1/* 2 * linux/arch/arm/mach-at91/board-cap9adk.c 3 * 4 * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> 5 * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> 6 * Copyright (C) 2005 SAN People 7 * Copyright (C) 2007 Atmel Corporation. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 */ 23 24#include <linux/types.h> 25#include <linux/init.h> 26#include <linux/mm.h> 27#include <linux/module.h> 28#include <linux/platform_device.h> 29#include <linux/spi/spi.h> 30#include <linux/spi/ads7846.h> 31#include <linux/fb.h> 32#include <linux/mtd/physmap.h> 33 34#include <video/atmel_lcdc.h> 35 36#include <mach/hardware.h> 37#include <asm/setup.h> 38#include <asm/mach-types.h> 39 40#include <asm/mach/arch.h> 41#include <asm/mach/map.h> 42 43#include <mach/board.h> 44#include <mach/gpio.h> 45#include <mach/at91cap9_matrix.h> 46#include <mach/at91sam9_smc.h> 47 48#include "sam9_smc.h" 49#include "generic.h" 50 51 52static void __init cap9adk_map_io(void) 53{ 54 /* Initialize processor: 12 MHz crystal */ 55 at91cap9_initialize(12000000); 56 57 /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */ 58 at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11); 59 /* ... POWER LED always on */ 60 at91_set_gpio_output(AT91_PIN_PC29, 1); 61 62 /* Setup the serial ports and console */ 63 at91_register_uart(0, 0, 0); /* DBGU = ttyS0 */ 64 at91_set_serial_console(0); 65} 66 67static void __init cap9adk_init_irq(void) 68{ 69 at91cap9_init_interrupts(NULL); 70} 71 72 73/* 74 * USB Host port 75 */ 76static struct at91_usbh_data __initdata cap9adk_usbh_data = { 77 .ports = 2, 78}; 79 80/* 81 * USB HS Device port 82 */ 83static struct usba_platform_data __initdata cap9adk_usba_udc_data = { 84 .vbus_pin = AT91_PIN_PB31, 85}; 86 87/* 88 * ADS7846 Touchscreen 89 */ 90#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) 91static int ads7843_pendown_state(void) 92{ 93 return !at91_get_gpio_value(AT91_PIN_PC4); /* Touchscreen PENIRQ */ 94} 95 96static struct ads7846_platform_data ads_info = { 97 .model = 7843, 98 .x_min = 150, 99 .x_max = 3830, 100 .y_min = 190, 101 .y_max = 3830, 102 .vref_delay_usecs = 100, 103 .x_plate_ohms = 450, 104 .y_plate_ohms = 250, 105 .pressure_max = 15000, 106 .debounce_max = 1, 107 .debounce_rep = 0, 108 .debounce_tol = (~0), 109 .get_pendown_state = ads7843_pendown_state, 110}; 111 112static void __init cap9adk_add_device_ts(void) 113{ 114 at91_set_gpio_input(AT91_PIN_PC4, 1); /* Touchscreen PENIRQ */ 115 at91_set_gpio_input(AT91_PIN_PC5, 1); /* Touchscreen BUSY */ 116} 117#else 118static void __init cap9adk_add_device_ts(void) {} 119#endif 120 121 122/* 123 * SPI devices. 124 */ 125static struct spi_board_info cap9adk_spi_devices[] = { 126#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) 127 { /* DataFlash card */ 128 .modalias = "mtd_dataflash", 129 .chip_select = 0, 130 .max_speed_hz = 15 * 1000 * 1000, 131 .bus_num = 0, 132 }, 133#endif 134#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) 135 { 136 .modalias = "ads7846", 137 .chip_select = 3, /* can be 2 or 3, depending on J2 jumper */ 138 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ 139 .bus_num = 0, 140 .platform_data = &ads_info, 141 .irq = AT91_PIN_PC4, 142 }, 143#endif 144}; 145 146 147/* 148 * MCI (SD/MMC) 149 */ 150static struct at91_mmc_data __initdata cap9adk_mmc_data = { 151 .wire4 = 1, 152// .det_pin = ... not connected 153// .wp_pin = ... not connected 154// .vcc_pin = ... not connected 155}; 156 157 158/* 159 * MACB Ethernet device 160 */ 161static struct at91_eth_data __initdata cap9adk_macb_data = { 162 .is_rmii = 1, 163}; 164 165 166/* 167 * NAND flash 168 */ 169static struct mtd_partition __initdata cap9adk_nand_partitions[] = { 170 { 171 .name = "NAND partition", 172 .offset = 0, 173 .size = MTDPART_SIZ_FULL, 174 }, 175}; 176 177static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) 178{ 179 *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions); 180 return cap9adk_nand_partitions; 181} 182 183static struct atmel_nand_data __initdata cap9adk_nand_data = { 184 .ale = 21, 185 .cle = 22, 186// .det_pin = ... not connected 187// .rdy_pin = ... not connected 188 .enable_pin = AT91_PIN_PD15, 189 .partition_info = nand_partitions, 190#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) 191 .bus_width_16 = 1, 192#else 193 .bus_width_16 = 0, 194#endif 195}; 196 197static struct sam9_smc_config __initdata cap9adk_nand_smc_config = { 198 .ncs_read_setup = 1, 199 .nrd_setup = 2, 200 .ncs_write_setup = 1, 201 .nwe_setup = 2, 202 203 .ncs_read_pulse = 6, 204 .nrd_pulse = 4, 205 .ncs_write_pulse = 6, 206 .nwe_pulse = 4, 207 208 .read_cycle = 8, 209 .write_cycle = 8, 210 211 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, 212 .tdf_cycles = 1, 213}; 214 215static void __init cap9adk_add_device_nand(void) 216{ 217 unsigned long csa; 218 219 csa = at91_sys_read(AT91_MATRIX_EBICSA); 220 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); 221 222 /* setup bus-width (8 or 16) */ 223 if (cap9adk_nand_data.bus_width_16) 224 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16; 225 else 226 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8; 227 228 /* configure chip-select 3 (NAND) */ 229 sam9_smc_configure(3, &cap9adk_nand_smc_config); 230 231 at91_add_device_nand(&cap9adk_nand_data); 232} 233 234 235/* 236 * NOR flash 237 */ 238static struct mtd_partition cap9adk_nor_partitions[] = { 239 { 240 .name = "NOR partition", 241 .offset = 0, 242 .size = MTDPART_SIZ_FULL, 243 }, 244}; 245 246static struct physmap_flash_data cap9adk_nor_data = { 247 .width = 2, 248 .parts = cap9adk_nor_partitions, 249 .nr_parts = ARRAY_SIZE(cap9adk_nor_partitions), 250}; 251 252#define NOR_BASE AT91_CHIPSELECT_0 253#define NOR_SIZE SZ_8M 254 255static struct resource nor_flash_resources[] = { 256 { 257 .start = NOR_BASE, 258 .end = NOR_BASE + NOR_SIZE - 1, 259 .flags = IORESOURCE_MEM, 260 } 261}; 262 263static struct platform_device cap9adk_nor_flash = { 264 .name = "physmap-flash", 265 .id = 0, 266 .dev = { 267 .platform_data = &cap9adk_nor_data, 268 }, 269 .resource = nor_flash_resources, 270 .num_resources = ARRAY_SIZE(nor_flash_resources), 271}; 272 273static struct sam9_smc_config __initdata cap9adk_nor_smc_config = { 274 .ncs_read_setup = 2, 275 .nrd_setup = 4, 276 .ncs_write_setup = 2, 277 .nwe_setup = 4, 278 279 .ncs_read_pulse = 10, 280 .nrd_pulse = 8, 281 .ncs_write_pulse = 10, 282 .nwe_pulse = 8, 283 284 .read_cycle = 16, 285 .write_cycle = 16, 286 287 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16, 288 .tdf_cycles = 1, 289}; 290 291static __init void cap9adk_add_device_nor(void) 292{ 293 unsigned long csa; 294 295 csa = at91_sys_read(AT91_MATRIX_EBICSA); 296 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); 297 298 /* configure chip-select 0 (NOR) */ 299 sam9_smc_configure(0, &cap9adk_nor_smc_config); 300 301 platform_device_register(&cap9adk_nor_flash); 302} 303 304 305/* 306 * LCD Controller 307 */ 308#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) 309static struct fb_videomode at91_tft_vga_modes[] = { 310 { 311 .name = "TX09D50VM1CCA @ 60", 312 .refresh = 60, 313 .xres = 240, .yres = 320, 314 .pixclock = KHZ2PICOS(4965), 315 316 .left_margin = 1, .right_margin = 33, 317 .upper_margin = 1, .lower_margin = 0, 318 .hsync_len = 5, .vsync_len = 1, 319 320 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 321 .vmode = FB_VMODE_NONINTERLACED, 322 }, 323}; 324 325static struct fb_monspecs at91fb_default_monspecs = { 326 .manufacturer = "HIT", 327 .monitor = "TX09D70VM1CCA", 328 329 .modedb = at91_tft_vga_modes, 330 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes), 331 .hfmin = 15000, 332 .hfmax = 64000, 333 .vfmin = 50, 334 .vfmax = 150, 335}; 336 337#define AT91CAP9_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ 338 | ATMEL_LCDC_DISTYPE_TFT \ 339 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) 340 341static void at91_lcdc_power_control(int on) 342{ 343 if (on) 344 at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */ 345 else 346 at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */ 347} 348 349/* Driver datas */ 350static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = { 351 .default_bpp = 16, 352 .default_dmacon = ATMEL_LCDC_DMAEN, 353 .default_lcdcon2 = AT91CAP9_DEFAULT_LCDCON2, 354 .default_monspecs = &at91fb_default_monspecs, 355 .atmel_lcdfb_power_control = at91_lcdc_power_control, 356 .guard_time = 1, 357}; 358 359#else 360static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data; 361#endif 362 363 364/* 365 * AC97 366 */ 367static struct ac97c_platform_data cap9adk_ac97_data = { 368// .reset_pin = ... not connected 369}; 370 371 372static void __init cap9adk_board_init(void) 373{ 374 /* Serial */ 375 at91_add_device_serial(); 376 /* USB Host */ 377 at91_add_device_usbh(&cap9adk_usbh_data); 378 /* USB HS */ 379 at91_add_device_usba(&cap9adk_usba_udc_data); 380 /* SPI */ 381 at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices)); 382 /* Touchscreen */ 383 cap9adk_add_device_ts(); 384 /* MMC */ 385 at91_add_device_mmc(1, &cap9adk_mmc_data); 386 /* Ethernet */ 387 at91_add_device_eth(&cap9adk_macb_data); 388 /* NAND */ 389 cap9adk_add_device_nand(); 390 /* NOR Flash */ 391 cap9adk_add_device_nor(); 392 /* I2C */ 393 at91_add_device_i2c(NULL, 0); 394 /* LCD Controller */ 395 at91_add_device_lcdc(&cap9adk_lcdc_data); 396 /* AC97 */ 397 at91_add_device_ac97(&cap9adk_ac97_data); 398} 399 400MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK") 401 /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */ 402 .phys_io = AT91_BASE_SYS, 403 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, 404 .boot_params = AT91_SDRAM_BASE + 0x100, 405 .timer = &at91sam926x_timer, 406 .map_io = cap9adk_map_io, 407 .init_irq = cap9adk_init_irq, 408 .init_machine = cap9adk_board_init, 409MACHINE_END 410