diff options
Diffstat (limited to 'arch/arm/mach-omap/board-voiceblue.c')
| -rw-r--r-- | arch/arm/mach-omap/board-voiceblue.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/arch/arm/mach-omap/board-voiceblue.c b/arch/arm/mach-omap/board-voiceblue.c new file mode 100644 index 0000000..f1a5bff --- /dev/null +++ b/arch/arm/mach-omap/board-voiceblue.c @@ -0,0 +1,256 @@ +/* + * 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 |