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/init.h>
19 #include <linux/kernel.h>
20 #include <linux/notifier.h>
21 #include <linux/reboot.h>
22 #include <linux/serial_8250.h>
23 #include <linux/serial_reg.h>
25 #include <mach/hardware.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/flash.h>
29 #include <asm/mach/map.h>
31 #include <mach/common.h>
32 #include <mach/gpio.h>
37 static struct plat_serial8250_port voiceblue_ports
[] = {
39 .mapbase
= (unsigned long)(OMAP_CS1_PHYS
+ 0x40000),
40 .irq
= OMAP_GPIO_IRQ(12),
41 .flags
= UPF_BOOT_AUTOCONF
| UPF_IOREMAP
,
47 .mapbase
= (unsigned long)(OMAP_CS1_PHYS
+ 0x50000),
48 .irq
= OMAP_GPIO_IRQ(13),
49 .flags
= UPF_BOOT_AUTOCONF
| UPF_IOREMAP
,
55 .mapbase
= (unsigned long)(OMAP_CS1_PHYS
+ 0x60000),
56 .irq
= OMAP_GPIO_IRQ(14),
57 .flags
= UPF_BOOT_AUTOCONF
| UPF_IOREMAP
,
63 .mapbase
= (unsigned long)(OMAP_CS1_PHYS
+ 0x70000),
64 .irq
= OMAP_GPIO_IRQ(15),
65 .flags
= UPF_BOOT_AUTOCONF
| UPF_IOREMAP
,
73 static struct platform_device serial_device
= {
75 .id
= PLAT8250_DEV_PLATFORM1
,
77 .platform_data
= voiceblue_ports
,
81 static int __init
ext_uart_init(void)
83 return platform_device_register(&serial_device
);
85 arch_initcall(ext_uart_init
);
87 static struct flash_platform_data voiceblue_flash_data
= {
88 .map_name
= "cfi_probe",
92 static struct resource voiceblue_flash_resource
= {
93 .start
= OMAP_CS0_PHYS
,
94 .end
= OMAP_CS0_PHYS
+ SZ_32M
- 1,
95 .flags
= IORESOURCE_MEM
,
98 static struct platform_device voiceblue_flash_device
= {
102 .platform_data
= &voiceblue_flash_data
,
105 .resource
= &voiceblue_flash_resource
,
108 static struct resource voiceblue_smc91x_resources
[] = {
110 .start
= OMAP_CS2_PHYS
+ 0x300,
111 .end
= OMAP_CS2_PHYS
+ 0x300 + 16,
112 .flags
= IORESOURCE_MEM
,
115 .start
= OMAP_GPIO_IRQ(8),
116 .end
= OMAP_GPIO_IRQ(8),
117 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
121 static struct platform_device voiceblue_smc91x_device
= {
124 .num_resources
= ARRAY_SIZE(voiceblue_smc91x_resources
),
125 .resource
= voiceblue_smc91x_resources
,
128 static struct platform_device
*voiceblue_devices
[] __initdata
= {
129 &voiceblue_flash_device
,
130 &voiceblue_smc91x_device
,
133 static struct omap_usb_config voiceblue_usb_config __initdata
= {
142 static struct omap_mmc_config voiceblue_mmc_config __initdata
= {
150 static struct omap_uart_config voiceblue_uart_config __initdata
= {
151 .enabled_uarts
= ((1 << 0) | (1 << 1) | (1 << 2)),
154 static struct omap_board_config_kernel voiceblue_config
[] = {
155 { OMAP_TAG_USB
, &voiceblue_usb_config
},
156 { OMAP_TAG_MMC
, &voiceblue_mmc_config
},
157 { OMAP_TAG_UART
, &voiceblue_uart_config
},
160 static void __init
voiceblue_init_irq(void)
162 omap1_init_common_hw();
167 static void __init
voiceblue_init(void)
170 omap_request_gpio(0);
172 omap_request_gpio(7);
173 omap_set_gpio_direction(7, 0);
174 omap_set_gpio_dataout(7, 1);
175 udelay(2); /* wait at least 100ns */
176 omap_set_gpio_dataout(7, 0);
177 mdelay(50); /* 50ms until PHY ready */
178 /* smc91x interrupt pin */
179 omap_request_gpio(8);
181 omap_request_gpio(6);
182 omap_set_gpio_direction(6, 0);
183 omap_set_gpio_dataout(6, 0);
184 /* 16C554 interrupt pins */
185 omap_request_gpio(12);
186 omap_request_gpio(13);
187 omap_request_gpio(14);
188 omap_request_gpio(15);
189 set_irq_type(OMAP_GPIO_IRQ(12), IRQ_TYPE_EDGE_RISING
);
190 set_irq_type(OMAP_GPIO_IRQ(13), IRQ_TYPE_EDGE_RISING
);
191 set_irq_type(OMAP_GPIO_IRQ(14), IRQ_TYPE_EDGE_RISING
);
192 set_irq_type(OMAP_GPIO_IRQ(15), IRQ_TYPE_EDGE_RISING
);
194 platform_add_devices(voiceblue_devices
, ARRAY_SIZE(voiceblue_devices
));
195 omap_board_config
= voiceblue_config
;
196 omap_board_config_size
= ARRAY_SIZE(voiceblue_config
);
198 omap_register_i2c_bus(1, 100, NULL
, 0);
200 /* There is a good chance board is going up, so enable power LED
201 * (it is connected through invertor) */
202 omap_writeb(0x00, OMAP_LPG1_LCR
);
203 omap_writeb(0x00, OMAP_LPG1_PMR
); /* Disable clock */
206 static void __init
voiceblue_map_io(void)
208 omap1_map_common_io();
211 #define MACHINE_PANICED 1
212 #define MACHINE_REBOOTING 2
213 #define MACHINE_REBOOT 4
214 static unsigned long machine_state
;
216 static int panic_event(struct notifier_block
*this, unsigned long event
,
219 if (test_and_set_bit(MACHINE_PANICED
, &machine_state
))
222 /* Flash power LED */
223 omap_writeb(0x78, OMAP_LPG1_LCR
);
224 omap_writeb(0x01, OMAP_LPG1_PMR
); /* Enable clock */
229 static struct notifier_block panic_block
= {
230 .notifier_call
= panic_event
,
233 static int __init
voiceblue_setup(void)
235 /* Setup panic notifier */
236 atomic_notifier_chain_register(&panic_notifier_list
, &panic_block
);
240 postcore_initcall(voiceblue_setup
);
242 static int wdt_gpio_state
;
244 void voiceblue_wdt_enable(void)
246 omap_set_gpio_direction(0, 0);
247 omap_set_gpio_dataout(0, 0);
248 omap_set_gpio_dataout(0, 1);
249 omap_set_gpio_dataout(0, 0);
253 void voiceblue_wdt_disable(void)
255 omap_set_gpio_dataout(0, 0);
256 omap_set_gpio_dataout(0, 1);
257 omap_set_gpio_dataout(0, 0);
258 omap_set_gpio_direction(0, 1);
261 void voiceblue_wdt_ping(void)
263 if (test_bit(MACHINE_REBOOT
, &machine_state
))
266 wdt_gpio_state
= !wdt_gpio_state
;
267 omap_set_gpio_dataout(0, wdt_gpio_state
);
270 void voiceblue_reset(void)
272 set_bit(MACHINE_REBOOT
, &machine_state
);
273 voiceblue_wdt_enable();
277 EXPORT_SYMBOL(voiceblue_wdt_enable
);
278 EXPORT_SYMBOL(voiceblue_wdt_disable
);
279 EXPORT_SYMBOL(voiceblue_wdt_ping
);
281 MACHINE_START(VOICEBLUE
, "VoiceBlue OMAP5910")
282 /* Maintainer: Ladislav Michl <michl@2n.cz> */
283 .phys_io
= 0xfff00000,
284 .io_pg_offst
= ((0xfef00000) >> 18) & 0xfffc,
285 .boot_params
= 0x10000100,
286 .map_io
= voiceblue_map_io
,
287 .init_irq
= voiceblue_init_irq
,
288 .init_machine
= voiceblue_init
,
289 .timer
= &omap_timer
,