1 /* 2 * linux/arch/arm/mach-omap1/board-nokia770.c 3 * 4 * Modified from board-generic.c 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #include <linux/kernel.h> 12 #include <linux/init.h> 13 #include <linux/platform_device.h> 14 #include <linux/input.h> 15 #include <linux/clk.h> 16 17 #include <linux/spi/spi.h> 18 #include <linux/spi/ads7846.h> 19 #include <linux/workqueue.h> 20 #include <linux/delay.h> 21 22 #include <asm/hardware.h> 23 #include <asm/mach-types.h> 24 #include <asm/mach/arch.h> 25 #include <asm/mach/map.h> 26 27 #include <asm/arch/gpio.h> 28 #include <asm/arch/mux.h> 29 #include <asm/arch/usb.h> 30 #include <asm/arch/board.h> 31 #include <asm/arch/keypad.h> 32 #include <asm/arch/common.h> 33 #include <asm/arch/dsp_common.h> 34 #include <asm/arch/aic23.h> 35 #include <asm/arch/gpio.h> 36 #include <asm/arch/omapfb.h> 37 #include <asm/arch/lcd_mipid.h> 38 39 #include "../plat-omap/dsp/dsp_common.h" 40 41 #define ADS7846_PENDOWN_GPIO 15 42 43 static void __init omap_nokia770_init_irq(void) 44 { 45 /* On Nokia 770, the SleepX signal is masked with an 46 * MPUIO line by default. It has to be unmasked for it 47 * to become functional */ 48 49 /* SleepX mask direction */ 50 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008); 51 /* Unmask SleepX signal */ 52 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004); 53 54 omap1_init_common_hw(); 55 omap_init_irq(); 56 } 57 58 static int nokia770_keymap[] = { 59 KEY(0, 1, GROUP_0 | KEY_UP), 60 KEY(0, 2, GROUP_1 | KEY_F5), 61 KEY(1, 0, GROUP_0 | KEY_LEFT), 62 KEY(1, 1, GROUP_0 | KEY_ENTER), 63 KEY(1, 2, GROUP_0 | KEY_RIGHT), 64 KEY(2, 0, GROUP_1 | KEY_ESC), 65 KEY(2, 1, GROUP_0 | KEY_DOWN), 66 KEY(2, 2, GROUP_1 | KEY_F4), 67 KEY(3, 0, GROUP_2 | KEY_F7), 68 KEY(3, 1, GROUP_2 | KEY_F8), 69 KEY(3, 2, GROUP_2 | KEY_F6), 70 0 71 }; 72 73 static struct resource nokia770_kp_resources[] = { 74 [0] = { 75 .start = INT_KEYBOARD, 76 .end = INT_KEYBOARD, 77 .flags = IORESOURCE_IRQ, 78 }, 79 }; 80 81 static struct omap_kp_platform_data nokia770_kp_data = { 82 .rows = 8, 83 .cols = 8, 84 .keymap = nokia770_keymap, 85 .keymapsize = ARRAY_SIZE(nokia770_keymap), 86 .delay = 4, 87 }; 88 89 static struct platform_device nokia770_kp_device = { 90 .name = "omap-keypad", 91 .id = -1, 92 .dev = { 93 .platform_data = &nokia770_kp_data, 94 }, 95 .num_resources = ARRAY_SIZE(nokia770_kp_resources), 96 .resource = nokia770_kp_resources, 97 }; 98 99 static struct platform_device *nokia770_devices[] __initdata = { 100 &nokia770_kp_device, 101 }; 102 103 static void mipid_shutdown(struct mipid_platform_data *pdata) 104 { 105 if (pdata->nreset_gpio != -1) { 106 printk(KERN_INFO "shutdown LCD\n"); 107 omap_set_gpio_dataout(pdata->nreset_gpio, 0); 108 msleep(120); 109 } 110 } 111 112 static struct mipid_platform_data nokia770_mipid_platform_data = { 113 .shutdown = mipid_shutdown, 114 }; 115 116 static void mipid_dev_init(void) 117 { 118 const struct omap_lcd_config *conf; 119 120 conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config); 121 if (conf != NULL) { 122 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio; 123 nokia770_mipid_platform_data.data_lines = conf->data_lines; 124 } 125 } 126 127 static void ads7846_dev_init(void) 128 { 129 if (omap_request_gpio(ADS7846_PENDOWN_GPIO) < 0) 130 printk(KERN_ERR "can't get ads7846 pen down GPIO\n"); 131 } 132 133 static int ads7846_get_pendown_state(void) 134 { 135 return !omap_get_gpio_datain(ADS7846_PENDOWN_GPIO); 136 } 137 138 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = { 139 .x_max = 0x0fff, 140 .y_max = 0x0fff, 141 .x_plate_ohms = 180, 142 .pressure_max = 255, 143 .debounce_max = 10, 144 .debounce_tol = 3, 145 .debounce_rep = 1, 146 .get_pendown_state = ads7846_get_pendown_state, 147 }; 148 149 static struct spi_board_info nokia770_spi_board_info[] __initdata = { 150 [0] = { 151 .modalias = "lcd_mipid", 152 .bus_num = 2, 153 .chip_select = 3, 154 .max_speed_hz = 12000000, 155 .platform_data = &nokia770_mipid_platform_data, 156 }, 157 [1] = { 158 .modalias = "ads7846", 159 .bus_num = 2, 160 .chip_select = 0, 161 .max_speed_hz = 2500000, 162 .irq = OMAP_GPIO_IRQ(15), 163 .platform_data = &nokia770_ads7846_platform_data, 164 }, 165 }; 166 167 168 /* assume no Mini-AB port */ 169 170 static struct omap_usb_config nokia770_usb_config __initdata = { 171 .otg = 1, 172 .register_host = 1, 173 .register_dev = 1, 174 .hmc_mode = 16, 175 .pins[0] = 6, 176 }; 177 178 static struct omap_mmc_config nokia770_mmc_config __initdata = { 179 .mmc[0] = { 180 .enabled = 0, 181 .wire4 = 0, 182 .wp_pin = -1, 183 .power_pin = -1, 184 .switch_pin = -1, 185 }, 186 .mmc[1] = { 187 .enabled = 0, 188 .wire4 = 0, 189 .wp_pin = -1, 190 .power_pin = -1, 191 .switch_pin = -1, 192 }, 193 }; 194 195 static struct omap_board_config_kernel nokia770_config[] = { 196 { OMAP_TAG_USB, NULL }, 197 { OMAP_TAG_MMC, &nokia770_mmc_config }, 198 }; 199 200 #if defined(CONFIG_OMAP_DSP) 201 /* 202 * audio power control 203 */ 204 #define HEADPHONE_GPIO 14 205 #define AMPLIFIER_CTRL_GPIO 58 206 207 static struct clk *dspxor_ck; 208 static DECLARE_MUTEX(audio_pwr_sem); 209 /* 210 * audio_pwr_state 211 * +--+-------------------------+---------------------------------------+ 212 * |-1|down |power-up request -> 0 | 213 * +--+-------------------------+---------------------------------------+ 214 * | 0|up |power-down(1) request -> 1 | 215 * | | |power-down(2) request -> (ignore) | 216 * +--+-------------------------+---------------------------------------+ 217 * | 1|up, |power-up request -> 0 | 218 * | |received down(1) request |power-down(2) request -> -1 | 219 * +--+-------------------------+---------------------------------------+ 220 */ 221 static int audio_pwr_state = -1; 222 223 /* 224 * audio_pwr_up / down should be called under audio_pwr_sem 225 */ 226 static void nokia770_audio_pwr_up(void) 227 { 228 clk_enable(dspxor_ck); 229 230 /* Turn on codec */ 231 aic23_power_up(); 232 233 if (omap_get_gpio_datain(HEADPHONE_GPIO)) 234 /* HP not connected, turn on amplifier */ 235 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1); 236 else 237 /* HP connected, do not turn on amplifier */ 238 printk("HP connected\n"); 239 } 240 241 static void codec_delayed_power_down(struct work_struct *work) 242 { 243 down(&audio_pwr_sem); 244 if (audio_pwr_state == -1) 245 aic23_power_down(); 246 clk_disable(dspxor_ck); 247 up(&audio_pwr_sem); 248 } 249 250 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down); 251 252 static void nokia770_audio_pwr_down(void) 253 { 254 /* Turn off amplifier */ 255 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0); 256 257 /* Turn off codec: schedule delayed work */ 258 schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */ 259 } 260 261 static int 262 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage) 263 { 264 down(&audio_pwr_sem); 265 if (audio_pwr_state == -1) 266 nokia770_audio_pwr_up(); 267 /* force audio_pwr_state = 0, even if it was 1. */ 268 audio_pwr_state = 0; 269 up(&audio_pwr_sem); 270 return 0; 271 } 272 273 static int 274 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage) 275 { 276 down(&audio_pwr_sem); 277 switch (stage) { 278 case 1: 279 if (audio_pwr_state == 0) 280 audio_pwr_state = 1; 281 break; 282 case 2: 283 if (audio_pwr_state == 1) { 284 nokia770_audio_pwr_down(); 285 audio_pwr_state = -1; 286 } 287 break; 288 } 289 up(&audio_pwr_sem); 290 return 0; 291 } 292 293 static struct dsp_kfunc_device nokia770_audio_device = { 294 .name = "audio", 295 .type = DSP_KFUNC_DEV_TYPE_AUDIO, 296 .enable = nokia770_audio_pwr_up_request, 297 .disable = nokia770_audio_pwr_down_request, 298 }; 299 300 static __init int omap_dsp_init(void) 301 { 302 int ret; 303 304 dspxor_ck = clk_get(0, "dspxor_ck"); 305 if (IS_ERR(dspxor_ck)) { 306 printk(KERN_ERR "couldn't acquire dspxor_ck\n"); 307 return PTR_ERR(dspxor_ck); 308 } 309 310 ret = dsp_kfunc_device_register(&nokia770_audio_device); 311 if (ret) { 312 printk(KERN_ERR 313 "KFUNC device registration faild: %s\n", 314 nokia770_audio_device.name); 315 goto out; 316 } 317 return 0; 318 out: 319 return ret; 320 } 321 #endif /* CONFIG_OMAP_DSP */ 322 323 static void __init omap_nokia770_init(void) 324 { 325 nokia770_config[0].data = &nokia770_usb_config; 326 327 platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices)); 328 spi_register_board_info(nokia770_spi_board_info, 329 ARRAY_SIZE(nokia770_spi_board_info)); 330 omap_board_config = nokia770_config; 331 omap_board_config_size = ARRAY_SIZE(nokia770_config); 332 omap_gpio_init(); 333 omap_serial_init(); 334 omap_dsp_init(); 335 ads7846_dev_init(); 336 mipid_dev_init(); 337 } 338 339 static void __init omap_nokia770_map_io(void) 340 { 341 omap1_map_common_io(); 342 } 343 344 MACHINE_START(NOKIA770, "Nokia 770") 345 .phys_io = 0xfff00000, 346 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, 347 .boot_params = 0x10000100, 348 .map_io = omap_nokia770_map_io, 349 .init_irq = omap_nokia770_init_irq, 350 .init_machine = omap_nokia770_init, 351 .timer = &omap_timer, 352 MACHINE_END 353