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/mtd/physmap.h>
22 #include <linux/notifier.h>
23 #include <linux/reboot.h>
24 #include <linux/serial_8250.h>
25 #include <linux/serial_reg.h>
26 #include <linux/smc91x.h>
28 #include <mach/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
33 #include <plat/common.h>
34 #include <mach/gpio.h>
35 #include <plat/flash.h>
40 static struct plat_serial8250_port voiceblue_ports[] = {
42 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
43 .irq = OMAP_GPIO_IRQ(12),
44 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
50 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
51 .irq = OMAP_GPIO_IRQ(13),
52 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
58 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
59 .irq = OMAP_GPIO_IRQ(14),
60 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
66 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
67 .irq = OMAP_GPIO_IRQ(15),
68 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
76 static struct platform_device serial_device = {
78 .id = PLAT8250_DEV_PLATFORM1,
80 .platform_data = voiceblue_ports,
84 static int __init ext_uart_init(void)
86 if (!machine_is_voiceblue())
89 return platform_device_register(&serial_device);
91 arch_initcall(ext_uart_init);
93 static struct physmap_flash_data voiceblue_flash_data = {
95 .set_vpp = omap1_set_vpp,
98 static struct resource voiceblue_flash_resource = {
99 .start = OMAP_CS0_PHYS,
100 .end = OMAP_CS0_PHYS + SZ_32M - 1,
101 .flags = IORESOURCE_MEM,
104 static struct platform_device voiceblue_flash_device = {
105 .name = "physmap-flash",
108 .platform_data = &voiceblue_flash_data,
111 .resource = &voiceblue_flash_resource,
114 static struct smc91x_platdata voiceblue_smc91x_info = {
115 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
116 .leda = RPC_LED_100_10,
117 .ledb = RPC_LED_TX_RX,
120 static struct resource voiceblue_smc91x_resources[] = {
122 .start = OMAP_CS2_PHYS + 0x300,
123 .end = OMAP_CS2_PHYS + 0x300 + 16,
124 .flags = IORESOURCE_MEM,
127 .start = OMAP_GPIO_IRQ(8),
128 .end = OMAP_GPIO_IRQ(8),
129 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
133 static struct platform_device voiceblue_smc91x_device = {
137 .platform_data = &voiceblue_smc91x_info,
139 .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
140 .resource = voiceblue_smc91x_resources,
143 static struct platform_device *voiceblue_devices[] __initdata = {
144 &voiceblue_flash_device,
145 &voiceblue_smc91x_device,
148 static struct omap_usb_config voiceblue_usb_config __initdata = {
157 static struct omap_board_config_kernel voiceblue_config[] = {
160 static void __init voiceblue_init_irq(void)
162 omap1_init_common_hw();
167 static void __init voiceblue_init(void)
169 /* mux pins for uarts */
170 omap_cfg_reg(UART1_TX);
171 omap_cfg_reg(UART1_RTS);
172 omap_cfg_reg(UART2_TX);
173 omap_cfg_reg(UART2_RTS);
174 omap_cfg_reg(UART3_TX);
175 omap_cfg_reg(UART3_RX);
178 gpio_request(0, "Watchdog");
180 gpio_request(7, "SMC91x reset");
181 gpio_direction_output(7, 1);
182 udelay(2); /* wait at least 100ns */
183 gpio_set_value(7, 0);
184 mdelay(50); /* 50ms until PHY ready */
185 /* smc91x interrupt pin */
186 gpio_request(8, "SMC91x irq");
188 gpio_request(6, "16C554 reset");
189 gpio_direction_output(6, 0);
190 /* 16C554 interrupt pins */
191 gpio_request(12, "16C554 irq");
192 gpio_request(13, "16C554 irq");
193 gpio_request(14, "16C554 irq");
194 gpio_request(15, "16C554 irq");
195 set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
196 set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
197 set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
198 set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
200 platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
201 omap_board_config = voiceblue_config;
202 omap_board_config_size = ARRAY_SIZE(voiceblue_config);
204 omap1_usb_init(&voiceblue_usb_config);
205 omap_register_i2c_bus(1, 100, NULL, 0);
207 /* There is a good chance board is going up, so enable power LED
208 * (it is connected through invertor) */
209 omap_writeb(0x00, OMAP_LPG1_LCR);
210 omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
213 static void __init voiceblue_map_io(void)
215 omap1_map_common_io();
218 #define MACHINE_PANICED 1
219 #define MACHINE_REBOOTING 2
220 #define MACHINE_REBOOT 4
221 static unsigned long machine_state;
223 static int panic_event(struct notifier_block *this, unsigned long event,
226 if (test_and_set_bit(MACHINE_PANICED, &machine_state))
229 /* Flash power LED */
230 omap_writeb(0x78, OMAP_LPG1_LCR);
231 omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
236 static struct notifier_block panic_block = {
237 .notifier_call = panic_event,
240 static int __init voiceblue_setup(void)
242 if (!machine_is_voiceblue())
245 /* Setup panic notifier */
246 atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
250 postcore_initcall(voiceblue_setup);
252 static int wdt_gpio_state;
254 void voiceblue_wdt_enable(void)
256 gpio_direction_output(0, 0);
257 gpio_set_value(0, 1);
258 gpio_set_value(0, 0);
262 void voiceblue_wdt_disable(void)
264 gpio_set_value(0, 0);
265 gpio_set_value(0, 1);
266 gpio_set_value(0, 0);
267 gpio_direction_input(0);
270 void voiceblue_wdt_ping(void)
272 if (test_bit(MACHINE_REBOOT, &machine_state))
275 wdt_gpio_state = !wdt_gpio_state;
276 gpio_set_value(0, wdt_gpio_state);
279 void voiceblue_reset(void)
281 set_bit(MACHINE_REBOOT, &machine_state);
282 voiceblue_wdt_enable();
286 EXPORT_SYMBOL(voiceblue_wdt_enable);
287 EXPORT_SYMBOL(voiceblue_wdt_disable);
288 EXPORT_SYMBOL(voiceblue_wdt_ping);
290 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
291 /* Maintainer: Ladislav Michl <michl@2n.cz> */
292 .boot_params = 0x10000100,
293 .map_io = voiceblue_map_io,
294 .reserve = omap_reserve,
295 .init_irq = voiceblue_init_irq,
296 .init_machine = voiceblue_init,
297 .timer = &omap_timer,