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160 lines
3.8 KiB
160 lines
3.8 KiB
/*
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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 Netstar OMAP board.
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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/platform_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 <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/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 __init omap_init_time(void);
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extern int omap_gpio_init(void);
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static struct resource netstar_smc91x_resources[] = {
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[0] = {
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.start = OMAP_CS1_PHYS + 0x300,
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.end = OMAP_CS1_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 netstar_smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(netstar_smc91x_resources),
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.resource = netstar_smc91x_resources,
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};
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static struct platform_device *netstar_devices[] __initdata = {
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&netstar_smc91x_device,
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};
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static struct omap_uart_config netstar_uart_config __initdata = {
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.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
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};
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static struct omap_board_config_kernel netstar_config[] = {
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{ OMAP_TAG_UART, &netstar_uart_config },
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};
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static void __init netstar_init_irq(void)
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{
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omap1_init_common_hw();
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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 netstar_init(void)
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{
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/* green LED */
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omap_request_gpio(4);
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omap_set_gpio_direction(4, 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_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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set_irq_type(OMAP_GPIO_IRQ(12), IRQT_FALLING);
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set_irq_type(OMAP_GPIO_IRQ(13), IRQT_FALLING);
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set_irq_type(OMAP_GPIO_IRQ(14), IRQT_FALLING);
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set_irq_type(OMAP_GPIO_IRQ(15), IRQT_FALLING);
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platform_add_devices(netstar_devices, ARRAY_SIZE(netstar_devices));
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/* Switch on green LED */
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omap_set_gpio_dataout(4, 0);
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/* Switch off red LED */
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omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
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omap_writeb(0x80, OMAP_LPG1_LCR);
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omap_board_config = netstar_config;
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omap_board_config_size = ARRAY_SIZE(netstar_config);
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omap_serial_init();
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}
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static void __init netstar_map_io(void)
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{
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omap1_map_common_io();
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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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/* Switch off green LED */
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omap_set_gpio_dataout(4, 1);
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/* Flash red LED */
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omap_writeb(0x78, OMAP_LPG1_LCR);
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omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
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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 netstar_late_init(void)
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{
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/* TODO: Setup front panel switch here */
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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(netstar_late_init);
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MACHINE_START(NETSTAR, "NetStar OMAP5910")
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/* Maintainer: Ladislav Michl <michl@2n.cz> */
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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 = netstar_map_io,
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.init_irq = netstar_init_irq,
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.init_machine = netstar_init,
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.timer = &omap_timer,
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MACHINE_END
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