Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Tony Lindgren | dbdf9ced | 2005-07-10 19:58:11 +0100 | [diff] [blame] | 2 | * linux/arch/arm/mach-omap1/board-voiceblue.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 16 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 28 | #include <asm/mach/flash.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <asm/mach/map.h> |
| 30 | |
Tony Lindgren | d48af15 | 2005-07-10 19:58:17 +0100 | [diff] [blame] | 31 | #include <asm/arch/common.h> |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 32 | #include <asm/arch/gpio.h> |
| 33 | #include <asm/arch/mux.h> |
| 34 | #include <asm/arch/tc.h> |
| 35 | #include <asm/arch/usb.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
| 37 | extern void omap_init_time(void); |
| 38 | extern int omap_gpio_init(void); |
| 39 | |
| 40 | static 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 | |
| 76 | static struct platform_device serial_device = { |
| 77 | .name = "serial8250", |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 78 | .id = PLAT8250_DEV_PLATFORM1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | .dev = { |
| 80 | .platform_data = voiceblue_ports, |
| 81 | }, |
| 82 | }; |
| 83 | |
| 84 | static int __init ext_uart_init(void) |
| 85 | { |
| 86 | return platform_device_register(&serial_device); |
| 87 | } |
| 88 | arch_initcall(ext_uart_init); |
| 89 | |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 90 | static struct flash_platform_data voiceblue_flash_data = { |
| 91 | .map_name = "cfi_probe", |
| 92 | .width = 2, |
| 93 | }; |
| 94 | |
| 95 | static struct resource voiceblue_flash_resource = { |
| 96 | .start = OMAP_CS0_PHYS, |
| 97 | .end = OMAP_CS0_PHYS + SZ_32M - 1, |
| 98 | .flags = IORESOURCE_MEM, |
| 99 | }; |
| 100 | |
| 101 | static 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | static 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 | |
| 124 | static 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 | |
| 131 | static struct platform_device *voiceblue_devices[] __initdata = { |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 132 | &voiceblue_flash_device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | &voiceblue_smc91x_device, |
| 134 | }; |
| 135 | |
| 136 | static 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 | |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 145 | static 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 | |
Tony Lindgren | 3179a01 | 2005-11-10 14:26:48 +0000 | [diff] [blame] | 153 | static struct omap_uart_config voiceblue_uart_config __initdata = { |
| 154 | .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), |
| 155 | }; |
| 156 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | static struct omap_board_config_kernel voiceblue_config[] = { |
| 158 | { OMAP_TAG_USB, &voiceblue_usb_config }, |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 159 | { OMAP_TAG_MMC, &voiceblue_mmc_config }, |
Tony Lindgren | 3179a01 | 2005-11-10 14:26:48 +0000 | [diff] [blame] | 160 | { OMAP_TAG_UART, &voiceblue_uart_config }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | }; |
| 162 | |
| 163 | static void __init voiceblue_init_irq(void) |
| 164 | { |
Tony Lindgren | 87bd63f | 2006-02-08 22:06:46 +0000 | [diff] [blame] | 165 | omap1_init_common_hw(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | omap_init_irq(); |
| 167 | omap_gpio_init(); |
| 168 | } |
| 169 | |
| 170 | static void __init voiceblue_init(void) |
| 171 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Tony Lindgren | 3179a01 | 2005-11-10 14:26:48 +0000 | [diff] [blame] | 200 | omap_serial_init(); |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | } |
| 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | static void __init voiceblue_map_io(void) |
| 209 | { |
Tony Lindgren | 87bd63f | 2006-02-08 22:06:46 +0000 | [diff] [blame] | 210 | omap1_map_common_io(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | #define MACHINE_PANICED 1 |
| 214 | #define MACHINE_REBOOTING 2 |
| 215 | #define MACHINE_REBOOT 4 |
| 216 | static unsigned long machine_state; |
| 217 | |
| 218 | static 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 | |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 224 | /* Flash power LED */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | omap_writeb(0x78, OMAP_LPG1_LCR); |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 226 | omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
| 228 | return NOTIFY_DONE; |
| 229 | } |
| 230 | |
| 231 | static struct notifier_block panic_block = { |
| 232 | .notifier_call = panic_event, |
| 233 | }; |
| 234 | |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 235 | static int __init voiceblue_setup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | { |
| 237 | /* Setup panic notifier */ |
Alan Stern | e041c68 | 2006-03-27 01:16:30 -0800 | [diff] [blame] | 238 | atomic_notifier_chain_register(&panic_notifier_list, &panic_block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
| 240 | return 0; |
| 241 | } |
Tony Lindgren | 7c38cf0 | 2005-09-08 23:07:38 +0100 | [diff] [blame] | 242 | postcore_initcall(voiceblue_setup); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
| 244 | static int wdt_gpio_state; |
| 245 | |
| 246 | void 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 | |
| 255 | void 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 | |
| 263 | void 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 | |
| 272 | void voiceblue_reset(void) |
| 273 | { |
| 274 | set_bit(MACHINE_REBOOT, &machine_state); |
| 275 | voiceblue_wdt_enable(); |
| 276 | while (1) ; |
| 277 | } |
| 278 | |
| 279 | EXPORT_SYMBOL(voiceblue_wdt_enable); |
| 280 | EXPORT_SYMBOL(voiceblue_wdt_disable); |
| 281 | EXPORT_SYMBOL(voiceblue_wdt_ping); |
| 282 | |
| 283 | MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 284 | /* Maintainer: Ladislav Michl <michl@2n.cz> */ |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 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, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | MACHINE_END |