/*
* linux/arch/arm/mach-omap/board-voiceblue.c
*
* Modified from board-generic.c
*
* Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
*
* Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/gpio.h>
#include <asm/arch/tc.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
#include "common.h"
extern void omap_init_time(void);
extern int omap_gpio_init(void);
static struct plat_serial8250_port voiceblue_ports[] = {
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
.irq = OMAP_GPIO_IRQ(12),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
.irq = OMAP_GPIO_IRQ(13),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
.irq = OMAP_GPIO_IRQ(14),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
.irq = OMAP_GPIO_IRQ(15),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{ },
};
static struct platform_device serial_device = {
.name = "serial8250",
.id = 1,
.dev = {
.platform_data = voiceblue_ports,
},
};
static int __init ext_uart_init(void)
{
return platform_device_register(&serial_device);
}
arch_initcall(ext_uart_init);
static struct resource voiceblue_smc91x_resources[] = {
[0] = {
.start = OMAP_CS2_PHYS + 0x300,
.end = OMAP_CS2_PHYS + 0x300 + 16,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = OMAP_GPIO_IRQ(8),
.end = OMAP_GPIO_IRQ(8),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device voiceblue_smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
.resource = voiceblue_smc91x_resources,
};
static struct platform_device *voiceblue_devices[] __initdata = {
&voiceblue_smc91x_device,
};
static struct omap_usb_config voiceblue_usb_config __initdata = {
.hmc_mode = 3,
.register_host = 1,
.register_dev = 1,
.pins[0] = 2,
.pins[1] = 6,
.pins[2] = 6,
};
static struct omap_board_config_kernel voiceblue_config[] = {
{ OMAP_TAG_USB, &voiceblue_usb_config },
};
static void __init voiceblue_init_irq(void)
{
omap_init_irq();
omap_gpio_init();
}
static void __init voiceblue_init(void)
{
/* There is a good chance board is going up, so enable Power LED
* (it is connected through invertor) */
omap_writeb(0x00, OMAP_LPG1_LCR);
/* Watchdog */
omap_request_gpio(0);
/* smc91x reset */
omap_request_gpio(7);
omap_set_gpio_direction(7, 0);
omap_set_gpio_dataout(7, 1);
udelay(2); /* wait at least 100ns */
omap_set_gpio_dataout(7, 0);
mdelay(50); /* 50ms until PHY ready */
/* smc91x interrupt pin */
omap_request_gpio(8);
omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE);
/* 16C554 reset*/
omap_request_gpio(6);
omap_set_gpio_direction(6, 0);
omap_set_gpio_dataout(6, 0);
/* 16C554 interrupt pins */
omap_request_gpio(12);
omap_request_gpio(13);
omap_request_gpio(14);
omap_request_gpio(15);
omap_set_gpio_edge_ctrl(12, OMAP_GPIO_RISING_EDGE);
omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE);
omap_set_gpio_edge_ctrl(14, OMAP_GPIO_RISING_EDGE);
omap_set_gpio_edge_ctrl(15, OMAP_GPIO_RISING_EDGE);
platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
omap_board_config = voiceblue_config;
omap_board_config_size = ARRAY_SIZE(voiceblue_config);
}
static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};
static void __init voiceblue_map_io(void)
{
omap_map_io();
omap_serial_init(omap_serial_ports);
}
#define MACHINE_PANICED 1
#define MACHINE_REBOOTING 2
#define MACHINE_REBOOT 4
static unsigned long machine_state;
static int panic_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
if (test_and_set_bit(MACHINE_PANICED, &machine_state))
return NOTIFY_DONE;
/* Flash Power LED
* (TODO: Enable clock right way (enabled in bootloader already)) */
omap_writeb(0x78, OMAP_LPG1_LCR);
return NOTIFY_DONE;
}
static struct notifier_block panic_block = {
.notifier_call = panic_event,
};
static int __init setup_notifier(void)
{
/* Setup panic notifier */
notifier_chain_register(&panic_notifier_list, &panic_block);
return 0;
}
postcore_initcall(setup_notifier);
static int wdt_gpio_state;
void voiceblue_wdt_enable(void)
{
omap_set_gpio_direction(0, 0);
omap_set_gpio_dataout(0, 0);
omap_set_gpio_dataout(0, 1);
omap_set_gpio_dataout(0, 0);
wdt_gpio_state = 0;
}
void voiceblue_wdt_disable(void)
{
omap_set_gpio_dataout(0, 0);
omap_set_gpio_dataout(0, 1);
omap_set_gpio_dataout(0, 0);
omap_set_gpio_direction(0, 1);
}
void voiceblue_wdt_ping(void)
{
if (test_bit(MACHINE_REBOOT, &machine_state))
return;
wdt_gpio_state = !wdt_gpio_state;
omap_set_gpio_dataout(0, wdt_gpio_state);
}
void voiceblue_reset(void)
{
set_bit(MACHINE_REBOOT, &machine_state);
voiceblue_wdt_enable();
while (1) ;
}
EXPORT_SYMBOL(voiceblue_wdt_enable);
EXPORT_SYMBOL(voiceblue_wdt_disable);
EXPORT_SYMBOL(voiceblue_wdt_ping);
MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
MAINTAINER("Ladislav Michl <michl@2n.cz>")
BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
BOOT_PARAMS(0x10000100)
MAPIO(voiceblue_map_io)
INITIRQ(voiceblue_init_irq)
INIT_MACHINE(voiceblue_init)
.timer = &omap_timer,
MACHINE_END
