2 * linux/arch/arm/mach-omap1/board-voiceblue.c
4 * Modified from board-generic.c
6 * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
8 * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/delay.h>
16 #include <linux/platform_device.h>
17 #include <linux/interrupt.h>
18 #include <linux/irq.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/notifier.h>
22 #include <linux/reboot.h>
23 #include <linux/serial_8250.h>
24 #include <linux/serial_reg.h>
26 #include <mach/hardware.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/flash.h>
30 #include <asm/mach/map.h>
32 #include <mach/common.h>
33 #include <mach/gpio.h>
38 static struct plat_serial8250_port voiceblue_ports[] = {
40 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
41 .irq = OMAP_GPIO_IRQ(12),
42 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
48 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
49 .irq = OMAP_GPIO_IRQ(13),
50 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
56 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
57 .irq = OMAP_GPIO_IRQ(14),
58 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
64 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
65 .irq = OMAP_GPIO_IRQ(15),
66 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
74 static struct platform_device serial_device = {
76 .id = PLAT8250_DEV_PLATFORM1,
78 .platform_data = voiceblue_ports,
82 static int __init ext_uart_init(void)
84 return platform_device_register(&serial_device);
86 arch_initcall(ext_uart_init);
88 static struct flash_platform_data voiceblue_flash_data = {
89 .map_name = "cfi_probe",
93 static struct resource voiceblue_flash_resource = {
94 .start = OMAP_CS0_PHYS,
95 .end = OMAP_CS0_PHYS + SZ_32M - 1,
96 .flags = IORESOURCE_MEM,
99 static struct platform_device voiceblue_flash_device = {
103 .platform_data = &voiceblue_flash_data,
106 .resource = &voiceblue_flash_resource,
109 static struct resource voiceblue_smc91x_resources[] = {
111 .start = OMAP_CS2_PHYS + 0x300,
112 .end = OMAP_CS2_PHYS + 0x300 + 16,
113 .flags = IORESOURCE_MEM,
116 .start = OMAP_GPIO_IRQ(8),
117 .end = OMAP_GPIO_IRQ(8),
118 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
122 static struct platform_device voiceblue_smc91x_device = {
125 .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
126 .resource = voiceblue_smc91x_resources,
129 static struct platform_device *voiceblue_devices[] __initdata = {
130 &voiceblue_flash_device,
131 &voiceblue_smc91x_device,
134 static struct omap_usb_config voiceblue_usb_config __initdata = {
143 static struct omap_uart_config voiceblue_uart_config __initdata = {
144 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
147 static struct omap_board_config_kernel voiceblue_config[] = {
148 { OMAP_TAG_USB, &voiceblue_usb_config },
149 { OMAP_TAG_UART, &voiceblue_uart_config },
152 static void __init voiceblue_init_irq(void)
154 omap1_init_common_hw();
159 static void __init voiceblue_init(void)
162 omap_request_gpio(0);
164 omap_request_gpio(7);
165 omap_set_gpio_direction(7, 0);
166 omap_set_gpio_dataout(7, 1);
167 udelay(2); /* wait at least 100ns */
168 omap_set_gpio_dataout(7, 0);
169 mdelay(50); /* 50ms until PHY ready */
170 /* smc91x interrupt pin */
171 omap_request_gpio(8);
173 omap_request_gpio(6);
174 omap_set_gpio_direction(6, 0);
175 omap_set_gpio_dataout(6, 0);
176 /* 16C554 interrupt pins */
177 omap_request_gpio(12);
178 omap_request_gpio(13);
179 omap_request_gpio(14);
180 omap_request_gpio(15);
181 set_irq_type(OMAP_GPIO_IRQ(12), IRQ_TYPE_EDGE_RISING);
182 set_irq_type(OMAP_GPIO_IRQ(13), IRQ_TYPE_EDGE_RISING);
183 set_irq_type(OMAP_GPIO_IRQ(14), IRQ_TYPE_EDGE_RISING);
184 set_irq_type(OMAP_GPIO_IRQ(15), IRQ_TYPE_EDGE_RISING);
186 platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
187 omap_board_config = voiceblue_config;
188 omap_board_config_size = ARRAY_SIZE(voiceblue_config);
190 omap_register_i2c_bus(1, 100, NULL, 0);
192 /* There is a good chance board is going up, so enable power LED
193 * (it is connected through invertor) */
194 omap_writeb(0x00, OMAP_LPG1_LCR);
195 omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
198 static void __init voiceblue_map_io(void)
200 omap1_map_common_io();
203 #define MACHINE_PANICED 1
204 #define MACHINE_REBOOTING 2
205 #define MACHINE_REBOOT 4
206 static unsigned long machine_state;
208 static int panic_event(struct notifier_block *this, unsigned long event,
211 if (test_and_set_bit(MACHINE_PANICED, &machine_state))
214 /* Flash power LED */
215 omap_writeb(0x78, OMAP_LPG1_LCR);
216 omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
221 static struct notifier_block panic_block = {
222 .notifier_call = panic_event,
225 static int __init voiceblue_setup(void)
227 /* Setup panic notifier */
228 atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
232 postcore_initcall(voiceblue_setup);
234 static int wdt_gpio_state;
236 void voiceblue_wdt_enable(void)
238 omap_set_gpio_direction(0, 0);
239 omap_set_gpio_dataout(0, 0);
240 omap_set_gpio_dataout(0, 1);
241 omap_set_gpio_dataout(0, 0);
245 void voiceblue_wdt_disable(void)
247 omap_set_gpio_dataout(0, 0);
248 omap_set_gpio_dataout(0, 1);
249 omap_set_gpio_dataout(0, 0);
250 omap_set_gpio_direction(0, 1);
253 void voiceblue_wdt_ping(void)
255 if (test_bit(MACHINE_REBOOT, &machine_state))
258 wdt_gpio_state = !wdt_gpio_state;
259 omap_set_gpio_dataout(0, wdt_gpio_state);
262 void voiceblue_reset(void)
264 set_bit(MACHINE_REBOOT, &machine_state);
265 voiceblue_wdt_enable();
269 EXPORT_SYMBOL(voiceblue_wdt_enable);
270 EXPORT_SYMBOL(voiceblue_wdt_disable);
271 EXPORT_SYMBOL(voiceblue_wdt_ping);
273 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
274 /* Maintainer: Ladislav Michl <michl@2n.cz> */
275 .phys_io = 0xfff00000,
276 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
277 .boot_params = 0x10000100,
278 .map_io = voiceblue_map_io,
279 .init_irq = voiceblue_init_irq,
280 .init_machine = voiceblue_init,
281 .timer = &omap_timer,