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/gpio.h>
17 #include <linux/platform_device.h>
18 #include <linux/interrupt.h>
19 #include <linux/irq.h>
20 #include <linux/init.h>
21 #include <linux/kernel.h>
22 #include <linux/mtd/physmap.h>
23 #include <linux/notifier.h>
24 #include <linux/reboot.h>
25 #include <linux/serial_8250.h>
26 #include <linux/serial_reg.h>
27 #include <linux/smc91x.h>
28 #include <linux/export.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
34 #include <plat/board-voiceblue.h>
35 #include <plat/flash.h>
40 #include <mach/hardware.h>
44 static struct plat_serial8250_port voiceblue_ports[] = {
46 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
47 .irq = OMAP_GPIO_IRQ(12),
48 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
54 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
55 .irq = OMAP_GPIO_IRQ(13),
56 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
62 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
63 .irq = OMAP_GPIO_IRQ(14),
64 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
70 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
71 .irq = OMAP_GPIO_IRQ(15),
72 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
80 static struct platform_device serial_device = {
82 .id = PLAT8250_DEV_PLATFORM1,
84 .platform_data = voiceblue_ports,
88 static int __init ext_uart_init(void)
90 if (!machine_is_voiceblue())
93 return platform_device_register(&serial_device);
95 arch_initcall(ext_uart_init);
97 static struct physmap_flash_data voiceblue_flash_data = {
99 .set_vpp = omap1_set_vpp,
102 static struct resource voiceblue_flash_resource = {
103 .start = OMAP_CS0_PHYS,
104 .end = OMAP_CS0_PHYS + SZ_32M - 1,
105 .flags = IORESOURCE_MEM,
108 static struct platform_device voiceblue_flash_device = {
109 .name = "physmap-flash",
112 .platform_data = &voiceblue_flash_data,
115 .resource = &voiceblue_flash_resource,
118 static struct smc91x_platdata voiceblue_smc91x_info = {
119 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
120 .leda = RPC_LED_100_10,
121 .ledb = RPC_LED_TX_RX,
124 static struct resource voiceblue_smc91x_resources[] = {
126 .start = OMAP_CS2_PHYS + 0x300,
127 .end = OMAP_CS2_PHYS + 0x300 + 16,
128 .flags = IORESOURCE_MEM,
131 .start = OMAP_GPIO_IRQ(8),
132 .end = OMAP_GPIO_IRQ(8),
133 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
137 static struct platform_device voiceblue_smc91x_device = {
141 .platform_data = &voiceblue_smc91x_info,
143 .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
144 .resource = voiceblue_smc91x_resources,
147 static struct platform_device *voiceblue_devices[] __initdata = {
148 &voiceblue_flash_device,
149 &voiceblue_smc91x_device,
152 static struct omap_usb_config voiceblue_usb_config __initdata = {
161 static struct omap_board_config_kernel voiceblue_config[] = {
164 #define MACHINE_PANICED 1
165 #define MACHINE_REBOOTING 2
166 #define MACHINE_REBOOT 4
167 static unsigned long machine_state;
169 static int panic_event(struct notifier_block *this, unsigned long event,
172 if (test_and_set_bit(MACHINE_PANICED, &machine_state))
175 /* Flash power LED */
176 omap_writeb(0x78, OMAP_LPG1_LCR);
177 omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
182 static struct notifier_block panic_block = {
183 .notifier_call = panic_event,
186 static int __init voiceblue_setup(void)
188 if (!machine_is_voiceblue())
191 /* Setup panic notifier */
192 atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
196 postcore_initcall(voiceblue_setup);
198 static int wdt_gpio_state;
200 void voiceblue_wdt_enable(void)
202 gpio_direction_output(0, 0);
203 gpio_set_value(0, 1);
204 gpio_set_value(0, 0);
208 void voiceblue_wdt_disable(void)
210 gpio_set_value(0, 0);
211 gpio_set_value(0, 1);
212 gpio_set_value(0, 0);
213 gpio_direction_input(0);
216 void voiceblue_wdt_ping(void)
218 if (test_bit(MACHINE_REBOOT, &machine_state))
221 wdt_gpio_state = !wdt_gpio_state;
222 gpio_set_value(0, wdt_gpio_state);
225 static void voiceblue_restart(char mode, const char *cmd)
228 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
229 * "Global Software Reset Affects Traffic Controller Frequency".
231 if (cpu_is_omap5912()) {
232 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
233 omap_writew(0x8, ARM_RSTCT1);
236 set_bit(MACHINE_REBOOT, &machine_state);
237 voiceblue_wdt_enable();
241 EXPORT_SYMBOL(voiceblue_wdt_enable);
242 EXPORT_SYMBOL(voiceblue_wdt_disable);
243 EXPORT_SYMBOL(voiceblue_wdt_ping);
245 static void __init voiceblue_init(void)
247 /* mux pins for uarts */
248 omap_cfg_reg(UART1_TX);
249 omap_cfg_reg(UART1_RTS);
250 omap_cfg_reg(UART2_TX);
251 omap_cfg_reg(UART2_RTS);
252 omap_cfg_reg(UART3_TX);
253 omap_cfg_reg(UART3_RX);
256 gpio_request(0, "Watchdog");
258 gpio_request(7, "SMC91x reset");
259 gpio_direction_output(7, 1);
260 udelay(2); /* wait at least 100ns */
261 gpio_set_value(7, 0);
262 mdelay(50); /* 50ms until PHY ready */
263 /* smc91x interrupt pin */
264 gpio_request(8, "SMC91x irq");
266 gpio_request(6, "16C554 reset");
267 gpio_direction_output(6, 0);
268 /* 16C554 interrupt pins */
269 gpio_request(12, "16C554 irq");
270 gpio_request(13, "16C554 irq");
271 gpio_request(14, "16C554 irq");
272 gpio_request(15, "16C554 irq");
273 irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
274 irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
275 irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
276 irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
278 platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
279 omap_board_config = voiceblue_config;
280 omap_board_config_size = ARRAY_SIZE(voiceblue_config);
282 omap1_usb_init(&voiceblue_usb_config);
283 omap_register_i2c_bus(1, 100, NULL, 0);
285 /* There is a good chance board is going up, so enable power LED
286 * (it is connected through invertor) */
287 omap_writeb(0x00, OMAP_LPG1_LCR);
288 omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
291 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
292 /* Maintainer: Ladislav Michl <michl@2n.cz> */
293 .atag_offset = 0x100,
294 .map_io = omap15xx_map_io,
295 .init_early = omap1_init_early,
296 .reserve = omap_reserve,
297 .init_irq = omap1_init_irq,
298 .init_machine = voiceblue_init,
299 .timer = &omap1_timer,
300 .restart = voiceblue_restart,