arch/arm/mach-at91/board-cpu9krea.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-cpu9krea.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   6  *  Copyright (C) 2009 Eric Benard - eric@eukrea.com
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/gpio.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/clk.h>
  30 #include <linux/gpio_keys.h>
  31 #include <linux/input.h>
  32 #include <linux/mtd/physmap.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/at91sam9_smc.h>
  45 #include <mach/at91sam9260_matrix.h>
  46 #include <mach/at91_matrix.h>
  47
  48 #include "sam9_smc.h"
  49 #include "generic.h"
  50
  51 static void __init cpu9krea_init_early(void)
  52 {
  53         /* Initialize processor: 18.432 MHz crystal */
  54         at91_initialize(18432000);
  55
  56         /* DGBU on ttyS0. (Rx & Tx only) */
  57         at91_register_uart(0, 0, 0);
  58
  59         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  60         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
  61                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
  62                 ATMEL_UART_DCD | ATMEL_UART_RI);
  63
  64         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  65         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
  66                 ATMEL_UART_RTS);
  67
  68         /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
  69         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
  70                 ATMEL_UART_RTS);
  71
  72         /* USART3 on ttyS4. (Rx, Tx) */
  73         at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
  74
  75         /* USART4 on ttyS5. (Rx, Tx) */
  76         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
  77
  78         /* USART5 on ttyS6. (Rx, Tx) */
  79         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
  80
  81         /* set serial console to ttyS0 (ie, DBGU) */
  82         at91_set_serial_console(0);
  83 }
  84
  85 /*
  86  * USB Host port
  87  */
  88 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
  89         .ports          = 2,
  90         .vbus_pin       = {-EINVAL, -EINVAL},
  91         .overcurrent_pin= {-EINVAL, -EINVAL},
  92 };
  93
  94 /*
  95  * USB Device port
  96  */
  97 static struct at91_udc_data __initdata cpu9krea_udc_data = {
  98         .vbus_pin       = AT91_PIN_PC8,
  99         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
 100 };
 101
 102 /*
 103  * MACB Ethernet device
 104  */
 105 static struct macb_platform_data __initdata cpu9krea_macb_data = {
 106         .phy_irq_pin    = -EINVAL,
 107         .is_rmii        = 1,
 108 };
 109
 110 /*
 111  * NAND flash
 112  */
 113 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
 114         .ale            = 21,
 115         .cle            = 22,
 116         .rdy_pin        = AT91_PIN_PC13,
 117         .enable_pin     = AT91_PIN_PC14,
 118         .bus_width_16   = 0,
 119         .det_pin        = -EINVAL,
 120         .ecc_mode       = NAND_ECC_SOFT,
 121 };
 122
 123 #ifdef CONFIG_MACH_CPU9260
 124 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 125         .ncs_read_setup         = 0,
 126         .nrd_setup              = 1,
 127         .ncs_write_setup        = 0,
 128         .nwe_setup              = 1,
 129
 130         .ncs_read_pulse         = 3,
 131         .nrd_pulse              = 3,
 132         .ncs_write_pulse        = 3,
 133         .nwe_pulse              = 3,
 134
 135         .read_cycle             = 5,
 136         .write_cycle            = 5,
 137
 138         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 139                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 140         .tdf_cycles             = 2,
 141 };
 142 #else
 143 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 144         .ncs_read_setup         = 0,
 145         .nrd_setup              = 2,
 146         .ncs_write_setup        = 0,
 147         .nwe_setup              = 2,
 148
 149         .ncs_read_pulse         = 4,
 150         .nrd_pulse              = 4,
 151         .ncs_write_pulse        = 4,
 152         .nwe_pulse              = 4,
 153
 154         .read_cycle             = 7,
 155         .write_cycle            = 7,
 156
 157         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 158                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 159         .tdf_cycles             = 3,
 160 };
 161 #endif
 162
 163 static void __init cpu9krea_add_device_nand(void)
 164 {
 165         sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
 166         at91_add_device_nand(&cpu9krea_nand_data);
 167 }
 168
 169 /*
 170  * NOR flash
 171  */
 172 static struct physmap_flash_data cpuat9260_nor_data = {
 173         .width          = 2,
 174 };
 175
 176 #define NOR_BASE        AT91_CHIPSELECT_0
 177 #define NOR_SIZE        SZ_64M
 178
 179 static struct resource nor_flash_resources[] = {
 180         {
 181                 .start  = NOR_BASE,
 182                 .end    = NOR_BASE + NOR_SIZE - 1,
 183                 .flags  = IORESOURCE_MEM,
 184         }
 185 };
 186
 187 static struct platform_device cpu9krea_nor_flash = {
 188         .name           = "physmap-flash",
 189         .id             = 0,
 190         .dev            = {
 191                 .platform_data  = &cpuat9260_nor_data,
 192         },
 193         .resource       = nor_flash_resources,
 194         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 195 };
 196
 197 #ifdef CONFIG_MACH_CPU9260
 198 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 199         .ncs_read_setup         = 0,
 200         .nrd_setup              = 1,
 201         .ncs_write_setup        = 0,
 202         .nwe_setup              = 1,
 203
 204         .ncs_read_pulse         = 10,
 205         .nrd_pulse              = 10,
 206         .ncs_write_pulse        = 6,
 207         .nwe_pulse              = 6,
 208
 209         .read_cycle             = 12,
 210         .write_cycle            = 8,
 211
 212         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 213                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 214                         | AT91_SMC_DBW_16,
 215         .tdf_cycles             = 2,
 216 };
 217 #else
 218 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 219         .ncs_read_setup         = 0,
 220         .nrd_setup              = 1,
 221         .ncs_write_setup        = 0,
 222         .nwe_setup              = 1,
 223
 224         .ncs_read_pulse         = 13,
 225         .nrd_pulse              = 13,
 226         .ncs_write_pulse        = 8,
 227         .nwe_pulse              = 8,
 228
 229         .read_cycle             = 15,
 230         .write_cycle            = 10,
 231
 232         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 233                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 234                         | AT91_SMC_DBW_16,
 235         .tdf_cycles             = 2,
 236 };
 237 #endif
 238
 239 static __init void cpu9krea_add_device_nor(void)
 240 {
 241         unsigned long csa;
 242
 243         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
 244         at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
 245
 246         /* configure chip-select 0 (NOR) */
 247         sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
 248
 249         platform_device_register(&cpu9krea_nor_flash);
 250 }
 251
 252 /*
 253  * LEDs
 254  */
 255 static struct gpio_led cpu9krea_leds[] = {
 256         {       /* LED1 */
 257                 .name                   = "LED1",
 258                 .gpio                   = AT91_PIN_PC11,
 259                 .active_low             = 1,
 260                 .default_trigger        = "timer",
 261         },
 262         {       /* LED2 */
 263                 .name                   = "LED2",
 264                 .gpio                   = AT91_PIN_PC12,
 265                 .active_low             = 1,
 266                 .default_trigger        = "heartbeat",
 267         },
 268         {       /* LED3 */
 269                 .name                   = "LED3",
 270                 .gpio                   = AT91_PIN_PC7,
 271                 .active_low             = 1,
 272                 .default_trigger        = "none",
 273         },
 274         {       /* LED4 */
 275                 .name                   = "LED4",
 276                 .gpio                   = AT91_PIN_PC9,
 277                 .active_low             = 1,
 278                 .default_trigger        = "none",
 279         }
 280 };
 281
 282 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
 283         {
 284                 I2C_BOARD_INFO("rtc-ds1307", 0x68),
 285                 .type   = "ds1339",
 286         },
 287 };
 288
 289 /*
 290  * GPIO Buttons
 291  */
 292 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 293 static struct gpio_keys_button cpu9krea_buttons[] = {
 294         {
 295                 .gpio           = AT91_PIN_PC3,
 296                 .code           = BTN_0,
 297                 .desc           = "BP1",
 298                 .active_low     = 1,
 299                 .wakeup         = 1,
 300         },
 301         {
 302                 .gpio           = AT91_PIN_PB20,
 303                 .code           = BTN_1,
 304                 .desc           = "BP2",
 305                 .active_low     = 1,
 306                 .wakeup         = 1,
 307         }
 308 };
 309
 310 static struct gpio_keys_platform_data cpu9krea_button_data = {
 311         .buttons        = cpu9krea_buttons,
 312         .nbuttons       = ARRAY_SIZE(cpu9krea_buttons),
 313 };
 314
 315 static struct platform_device cpu9krea_button_device = {
 316         .name           = "gpio-keys",
 317         .id             = -1,
 318         .num_resources  = 0,
 319         .dev            = {
 320                 .platform_data  = &cpu9krea_button_data,
 321         }
 322 };
 323
 324 static void __init cpu9krea_add_device_buttons(void)
 325 {
 326         at91_set_gpio_input(AT91_PIN_PC3, 1);   /* BP1 */
 327         at91_set_deglitch(AT91_PIN_PC3, 1);
 328         at91_set_gpio_input(AT91_PIN_PB20, 1);  /* BP2 */
 329         at91_set_deglitch(AT91_PIN_PB20, 1);
 330
 331         platform_device_register(&cpu9krea_button_device);
 332 }
 333 #else
 334 static void __init cpu9krea_add_device_buttons(void)
 335 {
 336 }
 337 #endif
 338
 339 /*
 340  * MCI (SD/MMC)
 341  */
 342 static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
 343         .slot_b         = 0,
 344         .wire4          = 1,
 345         .det_pin        = AT91_PIN_PA29,
 346         .wp_pin         = -EINVAL,
 347         .vcc_pin        = -EINVAL,
 348 };
 349
 350 static void __init cpu9krea_board_init(void)
 351 {
 352         /* NOR */
 353         cpu9krea_add_device_nor();
 354         /* Serial */
 355         at91_add_device_serial();
 356         /* USB Host */
 357         at91_add_device_usbh(&cpu9krea_usbh_data);
 358         /* USB Device */
 359         at91_add_device_udc(&cpu9krea_udc_data);
 360         /* NAND */
 361         cpu9krea_add_device_nand();
 362         /* Ethernet */
 363         at91_add_device_eth(&cpu9krea_macb_data);
 364         /* MMC */
 365         at91_add_device_mmc(0, &cpu9krea_mmc_data);
 366         /* I2C */
 367         at91_add_device_i2c(cpu9krea_i2c_devices,
 368                 ARRAY_SIZE(cpu9krea_i2c_devices));
 369         /* LEDs */
 370         at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
 371         /* Push Buttons */
 372         cpu9krea_add_device_buttons();
 373 }
 374
 375 #ifdef CONFIG_MACH_CPU9260
 376 MACHINE_START(CPUAT9260, "Eukrea CPU9260")
 377 #else
 378 MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
 379 #endif
 380         /* Maintainer: Eric Benard - EUKREA Electromatique */
 381         .timer          = &at91sam926x_timer,
 382         .map_io         = at91_map_io,
 383         .init_early     = cpu9krea_init_early,
 384         .init_irq       = at91_init_irq_default,
 385         .init_machine   = cpu9krea_board_init,
 386 MACHINE_END