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1da177e4 | 1 | /* |
dbdf9ced | 2 | * linux/arch/arm/mach-omap1/board-voiceblue.c |
1da177e4 LT |
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> | |
2f8163ba | 16 | #include <linux/gpio.h> |
d052d1be | 17 | #include <linux/platform_device.h> |
1da177e4 | 18 | #include <linux/interrupt.h> |
652bcd8f | 19 | #include <linux/irq.h> |
1da177e4 LT |
20 | #include <linux/init.h> |
21 | #include <linux/kernel.h> | |
561b036a | 22 | #include <linux/mtd/physmap.h> |
1da177e4 LT |
23 | #include <linux/notifier.h> |
24 | #include <linux/reboot.h> | |
25 | #include <linux/serial_8250.h> | |
26 | #include <linux/serial_reg.h> | |
3bc48014 | 27 | #include <linux/smc91x.h> |
dc28094b | 28 | #include <linux/export.h> |
1da177e4 | 29 | |
1da177e4 LT |
30 | #include <asm/mach-types.h> |
31 | #include <asm/mach/arch.h> | |
32 | #include <asm/mach/map.h> | |
33 | ||
c510da1c | 34 | #include <mach/board-voiceblue.h> |
578fad4d | 35 | #include <mach/flash.h> |
70c494c3 | 36 | #include <mach/mux.h> |
54b693d4 | 37 | #include <mach/tc.h> |
1da177e4 | 38 | |
2e3ee9f4 | 39 | #include <mach/hardware.h> |
b924b204 | 40 | #include <mach/usb.h> |
2e3ee9f4 TL |
41 | |
42 | #include "common.h" | |
43 | ||
1da177e4 LT |
44 | static struct plat_serial8250_port voiceblue_ports[] = { |
45 | { | |
46 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000), | |
1da177e4 LT |
47 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, |
48 | .iotype = UPIO_MEM, | |
49 | .regshift = 1, | |
50 | .uartclk = 3686400, | |
51 | }, | |
52 | { | |
53 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000), | |
1da177e4 LT |
54 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, |
55 | .iotype = UPIO_MEM, | |
56 | .regshift = 1, | |
57 | .uartclk = 3686400, | |
58 | }, | |
59 | { | |
60 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000), | |
1da177e4 LT |
61 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, |
62 | .iotype = UPIO_MEM, | |
63 | .regshift = 1, | |
64 | .uartclk = 3686400, | |
65 | }, | |
66 | { | |
67 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000), | |
1da177e4 LT |
68 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, |
69 | .iotype = UPIO_MEM, | |
70 | .regshift = 1, | |
71 | .uartclk = 3686400, | |
72 | }, | |
73 | { }, | |
74 | }; | |
75 | ||
76 | static struct platform_device serial_device = { | |
77 | .name = "serial8250", | |
6df29deb | 78 | .id = PLAT8250_DEV_PLATFORM1, |
1da177e4 LT |
79 | }; |
80 | ||
81 | static int __init ext_uart_init(void) | |
82 | { | |
7f9187c2 TL |
83 | if (!machine_is_voiceblue()) |
84 | return -ENODEV; | |
85 | ||
46a0a540 TKD |
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; | |
1da177e4 LT |
91 | return platform_device_register(&serial_device); |
92 | } | |
93 | arch_initcall(ext_uart_init); | |
94 | ||
561b036a | 95 | static struct physmap_flash_data voiceblue_flash_data = { |
7c38cf02 | 96 | .width = 2, |
561b036a | 97 | .set_vpp = omap1_set_vpp, |
7c38cf02 TL |
98 | }; |
99 | ||
100 | static struct resource voiceblue_flash_resource = { | |
101 | .start = OMAP_CS0_PHYS, | |
102 | .end = OMAP_CS0_PHYS + SZ_32M - 1, | |
103 | .flags = IORESOURCE_MEM, | |
104 | }; | |
105 | ||
106 | static struct platform_device voiceblue_flash_device = { | |
561b036a | 107 | .name = "physmap-flash", |
7c38cf02 TL |
108 | .id = 0, |
109 | .dev = { | |
110 | .platform_data = &voiceblue_flash_data, | |
111 | }, | |
112 | .num_resources = 1, | |
113 | .resource = &voiceblue_flash_resource, | |
114 | }; | |
115 | ||
3bc48014 LM |
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, | |
120 | }; | |
121 | ||
1da177e4 LT |
122 | static struct resource voiceblue_smc91x_resources[] = { |
123 | [0] = { | |
124 | .start = OMAP_CS2_PHYS + 0x300, | |
125 | .end = OMAP_CS2_PHYS + 0x300 + 16, | |
126 | .flags = IORESOURCE_MEM, | |
127 | }, | |
128 | [1] = { | |
e7b3dc7e | 129 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
1da177e4 LT |
130 | }, |
131 | }; | |
132 | ||
133 | static struct platform_device voiceblue_smc91x_device = { | |
134 | .name = "smc91x", | |
135 | .id = 0, | |
3bc48014 LM |
136 | .dev = { |
137 | .platform_data = &voiceblue_smc91x_info, | |
138 | }, | |
1da177e4 LT |
139 | .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources), |
140 | .resource = voiceblue_smc91x_resources, | |
141 | }; | |
142 | ||
143 | static struct platform_device *voiceblue_devices[] __initdata = { | |
7c38cf02 | 144 | &voiceblue_flash_device, |
1da177e4 LT |
145 | &voiceblue_smc91x_device, |
146 | }; | |
147 | ||
148 | static struct omap_usb_config voiceblue_usb_config __initdata = { | |
149 | .hmc_mode = 3, | |
150 | .register_host = 1, | |
151 | .register_dev = 1, | |
152 | .pins[0] = 2, | |
153 | .pins[1] = 6, | |
154 | .pins[2] = 6, | |
155 | }; | |
156 | ||
1da177e4 LT |
157 | #define MACHINE_PANICED 1 |
158 | #define MACHINE_REBOOTING 2 | |
159 | #define MACHINE_REBOOT 4 | |
160 | static unsigned long machine_state; | |
161 | ||
162 | static int panic_event(struct notifier_block *this, unsigned long event, | |
163 | void *ptr) | |
164 | { | |
165 | if (test_and_set_bit(MACHINE_PANICED, &machine_state)) | |
166 | return NOTIFY_DONE; | |
167 | ||
7c38cf02 | 168 | /* Flash power LED */ |
1da177e4 | 169 | omap_writeb(0x78, OMAP_LPG1_LCR); |
7c38cf02 | 170 | omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */ |
1da177e4 LT |
171 | |
172 | return NOTIFY_DONE; | |
173 | } | |
174 | ||
175 | static struct notifier_block panic_block = { | |
176 | .notifier_call = panic_event, | |
177 | }; | |
178 | ||
7c38cf02 | 179 | static int __init voiceblue_setup(void) |
1da177e4 | 180 | { |
7f9187c2 TL |
181 | if (!machine_is_voiceblue()) |
182 | return -ENODEV; | |
183 | ||
1da177e4 | 184 | /* Setup panic notifier */ |
a524626b | 185 | atomic_notifier_chain_register(&panic_notifier_list, &panic_block); |
1da177e4 LT |
186 | |
187 | return 0; | |
188 | } | |
7c38cf02 | 189 | postcore_initcall(voiceblue_setup); |
1da177e4 LT |
190 | |
191 | static int wdt_gpio_state; | |
192 | ||
193 | void voiceblue_wdt_enable(void) | |
194 | { | |
e918edf7 | 195 | gpio_direction_output(0, 0); |
0b84b5ca DB |
196 | gpio_set_value(0, 1); |
197 | gpio_set_value(0, 0); | |
1da177e4 LT |
198 | wdt_gpio_state = 0; |
199 | } | |
200 | ||
201 | void voiceblue_wdt_disable(void) | |
202 | { | |
0b84b5ca DB |
203 | gpio_set_value(0, 0); |
204 | gpio_set_value(0, 1); | |
205 | gpio_set_value(0, 0); | |
40e3925b | 206 | gpio_direction_input(0); |
1da177e4 LT |
207 | } |
208 | ||
209 | void voiceblue_wdt_ping(void) | |
210 | { | |
211 | if (test_bit(MACHINE_REBOOT, &machine_state)) | |
212 | return; | |
213 | ||
214 | wdt_gpio_state = !wdt_gpio_state; | |
0b84b5ca | 215 | gpio_set_value(0, wdt_gpio_state); |
1da177e4 LT |
216 | } |
217 | ||
baa95883 | 218 | static void voiceblue_restart(char mode, const char *cmd) |
1da177e4 | 219 | { |
ee54dba9 RKAL |
220 | /* |
221 | * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28 | |
222 | * "Global Software Reset Affects Traffic Controller Frequency". | |
223 | */ | |
224 | if (cpu_is_omap5912()) { | |
225 | omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL); | |
226 | omap_writew(0x8, ARM_RSTCT1); | |
227 | } | |
228 | ||
1da177e4 LT |
229 | set_bit(MACHINE_REBOOT, &machine_state); |
230 | voiceblue_wdt_enable(); | |
231 | while (1) ; | |
232 | } | |
233 | ||
234 | EXPORT_SYMBOL(voiceblue_wdt_enable); | |
235 | EXPORT_SYMBOL(voiceblue_wdt_disable); | |
236 | EXPORT_SYMBOL(voiceblue_wdt_ping); | |
237 | ||
ee54dba9 RKAL |
238 | static void __init voiceblue_init(void) |
239 | { | |
240 | /* mux pins for uarts */ | |
241 | omap_cfg_reg(UART1_TX); | |
242 | omap_cfg_reg(UART1_RTS); | |
243 | omap_cfg_reg(UART2_TX); | |
244 | omap_cfg_reg(UART2_RTS); | |
245 | omap_cfg_reg(UART3_TX); | |
246 | omap_cfg_reg(UART3_RX); | |
247 | ||
248 | /* Watchdog */ | |
249 | gpio_request(0, "Watchdog"); | |
250 | /* smc91x reset */ | |
251 | gpio_request(7, "SMC91x reset"); | |
252 | gpio_direction_output(7, 1); | |
253 | udelay(2); /* wait at least 100ns */ | |
254 | gpio_set_value(7, 0); | |
255 | mdelay(50); /* 50ms until PHY ready */ | |
256 | /* smc91x interrupt pin */ | |
257 | gpio_request(8, "SMC91x irq"); | |
258 | /* 16C554 reset*/ | |
259 | gpio_request(6, "16C554 reset"); | |
260 | gpio_direction_output(6, 0); | |
261 | /* 16C554 interrupt pins */ | |
262 | gpio_request(12, "16C554 irq"); | |
263 | gpio_request(13, "16C554 irq"); | |
264 | gpio_request(14, "16C554 irq"); | |
265 | gpio_request(15, "16C554 irq"); | |
6845664a TG |
266 | irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING); |
267 | irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING); | |
268 | irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING); | |
269 | irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING); | |
ee54dba9 | 270 | |
46a0a540 TKD |
271 | voiceblue_smc91x_resources[1].start = gpio_to_irq(8); |
272 | voiceblue_smc91x_resources[1].end = gpio_to_irq(8); | |
ee54dba9 | 273 | platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices)); |
ee54dba9 RKAL |
274 | omap_serial_init(); |
275 | omap1_usb_init(&voiceblue_usb_config); | |
276 | omap_register_i2c_bus(1, 100, NULL, 0); | |
277 | ||
278 | /* There is a good chance board is going up, so enable power LED | |
279 | * (it is connected through invertor) */ | |
280 | omap_writeb(0x00, OMAP_LPG1_LCR); | |
281 | omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */ | |
ee54dba9 RKAL |
282 | } |
283 | ||
1da177e4 | 284 | MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910") |
e9dea0c6 | 285 | /* Maintainer: Ladislav Michl <michl@2n.cz> */ |
246e389d | 286 | .atag_offset = 0x100, |
7b88e62f TL |
287 | .map_io = omap15xx_map_io, |
288 | .init_early = omap1_init_early, | |
7b88e62f | 289 | .init_irq = omap1_init_irq, |
e9dea0c6 | 290 | .init_machine = voiceblue_init, |
82c3bd03 | 291 | .init_late = omap1_init_late, |
6bb27d73 | 292 | .init_time = omap1_timer_init, |
baa95883 | 293 | .restart = voiceblue_restart, |
1da177e4 | 294 | MACHINE_END |