258 lines
6.0 KiB
C
258 lines
6.0 KiB
C
/*
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* linux/arch/arm/mach-omap1/board-voiceblue.c
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*
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* Modified from board-generic.c
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*
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* Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
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*
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* Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/notifier.h>
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#include <linux/reboot.h>
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#include <linux/serial_8250.h>
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#include <linux/serial_reg.h>
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#include <asm/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/tc.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/usb.h>
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#include <asm/arch/common.h>
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extern void omap_init_time(void);
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extern int omap_gpio_init(void);
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static struct plat_serial8250_port voiceblue_ports[] = {
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{
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.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
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.irq = OMAP_GPIO_IRQ(12),
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 1,
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.uartclk = 3686400,
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},
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{
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.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
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.irq = OMAP_GPIO_IRQ(13),
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 1,
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.uartclk = 3686400,
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},
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{
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.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
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.irq = OMAP_GPIO_IRQ(14),
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 1,
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.uartclk = 3686400,
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},
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{
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.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
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.irq = OMAP_GPIO_IRQ(15),
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 1,
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.uartclk = 3686400,
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},
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{ },
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};
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static struct platform_device serial_device = {
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.name = "serial8250",
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.id = 1,
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.dev = {
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.platform_data = voiceblue_ports,
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},
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};
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static int __init ext_uart_init(void)
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{
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return platform_device_register(&serial_device);
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}
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arch_initcall(ext_uart_init);
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static struct resource voiceblue_smc91x_resources[] = {
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[0] = {
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.start = OMAP_CS2_PHYS + 0x300,
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.end = OMAP_CS2_PHYS + 0x300 + 16,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = OMAP_GPIO_IRQ(8),
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.end = OMAP_GPIO_IRQ(8),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device voiceblue_smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
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.resource = voiceblue_smc91x_resources,
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};
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static struct platform_device *voiceblue_devices[] __initdata = {
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&voiceblue_smc91x_device,
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};
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static struct omap_usb_config voiceblue_usb_config __initdata = {
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.hmc_mode = 3,
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.register_host = 1,
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.register_dev = 1,
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.pins[0] = 2,
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.pins[1] = 6,
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.pins[2] = 6,
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};
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static struct omap_board_config_kernel voiceblue_config[] = {
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{ OMAP_TAG_USB, &voiceblue_usb_config },
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};
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static void __init voiceblue_init_irq(void)
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{
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omap_init_irq();
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omap_gpio_init();
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}
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static void __init voiceblue_init(void)
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{
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/* There is a good chance board is going up, so enable Power LED
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* (it is connected through invertor) */
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omap_writeb(0x00, OMAP_LPG1_LCR);
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/* Watchdog */
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omap_request_gpio(0);
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/* smc91x reset */
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omap_request_gpio(7);
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omap_set_gpio_direction(7, 0);
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omap_set_gpio_dataout(7, 1);
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udelay(2); /* wait at least 100ns */
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omap_set_gpio_dataout(7, 0);
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mdelay(50); /* 50ms until PHY ready */
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/* smc91x interrupt pin */
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omap_request_gpio(8);
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omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE);
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/* 16C554 reset*/
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omap_request_gpio(6);
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omap_set_gpio_direction(6, 0);
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omap_set_gpio_dataout(6, 0);
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/* 16C554 interrupt pins */
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omap_request_gpio(12);
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omap_request_gpio(13);
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omap_request_gpio(14);
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omap_request_gpio(15);
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omap_set_gpio_edge_ctrl(12, OMAP_GPIO_RISING_EDGE);
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omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE);
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omap_set_gpio_edge_ctrl(14, OMAP_GPIO_RISING_EDGE);
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omap_set_gpio_edge_ctrl(15, OMAP_GPIO_RISING_EDGE);
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platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
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omap_board_config = voiceblue_config;
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omap_board_config_size = ARRAY_SIZE(voiceblue_config);
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}
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static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};
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static void __init voiceblue_map_io(void)
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{
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omap_map_common_io();
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omap_serial_init(omap_serial_ports);
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}
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#define MACHINE_PANICED 1
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#define MACHINE_REBOOTING 2
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#define MACHINE_REBOOT 4
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static unsigned long machine_state;
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static int panic_event(struct notifier_block *this, unsigned long event,
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void *ptr)
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{
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if (test_and_set_bit(MACHINE_PANICED, &machine_state))
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return NOTIFY_DONE;
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/* Flash Power LED
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* (TODO: Enable clock right way (enabled in bootloader already)) */
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omap_writeb(0x78, OMAP_LPG1_LCR);
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return NOTIFY_DONE;
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}
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static struct notifier_block panic_block = {
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.notifier_call = panic_event,
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};
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static int __init setup_notifier(void)
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{
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/* Setup panic notifier */
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notifier_chain_register(&panic_notifier_list, &panic_block);
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return 0;
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}
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postcore_initcall(setup_notifier);
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static int wdt_gpio_state;
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void voiceblue_wdt_enable(void)
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{
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omap_set_gpio_direction(0, 0);
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omap_set_gpio_dataout(0, 0);
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omap_set_gpio_dataout(0, 1);
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omap_set_gpio_dataout(0, 0);
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wdt_gpio_state = 0;
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}
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void voiceblue_wdt_disable(void)
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{
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omap_set_gpio_dataout(0, 0);
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omap_set_gpio_dataout(0, 1);
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omap_set_gpio_dataout(0, 0);
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omap_set_gpio_direction(0, 1);
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}
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void voiceblue_wdt_ping(void)
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{
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if (test_bit(MACHINE_REBOOT, &machine_state))
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return;
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wdt_gpio_state = !wdt_gpio_state;
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omap_set_gpio_dataout(0, wdt_gpio_state);
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}
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void voiceblue_reset(void)
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{
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set_bit(MACHINE_REBOOT, &machine_state);
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voiceblue_wdt_enable();
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while (1) ;
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}
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EXPORT_SYMBOL(voiceblue_wdt_enable);
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EXPORT_SYMBOL(voiceblue_wdt_disable);
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EXPORT_SYMBOL(voiceblue_wdt_ping);
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MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
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/* Maintainer: Ladislav Michl <michl@2n.cz> */
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.phys_ram = 0x10000000,
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.phys_io = 0xfff00000,
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.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
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.boot_params = 0x10000100,
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.map_io = voiceblue_map_io,
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.init_irq = voiceblue_init_irq,
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.init_machine = voiceblue_init,
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.timer = &omap_timer,
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MACHINE_END
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