1/*
2 * linux/arch/arm/mach-omap1/board-voiceblue.c
3 *
4 * Modified from board-generic.c
5 *
6 * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
7 *
8 * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
9 *
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.
13 */
14
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>
24
25#include <asm/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>
30
31#include <asm/arch/common.h>
32#include <asm/arch/gpio.h>
33#include <asm/arch/mux.h>
34#include <asm/arch/tc.h>
35#include <asm/arch/usb.h>
36
37extern void omap_init_time(void);
38extern int omap_gpio_init(void);
39
40static struct plat_serial8250_port voiceblue_ports[] = {
41	{
42		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x40000),
43		.irq		= OMAP_GPIO_IRQ(12),
44		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
45		.iotype		= UPIO_MEM,
46		.regshift	= 1,
47		.uartclk	= 3686400,
48	},
49	{
50		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x50000),
51		.irq		= OMAP_GPIO_IRQ(13),
52		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
53		.iotype		= UPIO_MEM,
54		.regshift	= 1,
55		.uartclk	= 3686400,
56	},
57	{
58		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x60000),
59		.irq		= OMAP_GPIO_IRQ(14),
60		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
61		.iotype		= UPIO_MEM,
62		.regshift	= 1,
63		.uartclk	= 3686400,
64	},
65	{
66		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x70000),
67		.irq		= OMAP_GPIO_IRQ(15),
68		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
69		.iotype		= UPIO_MEM,
70		.regshift	= 1,
71		.uartclk	= 3686400,
72	},
73	{ },
74};
75
76static struct platform_device serial_device = {
77	.name			= "serial8250",
78	.id			= PLAT8250_DEV_PLATFORM1,
79	.dev			= {
80		.platform_data	= voiceblue_ports,
81	},
82};
83
84static int __init ext_uart_init(void)
85{
86	return platform_device_register(&serial_device);
87}
88arch_initcall(ext_uart_init);
89
90static struct flash_platform_data voiceblue_flash_data = {
91	.map_name	= "cfi_probe",
92	.width		= 2,
93};
94
95static struct resource voiceblue_flash_resource = {
96	.start	= OMAP_CS0_PHYS,
97	.end	= OMAP_CS0_PHYS + SZ_32M - 1,
98	.flags	= IORESOURCE_MEM,
99};
100
101static struct platform_device voiceblue_flash_device = {
102	.name		= "omapflash",
103	.id		= 0,
104	.dev		= {
105		.platform_data	= &voiceblue_flash_data,
106	},
107	.num_resources	= 1,
108	.resource	= &voiceblue_flash_resource,
109};
110
111static struct resource voiceblue_smc91x_resources[] = {
112	[0] = {
113		.start	= OMAP_CS2_PHYS + 0x300,
114		.end	= OMAP_CS2_PHYS + 0x300 + 16,
115		.flags	= IORESOURCE_MEM,
116	},
117	[1] = {
118		.start	= OMAP_GPIO_IRQ(8),
119		.end	= OMAP_GPIO_IRQ(8),
120		.flags	= IORESOURCE_IRQ,
121	},
122};
123
124static struct platform_device voiceblue_smc91x_device = {
125	.name		= "smc91x",
126	.id		= 0,
127	.num_resources	= ARRAY_SIZE(voiceblue_smc91x_resources),
128	.resource	= voiceblue_smc91x_resources,
129};
130
131static struct platform_device *voiceblue_devices[] __initdata = {
132	&voiceblue_flash_device,
133	&voiceblue_smc91x_device,
134};
135
136static struct omap_usb_config voiceblue_usb_config __initdata = {
137	.hmc_mode	= 3,
138	.register_host	= 1,
139	.register_dev   = 1,
140	.pins[0]	= 2,
141	.pins[1]	= 6,
142	.pins[2]	= 6,
143};
144
145static struct omap_mmc_config voiceblue_mmc_config __initdata = {
146	.mmc[0] = {
147		.enabled	= 1,
148		.power_pin	= 2,
149		.switch_pin	= -1,
150	},
151};
152
153static struct omap_uart_config voiceblue_uart_config __initdata = {
154	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
155};
156
157static struct omap_board_config_kernel voiceblue_config[] = {
158	{ OMAP_TAG_USB,  &voiceblue_usb_config },
159	{ OMAP_TAG_MMC,  &voiceblue_mmc_config },
160	{ OMAP_TAG_UART, &voiceblue_uart_config },
161};
162
163static void __init voiceblue_init_irq(void)
164{
165	omap1_init_common_hw();
166	omap_init_irq();
167	omap_gpio_init();
168}
169
170static void __init voiceblue_init(void)
171{
172	/* Watchdog */
173	omap_request_gpio(0);
174	/* smc91x reset */
175	omap_request_gpio(7);
176	omap_set_gpio_direction(7, 0);
177	omap_set_gpio_dataout(7, 1);
178	udelay(2);	/* wait at least 100ns */
179	omap_set_gpio_dataout(7, 0);
180	mdelay(50);	/* 50ms until PHY ready */
181	/* smc91x interrupt pin */
182	omap_request_gpio(8);
183	/* 16C554 reset*/
184	omap_request_gpio(6);
185	omap_set_gpio_direction(6, 0);
186	omap_set_gpio_dataout(6, 0);
187	/* 16C554 interrupt pins */
188	omap_request_gpio(12);
189	omap_request_gpio(13);
190	omap_request_gpio(14);
191	omap_request_gpio(15);
192	set_irq_type(OMAP_GPIO_IRQ(12), IRQT_RISING);
193	set_irq_type(OMAP_GPIO_IRQ(13), IRQT_RISING);
194	set_irq_type(OMAP_GPIO_IRQ(14), IRQT_RISING);
195	set_irq_type(OMAP_GPIO_IRQ(15), IRQT_RISING);
196
197	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
198	omap_board_config = voiceblue_config;
199	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
200	omap_serial_init();
201
202	/* There is a good chance board is going up, so enable power LED
203	 * (it is connected through invertor) */
204	omap_writeb(0x00, OMAP_LPG1_LCR);
205	omap_writeb(0x00, OMAP_LPG1_PMR);	/* Disable clock */
206}
207
208static void __init voiceblue_map_io(void)
209{
210	omap1_map_common_io();
211}
212
213#define MACHINE_PANICED		1
214#define MACHINE_REBOOTING	2
215#define MACHINE_REBOOT		4
216static unsigned long machine_state;
217
218static int panic_event(struct notifier_block *this, unsigned long event,
219	 void *ptr)
220{
221	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
222		return NOTIFY_DONE;
223
224	/* Flash power LED */
225	omap_writeb(0x78, OMAP_LPG1_LCR);
226	omap_writeb(0x01, OMAP_LPG1_PMR);	/* Enable clock */
227
228	return NOTIFY_DONE;
229}
230
231static struct notifier_block panic_block = {
232	.notifier_call	= panic_event,
233};
234
235static int __init voiceblue_setup(void)
236{
237	/* Setup panic notifier */
238	notifier_chain_register(&panic_notifier_list, &panic_block);
239
240	return 0;
241}
242postcore_initcall(voiceblue_setup);
243
244static int wdt_gpio_state;
245
246void voiceblue_wdt_enable(void)
247{
248	omap_set_gpio_direction(0, 0);
249	omap_set_gpio_dataout(0, 0);
250	omap_set_gpio_dataout(0, 1);
251	omap_set_gpio_dataout(0, 0);
252	wdt_gpio_state = 0;
253}
254
255void voiceblue_wdt_disable(void)
256{
257	omap_set_gpio_dataout(0, 0);
258	omap_set_gpio_dataout(0, 1);
259	omap_set_gpio_dataout(0, 0);
260	omap_set_gpio_direction(0, 1);
261}
262
263void voiceblue_wdt_ping(void)
264{
265	if (test_bit(MACHINE_REBOOT, &machine_state))
266		return;
267
268	wdt_gpio_state = !wdt_gpio_state;
269	omap_set_gpio_dataout(0, wdt_gpio_state);
270}
271
272void voiceblue_reset(void)
273{
274	set_bit(MACHINE_REBOOT, &machine_state);
275	voiceblue_wdt_enable();
276	while (1) ;
277}
278
279EXPORT_SYMBOL(voiceblue_wdt_enable);
280EXPORT_SYMBOL(voiceblue_wdt_disable);
281EXPORT_SYMBOL(voiceblue_wdt_ping);
282
283MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
284	/* Maintainer: Ladislav Michl <michl@2n.cz> */
285	.phys_io	= 0xfff00000,
286	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
287	.boot_params	= 0x10000100,
288	.map_io		= voiceblue_map_io,
289	.init_irq	= voiceblue_init_irq,
290	.init_machine	= voiceblue_init,
291	.timer		= &omap_timer,
292MACHINE_END
293