/* * linux/arch/arm/mach-omap1/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/platform_device.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/mtd/physmap.h> #include <linux/notifier.h> #include <linux/reboot.h> #include <linux/serial_8250.h> #include <linux/serial_reg.h> #include <linux/smc91x.h> #include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <plat/common.h> #include <mach/gpio.h> #include <plat/flash.h> #include <plat/mux.h> #include <plat/tc.h> #include <plat/usb.h> 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 = PLAT8250_DEV_PLATFORM1, .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 physmap_flash_data voiceblue_flash_data = { .width = 2, .set_vpp = omap1_set_vpp, }; static struct resource voiceblue_flash_resource = { .start = OMAP_CS0_PHYS, .end = OMAP_CS0_PHYS + SZ_32M - 1, .flags = IORESOURCE_MEM, }; static struct platform_device voiceblue_flash_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &voiceblue_flash_data, }, .num_resources = 1, .resource = &voiceblue_flash_resource, }; static struct smc91x_platdata voiceblue_smc91x_info = { .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, .leda = RPC_LED_100_10, .ledb = RPC_LED_TX_RX, }; 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 | IORESOURCE_IRQ_HIGHEDGE, }, }; static struct platform_device voiceblue_smc91x_device = { .name = "smc91x", .id = 0, .dev = { .platform_data = &voiceblue_smc91x_info, }, .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources), .resource = voiceblue_smc91x_resources, }; static struct platform_device *voiceblue_devices[] __initdata = { &voiceblue_flash_device, &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[] = { }; static void __init voiceblue_init_irq(void) { omap1_init_common_hw(); omap_init_irq(); omap_gpio_init(); } static void __init voiceblue_init(void) { /* mux pins for uarts */ omap_cfg_reg(UART1_TX); omap_cfg_reg(UART1_RTS); omap_cfg_reg(UART2_TX); omap_cfg_reg(UART2_RTS); omap_cfg_reg(UART3_TX); omap_cfg_reg(UART3_RX); /* Watchdog */ gpio_request(0, "Watchdog"); /* smc91x reset */ gpio_request(7, "SMC91x reset"); gpio_direction_output(7, 1); udelay(2); /* wait at least 100ns */ gpio_set_value(7, 0); mdelay(50); /* 50ms until PHY ready */ /* smc91x interrupt pin */ gpio_request(8, "SMC91x irq"); /* 16C554 reset*/ gpio_request(6, "16C554 reset"); gpio_direction_output(6, 0); /* 16C554 interrupt pins */ gpio_request(12, "16C554 irq"); gpio_request(13, "16C554 irq"); gpio_request(14, "16C554 irq"); gpio_request(15, "16C554 irq"); set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING); set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING); set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING); set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING); platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices)); omap_board_config = voiceblue_config; omap_board_config_size = ARRAY_SIZE(voiceblue_config); omap_serial_init(); omap1_usb_init(&voiceblue_usb_config); omap_register_i2c_bus(1, 100, NULL, 0); /* There is a good chance board is going up, so enable power LED * (it is connected through invertor) */ omap_writeb(0x00, OMAP_LPG1_LCR); omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */ } static void __init voiceblue_map_io(void) { omap1_map_common_io(); } #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 */ omap_writeb(0x78, OMAP_LPG1_LCR); omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */ return NOTIFY_DONE; } static struct notifier_block panic_block = { .notifier_call = panic_event, }; static int __init voiceblue_setup(void) { /* Setup panic notifier */ atomic_notifier_chain_register(&panic_notifier_list, &panic_block); return 0; } postcore_initcall(voiceblue_setup); static int wdt_gpio_state; void voiceblue_wdt_enable(void) { gpio_direction_output(0, 0); gpio_set_value(0, 1); gpio_set_value(0, 0); wdt_gpio_state = 0; } void voiceblue_wdt_disable(void) { gpio_set_value(0, 0); gpio_set_value(0, 1); gpio_set_value(0, 0); gpio_direction_input(0); } void voiceblue_wdt_ping(void) { if (test_bit(MACHINE_REBOOT, &machine_state)) return; wdt_gpio_state = !wdt_gpio_state; gpio_set_value(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_params = 0x10000100, .map_io = voiceblue_map_io, .reserve = omap_reserve, .init_irq = voiceblue_init_irq, .init_machine = voiceblue_init, .timer = &omap_timer, MACHINE_END