1 /* 2 * linux/arch/arm/mach-omap1/board-osk.c 3 * 4 * Board specific init for OMAP5912 OSK 5 * 6 * Written by Dirk Behme <dirk.behme@de.bosch.com> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2 of the License, or (at your 11 * option) any later version. 12 * 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * You should have received a copy of the GNU General Public License along 25 * with this program; if not, write to the Free Software Foundation, Inc., 26 * 675 Mass Ave, Cambridge, MA 02139, USA. 27 */ 28 29 #include <linux/kernel.h> 30 #include <linux/init.h> 31 #include <linux/platform_device.h> 32 #include <linux/irq.h> 33 #include <linux/interrupt.h> 34 35 #include <linux/mtd/mtd.h> 36 #include <linux/mtd/partitions.h> 37 38 #include <asm/hardware.h> 39 #include <asm/mach-types.h> 40 #include <asm/mach/arch.h> 41 #include <asm/mach/map.h> 42 #include <asm/mach/flash.h> 43 44 #include <asm/arch/gpio.h> 45 #include <asm/arch/usb.h> 46 #include <asm/arch/mux.h> 47 #include <asm/arch/tc.h> 48 #include <asm/arch/common.h> 49 #include <asm/arch/mcbsp.h> 50 #include <asm/arch/omap-alsa.h> 51 52 static struct mtd_partition osk_partitions[] = { 53 /* bootloader (U-Boot, etc) in first sector */ 54 { 55 .name = "bootloader", 56 .offset = 0, 57 .size = SZ_128K, 58 .mask_flags = MTD_WRITEABLE, /* force read-only */ 59 }, 60 /* bootloader params in the next sector */ 61 { 62 .name = "params", 63 .offset = MTDPART_OFS_APPEND, 64 .size = SZ_128K, 65 .mask_flags = 0, 66 }, { 67 .name = "kernel", 68 .offset = MTDPART_OFS_APPEND, 69 .size = SZ_2M, 70 .mask_flags = 0 71 }, { 72 .name = "filesystem", 73 .offset = MTDPART_OFS_APPEND, 74 .size = MTDPART_SIZ_FULL, 75 .mask_flags = 0 76 } 77 }; 78 79 static struct flash_platform_data osk_flash_data = { 80 .map_name = "cfi_probe", 81 .width = 2, 82 .parts = osk_partitions, 83 .nr_parts = ARRAY_SIZE(osk_partitions), 84 }; 85 86 static struct resource osk_flash_resource = { 87 /* this is on CS3, wherever it's mapped */ 88 .flags = IORESOURCE_MEM, 89 }; 90 91 static struct platform_device osk5912_flash_device = { 92 .name = "omapflash", 93 .id = 0, 94 .dev = { 95 .platform_data = &osk_flash_data, 96 }, 97 .num_resources = 1, 98 .resource = &osk_flash_resource, 99 }; 100 101 static struct resource osk5912_smc91x_resources[] = { 102 [0] = { 103 .start = OMAP_OSK_ETHR_START, /* Physical */ 104 .end = OMAP_OSK_ETHR_START + 0xf, 105 .flags = IORESOURCE_MEM, 106 }, 107 [1] = { 108 .start = OMAP_GPIO_IRQ(0), 109 .end = OMAP_GPIO_IRQ(0), 110 .flags = IORESOURCE_IRQ, 111 }, 112 }; 113 114 static struct platform_device osk5912_smc91x_device = { 115 .name = "smc91x", 116 .id = -1, 117 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources), 118 .resource = osk5912_smc91x_resources, 119 }; 120 121 static struct resource osk5912_cf_resources[] = { 122 [0] = { 123 .start = OMAP_GPIO_IRQ(62), 124 .end = OMAP_GPIO_IRQ(62), 125 .flags = IORESOURCE_IRQ, 126 }, 127 }; 128 129 static struct platform_device osk5912_cf_device = { 130 .name = "omap_cf", 131 .id = -1, 132 .dev = { 133 .platform_data = (void *) 2 /* CS2 */, 134 }, 135 .num_resources = ARRAY_SIZE(osk5912_cf_resources), 136 .resource = osk5912_cf_resources, 137 }; 138 139 #define DEFAULT_BITPERSAMPLE 16 140 141 static struct omap_mcbsp_reg_cfg mcbsp_regs = { 142 .spcr2 = FREE | FRST | GRST | XRST | XINTM(3), 143 .spcr1 = RINTM(3) | RRST, 144 .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) | 145 RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0), 146 .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16), 147 .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) | 148 XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG, 149 .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16), 150 .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1), 151 .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1), 152 /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */ 153 .pcr0 = CLKXP | CLKRP, /* mcbsp: slave */ 154 }; 155 156 static struct omap_alsa_codec_config alsa_config = { 157 .name = "OSK AIC23", 158 .mcbsp_regs_alsa = &mcbsp_regs, 159 .codec_configure_dev = NULL, // aic23_configure, 160 .codec_set_samplerate = NULL, // aic23_set_samplerate, 161 .codec_clock_setup = NULL, // aic23_clock_setup, 162 .codec_clock_on = NULL, // aic23_clock_on, 163 .codec_clock_off = NULL, // aic23_clock_off, 164 .get_default_samplerate = NULL, // aic23_get_default_samplerate, 165 }; 166 167 static struct platform_device osk5912_mcbsp1_device = { 168 .name = "omap_alsa_mcbsp", 169 .id = 1, 170 .dev = { 171 .platform_data = &alsa_config, 172 }, 173 }; 174 175 static struct platform_device *osk5912_devices[] __initdata = { 176 &osk5912_flash_device, 177 &osk5912_smc91x_device, 178 &osk5912_cf_device, 179 &osk5912_mcbsp1_device, 180 }; 181 182 static void __init osk_init_smc91x(void) 183 { 184 if ((omap_request_gpio(0)) < 0) { 185 printk("Error requesting gpio 0 for smc91x irq\n"); 186 return; 187 } 188 189 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ 190 EMIFS_CCS(1) |= 0x3; 191 } 192 193 static void __init osk_init_cf(void) 194 { 195 omap_cfg_reg(M7_1610_GPIO62); 196 if ((omap_request_gpio(62)) < 0) { 197 printk("Error requesting gpio 62 for CF irq\n"); 198 return; 199 } 200 /* the CF I/O IRQ is really active-low */ 201 set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING); 202 } 203 204 static void __init osk_init_irq(void) 205 { 206 omap1_init_common_hw(); 207 omap_init_irq(); 208 omap_gpio_init(); 209 osk_init_smc91x(); 210 osk_init_cf(); 211 } 212 213 static struct omap_usb_config osk_usb_config __initdata = { 214 /* has usb host connector (A) ... for development it can also 215 * be used, with a NONSTANDARD gender-bending cable/dongle, as 216 * a peripheral. 217 */ 218 #ifdef CONFIG_USB_GADGET_OMAP 219 .register_dev = 1, 220 .hmc_mode = 0, 221 #else 222 .register_host = 1, 223 .hmc_mode = 16, 224 .rwc = 1, 225 #endif 226 .pins[0] = 2, 227 }; 228 229 static struct omap_uart_config osk_uart_config __initdata = { 230 .enabled_uarts = (1 << 0), 231 }; 232 233 #ifdef CONFIG_OMAP_OSK_MISTRAL 234 static struct omap_lcd_config osk_lcd_config __initdata = { 235 .ctrl_name = "internal", 236 }; 237 #endif 238 239 static struct omap_board_config_kernel osk_config[] = { 240 { OMAP_TAG_USB, &osk_usb_config }, 241 { OMAP_TAG_UART, &osk_uart_config }, 242 #ifdef CONFIG_OMAP_OSK_MISTRAL 243 { OMAP_TAG_LCD, &osk_lcd_config }, 244 #endif 245 }; 246 247 #ifdef CONFIG_OMAP_OSK_MISTRAL 248 249 #include <linux/input.h> 250 #include <linux/spi/spi.h> 251 #include <linux/spi/ads7846.h> 252 253 #include <asm/arch/keypad.h> 254 255 static const int osk_keymap[] = { 256 /* KEY(col, row, code) */ 257 KEY(0, 0, KEY_F1), /* SW4 */ 258 KEY(0, 3, KEY_UP), /* (sw2/up) */ 259 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ 260 KEY(1, 2, KEY_LEFT), /* (sw2/left) */ 261 KEY(2, 0, KEY_SPACE), /* SW3 */ 262 KEY(2, 1, KEY_ESC), /* SW6 */ 263 KEY(2, 2, KEY_DOWN), /* (sw2/down) */ 264 KEY(3, 2, KEY_ENTER), /* (sw2/select) */ 265 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 266 0 267 }; 268 269 static struct omap_kp_platform_data osk_kp_data = { 270 .rows = 8, 271 .cols = 8, 272 .keymap = (int *) osk_keymap, 273 .keymapsize = ARRAY_SIZE(osk_keymap), 274 .delay = 9, 275 }; 276 277 static struct resource osk5912_kp_resources[] = { 278 [0] = { 279 .start = INT_KEYBOARD, 280 .end = INT_KEYBOARD, 281 .flags = IORESOURCE_IRQ, 282 }, 283 }; 284 285 static struct platform_device osk5912_kp_device = { 286 .name = "omap-keypad", 287 .id = -1, 288 .dev = { 289 .platform_data = &osk_kp_data, 290 }, 291 .num_resources = ARRAY_SIZE(osk5912_kp_resources), 292 .resource = osk5912_kp_resources, 293 }; 294 295 static struct platform_device osk5912_lcd_device = { 296 .name = "lcd_osk", 297 .id = -1, 298 }; 299 300 static struct platform_device *mistral_devices[] __initdata = { 301 &osk5912_kp_device, 302 &osk5912_lcd_device, 303 }; 304 305 static int mistral_get_pendown_state(void) 306 { 307 return !omap_get_gpio_datain(4); 308 } 309 310 static const struct ads7846_platform_data mistral_ts_info = { 311 .model = 7846, 312 .vref_delay_usecs = 100, /* internal, no capacitor */ 313 .x_plate_ohms = 419, 314 .y_plate_ohms = 486, 315 .get_pendown_state = mistral_get_pendown_state, 316 }; 317 318 static struct spi_board_info __initdata mistral_boardinfo[] = { { 319 /* MicroWire (bus 2) CS0 has an ads7846e */ 320 .modalias = "ads7846", 321 .platform_data = &mistral_ts_info, 322 .irq = OMAP_GPIO_IRQ(4), 323 .max_speed_hz = 120000 /* max sample rate at 3V */ 324 * 26 /* command + data + overhead */, 325 .bus_num = 2, 326 .chip_select = 0, 327 } }; 328 329 #ifdef CONFIG_PM 330 static irqreturn_t 331 osk_mistral_wake_interrupt(int irq, void *ignored) 332 { 333 return IRQ_HANDLED; 334 } 335 #endif 336 337 static void __init osk_mistral_init(void) 338 { 339 /* NOTE: we could actually tell if there's a Mistral board 340 * attached, e.g. by trying to read something from the ads7846. 341 * But this arch_init() code is too early for that, since we 342 * can't talk to the ads or even the i2c eeprom. 343 */ 344 345 // omap_cfg_reg(P19_1610_GPIO6); // BUSY 346 omap_cfg_reg(P20_1610_GPIO4); // PENIRQ 347 set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING); 348 spi_register_board_info(mistral_boardinfo, 349 ARRAY_SIZE(mistral_boardinfo)); 350 351 /* the sideways button (SW1) is for use as a "wakeup" button */ 352 omap_cfg_reg(N15_1610_MPUIO2); 353 if (omap_request_gpio(OMAP_MPUIO(2)) == 0) { 354 int ret = 0; 355 omap_set_gpio_direction(OMAP_MPUIO(2), 1); 356 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING); 357 #ifdef CONFIG_PM 358 /* share the IRQ in case someone wants to use the 359 * button for more than wakeup from system sleep. 360 */ 361 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), 362 &osk_mistral_wake_interrupt, 363 IRQF_SHARED, "mistral_wakeup", 364 &osk_mistral_wake_interrupt); 365 if (ret != 0) { 366 omap_free_gpio(OMAP_MPUIO(2)); 367 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", 368 ret); 369 } else 370 enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2))); 371 #endif 372 } else 373 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); 374 375 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); 376 } 377 #else 378 static void __init osk_mistral_init(void) { } 379 #endif 380 381 #define EMIFS_CS3_VAL (0x88013141) 382 383 static void __init osk_init(void) 384 { 385 /* Workaround for wrong CS3 (NOR flash) timing 386 * There are some U-Boot versions out there which configure 387 * wrong CS3 memory timings. This mainly leads to CRC 388 * or similiar errors if you use NOR flash (e.g. with JFFS2) 389 */ 390 if (EMIFS_CCS(3) != EMIFS_CS3_VAL) 391 EMIFS_CCS(3) = EMIFS_CS3_VAL; 392 393 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); 394 osk_flash_resource.end += SZ_32M - 1; 395 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); 396 omap_board_config = osk_config; 397 omap_board_config_size = ARRAY_SIZE(osk_config); 398 USB_TRANSCEIVER_CTRL_REG |= (3 << 1); 399 400 omap_serial_init(); 401 osk_mistral_init(); 402 } 403 404 static void __init osk_map_io(void) 405 { 406 omap1_map_common_io(); 407 } 408 409 MACHINE_START(OMAP_OSK, "TI-OSK") 410 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ 411 .phys_io = 0xfff00000, 412 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, 413 .boot_params = 0x10000100, 414 .map_io = osk_map_io, 415 .init_irq = osk_init_irq, 416 .init_machine = osk_init, 417 .timer = &omap_timer, 418 MACHINE_END 419