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-rw-r--r--arch/arm/mach-omap1/board-voiceblue.c257
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diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
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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/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/map.h>
29
30#include <asm/arch/gpio.h>
31#include <asm/arch/tc.h>
32#include <asm/arch/mux.h>
33#include <asm/arch/usb.h>
34#include <asm/arch/common.h>
35
36extern void omap_init_time(void);
37extern int omap_gpio_init(void);
38
39static struct plat_serial8250_port voiceblue_ports[] = {
40 {
41 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
42 .irq = OMAP_GPIO_IRQ(12),
43 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
44 .iotype = UPIO_MEM,
45 .regshift = 1,
46 .uartclk = 3686400,
47 },
48 {
49 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
50 .irq = OMAP_GPIO_IRQ(13),
51 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
52 .iotype = UPIO_MEM,
53 .regshift = 1,
54 .uartclk = 3686400,
55 },
56 {
57 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
58 .irq = OMAP_GPIO_IRQ(14),
59 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
60 .iotype = UPIO_MEM,
61 .regshift = 1,
62 .uartclk = 3686400,
63 },
64 {
65 .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
66 .irq = OMAP_GPIO_IRQ(15),
67 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
68 .iotype = UPIO_MEM,
69 .regshift = 1,
70 .uartclk = 3686400,
71 },
72 { },
73};
74
75static struct platform_device serial_device = {
76 .name = "serial8250",
77 .id = 1,
78 .dev = {
79 .platform_data = voiceblue_ports,
80 },
81};
82
83static int __init ext_uart_init(void)
84{
85 return platform_device_register(&serial_device);
86}
87arch_initcall(ext_uart_init);
88
89static struct resource voiceblue_smc91x_resources[] = {
90 [0] = {
91 .start = OMAP_CS2_PHYS + 0x300,
92 .end = OMAP_CS2_PHYS + 0x300 + 16,
93 .flags = IORESOURCE_MEM,
94 },
95 [1] = {
96 .start = OMAP_GPIO_IRQ(8),
97 .end = OMAP_GPIO_IRQ(8),
98 .flags = IORESOURCE_IRQ,
99 },
100};
101
102static struct platform_device voiceblue_smc91x_device = {
103 .name = "smc91x",
104 .id = 0,
105 .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
106 .resource = voiceblue_smc91x_resources,
107};
108
109static struct platform_device *voiceblue_devices[] __initdata = {
110 &voiceblue_smc91x_device,
111};
112
113static struct omap_usb_config voiceblue_usb_config __initdata = {
114 .hmc_mode = 3,
115 .register_host = 1,
116 .register_dev = 1,
117 .pins[0] = 2,
118 .pins[1] = 6,
119 .pins[2] = 6,
120};
121
122static struct omap_board_config_kernel voiceblue_config[] = {
123 { OMAP_TAG_USB, &voiceblue_usb_config },
124};
125
126static void __init voiceblue_init_irq(void)
127{
128 omap_init_irq();
129 omap_gpio_init();
130}
131
132static void __init voiceblue_init(void)
133{
134 /* There is a good chance board is going up, so enable Power LED
135 * (it is connected through invertor) */
136 omap_writeb(0x00, OMAP_LPG1_LCR);
137 /* Watchdog */
138 omap_request_gpio(0);
139 /* smc91x reset */
140 omap_request_gpio(7);
141 omap_set_gpio_direction(7, 0);
142 omap_set_gpio_dataout(7, 1);
143 udelay(2); /* wait at least 100ns */
144 omap_set_gpio_dataout(7, 0);
145 mdelay(50); /* 50ms until PHY ready */
146 /* smc91x interrupt pin */
147 omap_request_gpio(8);
148 omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE);
149 /* 16C554 reset*/
150 omap_request_gpio(6);
151 omap_set_gpio_direction(6, 0);
152 omap_set_gpio_dataout(6, 0);
153 /* 16C554 interrupt pins */
154 omap_request_gpio(12);
155 omap_request_gpio(13);
156 omap_request_gpio(14);
157 omap_request_gpio(15);
158 omap_set_gpio_edge_ctrl(12, OMAP_GPIO_RISING_EDGE);
159 omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE);
160 omap_set_gpio_edge_ctrl(14, OMAP_GPIO_RISING_EDGE);
161 omap_set_gpio_edge_ctrl(15, OMAP_GPIO_RISING_EDGE);
162
163 platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
164 omap_board_config = voiceblue_config;
165 omap_board_config_size = ARRAY_SIZE(voiceblue_config);
166}
167
168static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};
169
170static void __init voiceblue_map_io(void)
171{
172 omap_map_common_io();
173 omap_serial_init(omap_serial_ports);
174}
175
176#define MACHINE_PANICED 1
177#define MACHINE_REBOOTING 2
178#define MACHINE_REBOOT 4
179static unsigned long machine_state;
180
181static int panic_event(struct notifier_block *this, unsigned long event,
182 void *ptr)
183{
184 if (test_and_set_bit(MACHINE_PANICED, &machine_state))
185 return NOTIFY_DONE;
186
187 /* Flash Power LED
188 * (TODO: Enable clock right way (enabled in bootloader already)) */
189 omap_writeb(0x78, OMAP_LPG1_LCR);
190
191 return NOTIFY_DONE;
192}
193
194static struct notifier_block panic_block = {
195 .notifier_call = panic_event,
196};
197
198static int __init setup_notifier(void)
199{
200 /* Setup panic notifier */
201 notifier_chain_register(&panic_notifier_list, &panic_block);
202
203 return 0;
204}
205
206postcore_initcall(setup_notifier);
207
208static int wdt_gpio_state;
209
210void voiceblue_wdt_enable(void)
211{
212 omap_set_gpio_direction(0, 0);
213 omap_set_gpio_dataout(0, 0);
214 omap_set_gpio_dataout(0, 1);
215 omap_set_gpio_dataout(0, 0);
216 wdt_gpio_state = 0;
217}
218
219void voiceblue_wdt_disable(void)
220{
221 omap_set_gpio_dataout(0, 0);
222 omap_set_gpio_dataout(0, 1);
223 omap_set_gpio_dataout(0, 0);
224 omap_set_gpio_direction(0, 1);
225}
226
227void voiceblue_wdt_ping(void)
228{
229 if (test_bit(MACHINE_REBOOT, &machine_state))
230 return;
231
232 wdt_gpio_state = !wdt_gpio_state;
233 omap_set_gpio_dataout(0, wdt_gpio_state);
234}
235
236void voiceblue_reset(void)
237{
238 set_bit(MACHINE_REBOOT, &machine_state);
239 voiceblue_wdt_enable();
240 while (1) ;
241}
242
243EXPORT_SYMBOL(voiceblue_wdt_enable);
244EXPORT_SYMBOL(voiceblue_wdt_disable);
245EXPORT_SYMBOL(voiceblue_wdt_ping);
246
247MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
248 /* Maintainer: Ladislav Michl <michl@2n.cz> */
249 .phys_ram = 0x10000000,
250 .phys_io = 0xfff00000,
251 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
252 .boot_params = 0x10000100,
253 .map_io = voiceblue_map_io,
254 .init_irq = voiceblue_init_irq,
255 .init_machine = voiceblue_init,
256 .timer = &omap_timer,
257MACHINE_END
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-07 12:27:11 -0500