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
  47 #include "sam9_smc.h"
  48 #include "generic.h"
  49
  50 static void __init cpu9krea_init_early(void)
  51 {
  52         /* Initialize processor: 18.432 MHz crystal */
  53         at91_initialize(18432000);
  54
  55         /* DGBU on ttyS0. (Rx & Tx only) */
  56         at91_register_uart(0, 0, 0);
  57
  58         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  59         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
  60                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
  61                 ATMEL_UART_DCD | ATMEL_UART_RI);
  62
  63         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  64         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
  65                 ATMEL_UART_RTS);
  66
  67         /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
  68         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
  69                 ATMEL_UART_RTS);
  70
  71         /* USART3 on ttyS4. (Rx, Tx) */
  72         at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
  73
  74         /* USART4 on ttyS5. (Rx, Tx) */
  75         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
  76
  77         /* USART5 on ttyS6. (Rx, Tx) */
  78         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
  79
  80         /* set serial console to ttyS0 (ie, DBGU) */
  81         at91_set_serial_console(0);
  82 }
  83
  84 /*
  85  * USB Host port
  86  */
  87 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
  88         .ports          = 2,
  89         .vbus_pin       = {-EINVAL, -EINVAL},
  90         .overcurrent_pin= {-EINVAL, -EINVAL},
  91 };
  92
  93 /*
  94  * USB Device port
  95  */
  96 static struct at91_udc_data __initdata cpu9krea_udc_data = {
  97         .vbus_pin       = AT91_PIN_PC8,
  98         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  99 };
 100
 101 /*
 102  * MACB Ethernet device
 103  */
 104 static struct macb_platform_data __initdata cpu9krea_macb_data = {
 105         .phy_irq_pin    = -EINVAL,
 106         .is_rmii        = 1,
 107 };
 108
 109 /*
 110  * NAND flash
 111  */
 112 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
 113         .ale            = 21,
 114         .cle            = 22,
 115         .rdy_pin        = AT91_PIN_PC13,
 116         .enable_pin     = AT91_PIN_PC14,
 117         .bus_width_16   = 0,
 118         .det_pin        = -EINVAL,
 119 };
 120
 121 #ifdef CONFIG_MACH_CPU9260
 122 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 123         .ncs_read_setup         = 0,
 124         .nrd_setup              = 1,
 125         .ncs_write_setup        = 0,
 126         .nwe_setup              = 1,
 127
 128         .ncs_read_pulse         = 3,
 129         .nrd_pulse              = 3,
 130         .ncs_write_pulse        = 3,
 131         .nwe_pulse              = 3,
 132
 133         .read_cycle             = 5,
 134         .write_cycle            = 5,
 135
 136         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 137                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 138         .tdf_cycles             = 2,
 139 };
 140 #else
 141 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 142         .ncs_read_setup         = 0,
 143         .nrd_setup              = 2,
 144         .ncs_write_setup        = 0,
 145         .nwe_setup              = 2,
 146
 147         .ncs_read_pulse         = 4,
 148         .nrd_pulse              = 4,
 149         .ncs_write_pulse        = 4,
 150         .nwe_pulse              = 4,
 151
 152         .read_cycle             = 7,
 153         .write_cycle            = 7,
 154
 155         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 156                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 157         .tdf_cycles             = 3,
 158 };
 159 #endif
 160
 161 static void __init cpu9krea_add_device_nand(void)
 162 {
 163         sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
 164         at91_add_device_nand(&cpu9krea_nand_data);
 165 }
 166
 167 /*
 168  * NOR flash
 169  */
 170 static struct physmap_flash_data cpuat9260_nor_data = {
 171         .width          = 2,
 172 };
 173
 174 #define NOR_BASE        AT91_CHIPSELECT_0
 175 #define NOR_SIZE        SZ_64M
 176
 177 static struct resource nor_flash_resources[] = {
 178         {
 179                 .start  = NOR_BASE,
 180                 .end    = NOR_BASE + NOR_SIZE - 1,
 181                 .flags  = IORESOURCE_MEM,
 182         }
 183 };
 184
 185 static struct platform_device cpu9krea_nor_flash = {
 186         .name           = "physmap-flash",
 187         .id             = 0,
 188         .dev            = {
 189                 .platform_data  = &cpuat9260_nor_data,
 190         },
 191         .resource       = nor_flash_resources,
 192         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 193 };
 194
 195 #ifdef CONFIG_MACH_CPU9260
 196 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 197         .ncs_read_setup         = 0,
 198         .nrd_setup              = 1,
 199         .ncs_write_setup        = 0,
 200         .nwe_setup              = 1,
 201
 202         .ncs_read_pulse         = 10,
 203         .nrd_pulse              = 10,
 204         .ncs_write_pulse        = 6,
 205         .nwe_pulse              = 6,
 206
 207         .read_cycle             = 12,
 208         .write_cycle            = 8,
 209
 210         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 211                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 212                         | AT91_SMC_DBW_16,
 213         .tdf_cycles             = 2,
 214 };
 215 #else
 216 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 217         .ncs_read_setup         = 0,
 218         .nrd_setup              = 1,
 219         .ncs_write_setup        = 0,
 220         .nwe_setup              = 1,
 221
 222         .ncs_read_pulse         = 13,
 223         .nrd_pulse              = 13,
 224         .ncs_write_pulse        = 8,
 225         .nwe_pulse              = 8,
 226
 227         .read_cycle             = 15,
 228         .write_cycle            = 10,
 229
 230         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 231                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 232                         | AT91_SMC_DBW_16,
 233         .tdf_cycles             = 2,
 234 };
 235 #endif
 236
 237 static __init void cpu9krea_add_device_nor(void)
 238 {
 239         unsigned long csa;
 240
 241         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 242         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
 243
 244         /* configure chip-select 0 (NOR) */
 245         sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
 246
 247         platform_device_register(&cpu9krea_nor_flash);
 248 }
 249
 250 /*
 251  * LEDs
 252  */
 253 static struct gpio_led cpu9krea_leds[] = {
 254         {       /* LED1 */
 255                 .name                   = "LED1",
 256                 .gpio                   = AT91_PIN_PC11,
 257                 .active_low             = 1,
 258                 .default_trigger        = "timer",
 259         },
 260         {       /* LED2 */
 261                 .name                   = "LED2",
 262                 .gpio                   = AT91_PIN_PC12,
 263                 .active_low             = 1,
 264                 .default_trigger        = "heartbeat",
 265         },
 266         {       /* LED3 */
 267                 .name                   = "LED3",
 268                 .gpio                   = AT91_PIN_PC7,
 269                 .active_low             = 1,
 270                 .default_trigger        = "none",
 271         },
 272         {       /* LED4 */
 273                 .name                   = "LED4",
 274                 .gpio                   = AT91_PIN_PC9,
 275                 .active_low             = 1,
 276                 .default_trigger        = "none",
 277         }
 278 };
 279
 280 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
 281         {
 282                 I2C_BOARD_INFO("rtc-ds1307", 0x68),
 283                 .type   = "ds1339",
 284         },
 285 };
 286
 287 /*
 288  * GPIO Buttons
 289  */
 290 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 291 static struct gpio_keys_button cpu9krea_buttons[] = {
 292         {
 293                 .gpio           = AT91_PIN_PC3,
 294                 .code           = BTN_0,
 295                 .desc           = "BP1",
 296                 .active_low     = 1,
 297                 .wakeup         = 1,
 298         },
 299         {
 300                 .gpio           = AT91_PIN_PB20,
 301                 .code           = BTN_1,
 302                 .desc           = "BP2",
 303                 .active_low     = 1,
 304                 .wakeup         = 1,
 305         }
 306 };
 307
 308 static struct gpio_keys_platform_data cpu9krea_button_data = {
 309         .buttons        = cpu9krea_buttons,
 310         .nbuttons       = ARRAY_SIZE(cpu9krea_buttons),
 311 };
 312
 313 static struct platform_device cpu9krea_button_device = {
 314         .name           = "gpio-keys",
 315         .id             = -1,
 316         .num_resources  = 0,
 317         .dev            = {
 318                 .platform_data  = &cpu9krea_button_data,
 319         }
 320 };
 321
 322 static void __init cpu9krea_add_device_buttons(void)
 323 {
 324         at91_set_gpio_input(AT91_PIN_PC3, 1);   /* BP1 */
 325         at91_set_deglitch(AT91_PIN_PC3, 1);
 326         at91_set_gpio_input(AT91_PIN_PB20, 1);  /* BP2 */
 327         at91_set_deglitch(AT91_PIN_PB20, 1);
 328
 329         platform_device_register(&cpu9krea_button_device);
 330 }
 331 #else
 332 static void __init cpu9krea_add_device_buttons(void)
 333 {
 334 }
 335 #endif
 336
 337 /*
 338  * MCI (SD/MMC)
 339  */
 340 static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
 341         .slot_b         = 0,
 342         .wire4          = 1,
 343         .det_pin        = AT91_PIN_PA29,
 344         .wp_pin         = -EINVAL,
 345         .vcc_pin        = -EINVAL,
 346 };
 347
 348 static void __init cpu9krea_board_init(void)
 349 {
 350         /* NOR */
 351         cpu9krea_add_device_nor();
 352         /* Serial */
 353         at91_add_device_serial();
 354         /* USB Host */
 355         at91_add_device_usbh(&cpu9krea_usbh_data);
 356         /* USB Device */
 357         at91_add_device_udc(&cpu9krea_udc_data);
 358         /* NAND */
 359         cpu9krea_add_device_nand();
 360         /* Ethernet */
 361         at91_add_device_eth(&cpu9krea_macb_data);
 362         /* MMC */
 363         at91_add_device_mmc(0, &cpu9krea_mmc_data);
 364         /* I2C */
 365         at91_add_device_i2c(cpu9krea_i2c_devices,
 366                 ARRAY_SIZE(cpu9krea_i2c_devices));
 367         /* LEDs */
 368         at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
 369         /* Push Buttons */
 370         cpu9krea_add_device_buttons();
 371 }
 372
 373 #ifdef CONFIG_MACH_CPU9260
 374 MACHINE_START(CPUAT9260, "Eukrea CPU9260")
 375 #else
 376 MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
 377 #endif
 378         /* Maintainer: Eric Benard - EUKREA Electromatique */
 379         .timer          = &at91sam926x_timer,
 380         .map_io         = at91_map_io,
 381         .init_early     = cpu9krea_init_early,
 382         .init_irq       = at91_init_irq_default,
 383         .init_machine   = cpu9krea_board_init,
 384 MACHINE_END