define OMAP1_MBOX_SIZE 0x2f
|
|
# define INT_DSP_MAILBOX1 INT_1610_DSP_MAILBOX1
|
|
#endif
|
|
|
|
#define OMAP1_MBOX_BASE IO_ADDRESS(OMAP16XX_MAILBOX_BASE)
|
|
|
|
static struct resource mbox_resources[] = {
|
|
{
|
|
.start = OMAP1_MBOX_BASE,
|
|
.end = OMAP1_MBOX_BASE + OMAP1_MBOX_SIZE,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_DSP_MAILBOX1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device mbox_device = {
|
|
.name = "mailbox",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(mbox_resources),
|
|
.resource = mbox_resources,
|
|
};
|
|
|
|
static inline void omap_init_mbox(void)
|
|
{
|
|
platform_device_register(&mbox_device);
|
|
}
|
|
#else
|
|
static inline void omap_init_mbox(void) { }
|
|
#endif
|
|
|
|
#if defined(CONFIG_OMAP_STI)
|
|
|
|
#define OMAP1_STI_BASE 0xfffea000
|
|
#define OMAP1_STI_CHANNEL_BASE (OMAP1_STI_BASE + 0x400)
|
|
|
|
static struct resource sti_resources[] = {
|
|
{
|
|
.start = OMAP1_STI_BASE,
|
|
.end = OMAP1_STI_BASE + SZ_1K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = OMAP1_STI_CHANNEL_BASE,
|
|
.end = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_1610_STI,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
static struct platform_device sti_device = {
|
|
.name = "sti",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(sti_resources),
|
|
.resource = sti_resources,
|
|
};
|
|
|
|
static inline void omap_init_sti(void)
|
|
{
|
|
platform_device_register(&sti_device);
|
|
}
|
|
#else
|
|
static inline void omap_init_sti(void) {}
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
* This gets called after board-specific INIT_MACHINE, and initializes most
|
|
* on-chip peripherals accessible on this board (except for few like USB):
|
|
*
|
|
* (a) Does any "standard config" pin muxing needed. Board-specific
|
|
* code will have muxed GPIO pins and done "nonstandard" setup;
|
|
* that code could live in the boot loader.
|
|
* (b) Populating board-specific platform_data with the data drivers
|
|
* rely on to handle wiring variations.
|
|
* (c) Creating platform devices as meaningful on this board and
|
|
* with this kernel configuration.
|
|
*
|
|
* Claiming GPIOs, and setting their direction and initial values, is the
|
|
* responsibility of the device drivers. So is responding to probe().
|
|
*
|
|
* Board-specific knowlege like creating devices or pin setup is to be
|
|
* kept out of drivers as much as possible. In particular, pin setup
|
|
* may be handled by the boot loader, and drivers should expect it will
|
|
* normally have been done by the time they're probed.
|
|
*/
|
|
static int __init omap1_init_devices(void)
|
|
{
|
|
/* please keep these calls, and their implementations above,
|
|
* in alphabetical order so they're easier to sort through.
|
|
*/
|
|
|
|
omap_init_mbox();
|
|
omap_init_rtc();
|
|
omap_init_sti();
|
|
|
|
return 0;
|
|
}
|
|
arch_initcall(omap1_init_devices);
|
|
|