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 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
53 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
54 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
60 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
61 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
67 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
68 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
76 static struct platform_device serial_device = {
78 .id = PLAT8250_DEV_PLATFORM1,
81 static int __init ext_uart_init(void)
83 if (!machine_is_voiceblue())
86 voiceblue_ports[0].irq = gpio_to_irq(12);
87 voiceblue_ports[1].irq = gpio_to_irq(13);
88 voiceblue_ports[2].irq = gpio_to_irq(14);
89 voiceblue_ports[3].irq = gpio_to_irq(15);
90 serial_device.dev.platform_data = voiceblue_ports;
91 return platform_device_register(&serial_device);
93 arch_initcall(ext_uart_init);
95 static struct physmap_flash_data voiceblue_flash_data = {
97 .set_vpp = omap1_set_vpp,
100 static struct resource voiceblue_flash_resource = {
101 .start = OMAP_CS0_PHYS,
102 .end = OMAP_CS0_PHYS + SZ_32M - 1,
103 .flags = IORESOURCE_MEM,
106 static struct platform_device voiceblue_flash_device = {
107 .name = "physmap-flash",
110 .platform_data = &voiceblue_flash_data,
113 .resource = &voiceblue_flash_resource,
116 static struct smc91x_platdata voiceblue_smc91x_info = {
117 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
118 .leda = RPC_LED_100_10,
119 .ledb = RPC_LED_TX_RX,
122 static struct resource voiceblue_smc91x_resources[] = {
124 .start = OMAP_CS2_PHYS + 0x300,
125 .end = OMAP_CS2_PHYS + 0x300 + 16,
126 .flags = IORESOURCE_MEM,
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 #define MACHINE_PANICED 1
161 #define MACHINE_REBOOTING 2
162 #define MACHINE_REBOOT 4
163 static unsigned long machine_state;
165 static int panic_event(struct notifier_block *this, unsigned long event,
168 if (test_and_set_bit(MACHINE_PANICED, &machine_state))
171 /* Flash power LED */
172 omap_writeb(0x78, OMAP_LPG1_LCR);
173 omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
178 static struct notifier_block panic_block = {
179 .notifier_call = panic_event,
182 static int __init voiceblue_setup(void)
184 if (!machine_is_voiceblue())
187 /* Setup panic notifier */
188 atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
192 postcore_initcall(voiceblue_setup);
194 static int wdt_gpio_state;
196 void voiceblue_wdt_enable(void)
198 gpio_direction_output(0, 0);
199 gpio_set_value(0, 1);
200 gpio_set_value(0, 0);
204 void voiceblue_wdt_disable(void)
206 gpio_set_value(0, 0);
207 gpio_set_value(0, 1);
208 gpio_set_value(0, 0);
209 gpio_direction_input(0);
212 void voiceblue_wdt_ping(void)
214 if (test_bit(MACHINE_REBOOT, &machine_state))
217 wdt_gpio_state = !wdt_gpio_state;
218 gpio_set_value(0, wdt_gpio_state);
221 static void voiceblue_restart(char mode, const char *cmd)
224 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
225 * "Global Software Reset Affects Traffic Controller Frequency".
227 if (cpu_is_omap5912()) {
228 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
229 omap_writew(0x8, ARM_RSTCT1);
232 set_bit(MACHINE_REBOOT, &machine_state);
233 voiceblue_wdt_enable();
237 EXPORT_SYMBOL(voiceblue_wdt_enable);
238 EXPORT_SYMBOL(voiceblue_wdt_disable);
239 EXPORT_SYMBOL(voiceblue_wdt_ping);
241 static void __init voiceblue_init(void)
243 /* mux pins for uarts */
244 omap_cfg_reg(UART1_TX);
245 omap_cfg_reg(UART1_RTS);
246 omap_cfg_reg(UART2_TX);
247 omap_cfg_reg(UART2_RTS);
248 omap_cfg_reg(UART3_TX);
249 omap_cfg_reg(UART3_RX);
252 gpio_request(0, "Watchdog");
254 gpio_request(7, "SMC91x reset");
255 gpio_direction_output(7, 1);
256 udelay(2); /* wait at least 100ns */
257 gpio_set_value(7, 0);
258 mdelay(50); /* 50ms until PHY ready */
259 /* smc91x interrupt pin */
260 gpio_request(8, "SMC91x irq");
262 gpio_request(6, "16C554 reset");
263 gpio_direction_output(6, 0);
264 /* 16C554 interrupt pins */
265 gpio_request(12, "16C554 irq");
266 gpio_request(13, "16C554 irq");
267 gpio_request(14, "16C554 irq");
268 gpio_request(15, "16C554 irq");
269 irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
270 irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
271 irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
272 irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
274 voiceblue_smc91x_resources[1].start = gpio_to_irq(8);
275 voiceblue_smc91x_resources[1].end = gpio_to_irq(8);
276 platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
277 omap_board_config = voiceblue_config;
278 omap_board_config_size = ARRAY_SIZE(voiceblue_config);
280 omap1_usb_init(&voiceblue_usb_config);
281 omap_register_i2c_bus(1, 100, NULL, 0);
283 /* There is a good chance board is going up, so enable power LED
284 * (it is connected through invertor) */
285 omap_writeb(0x00, OMAP_LPG1_LCR);
286 omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
289 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
290 /* Maintainer: Ladislav Michl <michl@2n.cz> */
291 .atag_offset = 0x100,
292 .map_io = omap15xx_map_io,
293 .init_early = omap1_init_early,
294 .reserve = omap_reserve,
295 .init_irq = omap1_init_irq,
296 .init_machine = voiceblue_init,
297 .timer = &omap1_timer,
298 .restart = voiceblue_restart,