1/* 2 * linux/arch/arm/mach-at91/board-sam9260ek.c 3 * 4 * Copyright (C) 2005 SAN People 5 * Copyright (C) 2006 Atmel 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22#include <linux/types.h> 23#include <linux/init.h> 24#include <linux/mm.h> 25#include <linux/module.h> 26#include <linux/platform_device.h> 27#include <linux/spi/spi.h> 28#include <linux/spi/at73c213.h> 29#include <linux/clk.h> 30#include <linux/i2c/at24.h> 31#include <linux/gpio_keys.h> 32#include <linux/input.h> 33 34#include <asm/setup.h> 35#include <asm/mach-types.h> 36#include <asm/irq.h> 37 38#include <asm/mach/arch.h> 39#include <asm/mach/map.h> 40#include <asm/mach/irq.h> 41 42#include <mach/hardware.h> 43#include <mach/board.h> 44#include <mach/gpio.h> 45#include <mach/at91sam9_smc.h> 46#include <mach/at91_shdwc.h> 47 48#include "sam9_smc.h" 49#include "generic.h" 50 51 52static void __init ek_map_io(void) 53{ 54 /* Initialize processor: 18.432 MHz crystal */ 55 at91sam9260_initialize(18432000); 56 57 /* DBGU on ttyS0. (Rx & Tx only) */ 58 at91_register_uart(0, 0, 0); 59 60 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ 61 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS 62 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD 63 | ATMEL_UART_RI); 64 65 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */ 66 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS); 67 68 /* set serial console to ttyS0 (ie, DBGU) */ 69 at91_set_serial_console(0); 70} 71 72static void __init ek_init_irq(void) 73{ 74 at91sam9260_init_interrupts(NULL); 75} 76 77 78/* 79 * USB Host port 80 */ 81static struct at91_usbh_data __initdata ek_usbh_data = { 82 .ports = 2, 83}; 84 85/* 86 * USB Device port 87 */ 88static struct at91_udc_data __initdata ek_udc_data = { 89 .vbus_pin = AT91_PIN_PC5, 90 .pullup_pin = 0, /* pull-up driven by UDC */ 91}; 92 93 94/* 95 * Audio 96 */ 97static struct at73c213_board_info at73c213_data = { 98 .ssc_id = 0, 99 .shortname = "AT91SAM9260-EK external DAC", 100}; 101 102#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) 103static void __init at73c213_set_clk(struct at73c213_board_info *info) 104{ 105 struct clk *pck0; 106 struct clk *plla; 107 108 pck0 = clk_get(NULL, "pck0"); 109 plla = clk_get(NULL, "plla"); 110 111 /* AT73C213 MCK Clock */ 112 at91_set_B_periph(AT91_PIN_PC1, 0); /* PCK0 */ 113 114 clk_set_parent(pck0, plla); 115 clk_put(plla); 116 117 info->dac_clk = pck0; 118} 119#else 120static void __init at73c213_set_clk(struct at73c213_board_info *info) {} 121#endif 122 123/* 124 * SPI devices. 125 */ 126static struct spi_board_info ek_spi_devices[] = { 127#if !defined(CONFIG_MMC_AT91) 128 { /* DataFlash chip */ 129 .modalias = "mtd_dataflash", 130 .chip_select = 1, 131 .max_speed_hz = 15 * 1000 * 1000, 132 .bus_num = 0, 133 }, 134#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) 135 { /* DataFlash card */ 136 .modalias = "mtd_dataflash", 137 .chip_select = 0, 138 .max_speed_hz = 15 * 1000 * 1000, 139 .bus_num = 0, 140 }, 141#endif 142#endif 143#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) 144 { /* AT73C213 DAC */ 145 .modalias = "at73c213", 146 .chip_select = 0, 147 .max_speed_hz = 10 * 1000 * 1000, 148 .bus_num = 1, 149 .mode = SPI_MODE_1, 150 .platform_data = &at73c213_data, 151 }, 152#endif 153}; 154 155 156/* 157 * MACB Ethernet device 158 */ 159static struct at91_eth_data __initdata ek_macb_data = { 160 .phy_irq_pin = AT91_PIN_PA7, 161 .is_rmii = 1, 162}; 163 164 165/* 166 * NAND flash 167 */ 168static struct mtd_partition __initdata ek_nand_partition[] = { 169 { 170 .name = "Partition 1", 171 .offset = 0, 172 .size = SZ_256K, 173 }, 174 { 175 .name = "Partition 2", 176 .offset = MTDPART_OFS_NXTBLK, 177 .size = MTDPART_SIZ_FULL, 178 }, 179}; 180 181static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) 182{ 183 *num_partitions = ARRAY_SIZE(ek_nand_partition); 184 return ek_nand_partition; 185} 186 187static struct atmel_nand_data __initdata ek_nand_data = { 188 .ale = 21, 189 .cle = 22, 190// .det_pin = ... not connected 191 .rdy_pin = AT91_PIN_PC13, 192 .enable_pin = AT91_PIN_PC14, 193 .partition_info = nand_partitions, 194#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) 195 .bus_width_16 = 1, 196#else 197 .bus_width_16 = 0, 198#endif 199}; 200 201static struct sam9_smc_config __initdata ek_nand_smc_config = { 202 .ncs_read_setup = 0, 203 .nrd_setup = 1, 204 .ncs_write_setup = 0, 205 .nwe_setup = 1, 206 207 .ncs_read_pulse = 3, 208 .nrd_pulse = 3, 209 .ncs_write_pulse = 3, 210 .nwe_pulse = 3, 211 212 .read_cycle = 5, 213 .write_cycle = 5, 214 215 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, 216 .tdf_cycles = 2, 217}; 218 219static void __init ek_add_device_nand(void) 220{ 221 /* setup bus-width (8 or 16) */ 222 if (ek_nand_data.bus_width_16) 223 ek_nand_smc_config.mode |= AT91_SMC_DBW_16; 224 else 225 ek_nand_smc_config.mode |= AT91_SMC_DBW_8; 226 227 /* configure chip-select 3 (NAND) */ 228 sam9_smc_configure(3, &ek_nand_smc_config); 229 230 at91_add_device_nand(&ek_nand_data); 231} 232 233 234/* 235 * MCI (SD/MMC) 236 */ 237static struct at91_mmc_data __initdata ek_mmc_data = { 238 .slot_b = 1, 239 .wire4 = 1, 240// .det_pin = ... not connected 241// .wp_pin = ... not connected 242// .vcc_pin = ... not connected 243}; 244 245 246/* 247 * LEDs 248 */ 249static struct gpio_led ek_leds[] = { 250 { /* "bottom" led, green, userled1 to be defined */ 251 .name = "ds5", 252 .gpio = AT91_PIN_PA6, 253 .active_low = 1, 254 .default_trigger = "none", 255 }, 256 { /* "power" led, yellow */ 257 .name = "ds1", 258 .gpio = AT91_PIN_PA9, 259 .default_trigger = "heartbeat", 260 } 261}; 262 263/* 264 * I2C devices 265 */ 266static struct at24_platform_data at24c512 = { 267 .byte_len = SZ_512K / 8, 268 .page_size = 128, 269 .flags = AT24_FLAG_ADDR16, 270}; 271 272static struct i2c_board_info __initdata ek_i2c_devices[] = { 273 { 274 I2C_BOARD_INFO("24c512", 0x50), 275 .platform_data = &at24c512, 276 }, 277 /* more devices can be added using expansion connectors */ 278}; 279 280 281/* 282 * GPIO Buttons 283 */ 284#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) 285static struct gpio_keys_button ek_buttons[] = { 286 { 287 .gpio = AT91_PIN_PA30, 288 .code = BTN_3, 289 .desc = "Button 3", 290 .active_low = 1, 291 .wakeup = 1, 292 }, 293 { 294 .gpio = AT91_PIN_PA31, 295 .code = BTN_4, 296 .desc = "Button 4", 297 .active_low = 1, 298 .wakeup = 1, 299 } 300}; 301 302static struct gpio_keys_platform_data ek_button_data = { 303 .buttons = ek_buttons, 304 .nbuttons = ARRAY_SIZE(ek_buttons), 305}; 306 307static struct platform_device ek_button_device = { 308 .name = "gpio-keys", 309 .id = -1, 310 .num_resources = 0, 311 .dev = { 312 .platform_data = &ek_button_data, 313 } 314}; 315 316static void __init ek_add_device_buttons(void) 317{ 318 at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */ 319 at91_set_deglitch(AT91_PIN_PA30, 1); 320 at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ 321 at91_set_deglitch(AT91_PIN_PA31, 1); 322 323 platform_device_register(&ek_button_device); 324} 325#else 326static void __init ek_add_device_buttons(void) {} 327#endif 328 329 330static void __init ek_board_init(void) 331{ 332 /* Serial */ 333 at91_add_device_serial(); 334 /* USB Host */ 335 at91_add_device_usbh(&ek_usbh_data); 336 /* USB Device */ 337 at91_add_device_udc(&ek_udc_data); 338 /* SPI */ 339 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); 340 /* NAND */ 341 ek_add_device_nand(); 342 /* Ethernet */ 343 at91_add_device_eth(&ek_macb_data); 344 /* MMC */ 345 at91_add_device_mmc(0, &ek_mmc_data); 346 /* I2C */ 347 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); 348 /* SSC (to AT73C213) */ 349 at73c213_set_clk(&at73c213_data); 350 at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX); 351 /* LEDs */ 352 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); 353 /* Push Buttons */ 354 ek_add_device_buttons(); 355} 356 357MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK") 358 /* Maintainer: Atmel */ 359 .phys_io = AT91_BASE_SYS, 360 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, 361 .boot_params = AT91_SDRAM_BASE + 0x100, 362 .timer = &at91sam926x_timer, 363 .map_io = ek_map_io, 364 .init_irq = ek_init_irq, 365 .init_machine = ek_board_init, 366MACHINE_END 367