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/at91sam9_smc.h>
  44 #include <mach/at91sam9260_matrix.h>
  45 #include <mach/at91_matrix.h>
  46
  47 #include "at91_aic.h"
  48 #include "board.h"
  49 #include "sam9_smc.h"
  50 #include "generic.h"
  51 #include "gpio.h"
  52
  53 static void __init cpu9krea_init_early(void)
  54 {
  55         /* Initialize processor: 18.432 MHz crystal */
  56         at91_initialize(18432000);
  57 }
  58
  59 /*
  60  * USB Host port
  61  */
  62 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
  63         .ports          = 2,
  64         .vbus_pin       = {-EINVAL, -EINVAL},
  65         .overcurrent_pin= {-EINVAL, -EINVAL},
  66 };
  67
  68 /*
  69  * USB Device port
  70  */
  71 static struct at91_udc_data __initdata cpu9krea_udc_data = {
  72         .vbus_pin       = AT91_PIN_PC8,
  73         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  74 };
  75
  76 /*
  77  * MACB Ethernet device
  78  */
  79 static struct macb_platform_data __initdata cpu9krea_macb_data = {
  80         .phy_irq_pin    = -EINVAL,
  81         .is_rmii        = 1,
  82 };
  83
  84 /*
  85  * NAND flash
  86  */
  87 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
  88         .ale            = 21,
  89         .cle            = 22,
  90         .rdy_pin        = AT91_PIN_PC13,
  91         .enable_pin     = AT91_PIN_PC14,
  92         .bus_width_16   = 0,
  93         .det_pin        = -EINVAL,
  94         .ecc_mode       = NAND_ECC_SOFT,
  95 };
  96
  97 #ifdef CONFIG_MACH_CPU9260
  98 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
  99         .ncs_read_setup         = 0,
 100         .nrd_setup              = 1,
 101         .ncs_write_setup        = 0,
 102         .nwe_setup              = 1,
 103
 104         .ncs_read_pulse         = 3,
 105         .nrd_pulse              = 3,
 106         .ncs_write_pulse        = 3,
 107         .nwe_pulse              = 3,
 108
 109         .read_cycle             = 5,
 110         .write_cycle            = 5,
 111
 112         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 113                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 114         .tdf_cycles             = 2,
 115 };
 116 #else
 117 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 118         .ncs_read_setup         = 0,
 119         .nrd_setup              = 2,
 120         .ncs_write_setup        = 0,
 121         .nwe_setup              = 2,
 122
 123         .ncs_read_pulse         = 4,
 124         .nrd_pulse              = 4,
 125         .ncs_write_pulse        = 4,
 126         .nwe_pulse              = 4,
 127
 128         .read_cycle             = 7,
 129         .write_cycle            = 7,
 130
 131         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 132                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 133         .tdf_cycles             = 3,
 134 };
 135 #endif
 136
 137 static void __init cpu9krea_add_device_nand(void)
 138 {
 139         sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
 140         at91_add_device_nand(&cpu9krea_nand_data);
 141 }
 142
 143 /*
 144  * NOR flash
 145  */
 146 static struct physmap_flash_data cpuat9260_nor_data = {
 147         .width          = 2,
 148 };
 149
 150 #define NOR_BASE        AT91_CHIPSELECT_0
 151 #define NOR_SIZE        SZ_64M
 152
 153 static struct resource nor_flash_resources[] = {
 154         {
 155                 .start  = NOR_BASE,
 156                 .end    = NOR_BASE + NOR_SIZE - 1,
 157                 .flags  = IORESOURCE_MEM,
 158         }
 159 };
 160
 161 static struct platform_device cpu9krea_nor_flash = {
 162         .name           = "physmap-flash",
 163         .id             = 0,
 164         .dev            = {
 165                 .platform_data  = &cpuat9260_nor_data,
 166         },
 167         .resource       = nor_flash_resources,
 168         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 169 };
 170
 171 #ifdef CONFIG_MACH_CPU9260
 172 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 173         .ncs_read_setup         = 0,
 174         .nrd_setup              = 1,
 175         .ncs_write_setup        = 0,
 176         .nwe_setup              = 1,
 177
 178         .ncs_read_pulse         = 10,
 179         .nrd_pulse              = 10,
 180         .ncs_write_pulse        = 6,
 181         .nwe_pulse              = 6,
 182
 183         .read_cycle             = 12,
 184         .write_cycle            = 8,
 185
 186         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 187                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 188                         | AT91_SMC_DBW_16,
 189         .tdf_cycles             = 2,
 190 };
 191 #else
 192 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 193         .ncs_read_setup         = 0,
 194         .nrd_setup              = 1,
 195         .ncs_write_setup        = 0,
 196         .nwe_setup              = 1,
 197
 198         .ncs_read_pulse         = 13,
 199         .nrd_pulse              = 13,
 200         .ncs_write_pulse        = 8,
 201         .nwe_pulse              = 8,
 202
 203         .read_cycle             = 15,
 204         .write_cycle            = 10,
 205
 206         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 207                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 208                         | AT91_SMC_DBW_16,
 209         .tdf_cycles             = 2,
 210 };
 211 #endif
 212
 213 static __init void cpu9krea_add_device_nor(void)
 214 {
 215         unsigned long csa;
 216
 217         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
 218         at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
 219
 220         /* configure chip-select 0 (NOR) */
 221         sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
 222
 223         platform_device_register(&cpu9krea_nor_flash);
 224 }
 225
 226 /*
 227  * LEDs
 228  */
 229 static struct gpio_led cpu9krea_leds[] = {
 230         {       /* LED1 */
 231                 .name                   = "LED1",
 232                 .gpio                   = AT91_PIN_PC11,
 233                 .active_low             = 1,
 234                 .default_trigger        = "timer",
 235         },
 236         {       /* LED2 */
 237                 .name                   = "LED2",
 238                 .gpio                   = AT91_PIN_PC12,
 239                 .active_low             = 1,
 240                 .default_trigger        = "heartbeat",
 241         },
 242         {       /* LED3 */
 243                 .name                   = "LED3",
 244                 .gpio                   = AT91_PIN_PC7,
 245                 .active_low             = 1,
 246                 .default_trigger        = "none",
 247         },
 248         {       /* LED4 */
 249                 .name                   = "LED4",
 250                 .gpio                   = AT91_PIN_PC9,
 251                 .active_low             = 1,
 252                 .default_trigger        = "none",
 253         }
 254 };
 255
 256 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
 257         {
 258                 I2C_BOARD_INFO("ds1339", 0x68),
 259         },
 260 };
 261
 262 /*
 263  * GPIO Buttons
 264  */
 265 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 266 static struct gpio_keys_button cpu9krea_buttons[] = {
 267         {
 268                 .gpio           = AT91_PIN_PC3,
 269                 .code           = BTN_0,
 270                 .desc           = "BP1",
 271                 .active_low     = 1,
 272                 .wakeup         = 1,
 273         },
 274         {
 275                 .gpio           = AT91_PIN_PB20,
 276                 .code           = BTN_1,
 277                 .desc           = "BP2",
 278                 .active_low     = 1,
 279                 .wakeup         = 1,
 280         }
 281 };
 282
 283 static struct gpio_keys_platform_data cpu9krea_button_data = {
 284         .buttons        = cpu9krea_buttons,
 285         .nbuttons       = ARRAY_SIZE(cpu9krea_buttons),
 286 };
 287
 288 static struct platform_device cpu9krea_button_device = {
 289         .name           = "gpio-keys",
 290         .id             = -1,
 291         .num_resources  = 0,
 292         .dev            = {
 293                 .platform_data  = &cpu9krea_button_data,
 294         }
 295 };
 296
 297 static void __init cpu9krea_add_device_buttons(void)
 298 {
 299         at91_set_gpio_input(AT91_PIN_PC3, 1);   /* BP1 */
 300         at91_set_deglitch(AT91_PIN_PC3, 1);
 301         at91_set_gpio_input(AT91_PIN_PB20, 1);  /* BP2 */
 302         at91_set_deglitch(AT91_PIN_PB20, 1);
 303
 304         platform_device_register(&cpu9krea_button_device);
 305 }
 306 #else
 307 static void __init cpu9krea_add_device_buttons(void)
 308 {
 309 }
 310 #endif
 311
 312 /*
 313  * MCI (SD/MMC)
 314  */
 315 static struct mci_platform_data __initdata cpu9krea_mci0_data = {
 316         .slot[0] = {
 317                 .bus_width      = 4,
 318                 .detect_pin     = AT91_PIN_PA29,
 319                 .wp_pin         = -EINVAL,
 320         },
 321 };
 322
 323 static void __init cpu9krea_board_init(void)
 324 {
 325         /* NOR */
 326         cpu9krea_add_device_nor();
 327         /* Serial */
 328         /* DGBU on ttyS0. (Rx & Tx only) */
 329         at91_register_uart(0, 0, 0);
 330
 331         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 332         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
 333                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
 334                 ATMEL_UART_DCD | ATMEL_UART_RI);
 335
 336         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 337         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
 338                 ATMEL_UART_RTS);
 339
 340         /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
 341         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
 342                 ATMEL_UART_RTS);
 343
 344         /* USART3 on ttyS4. (Rx, Tx) */
 345         at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
 346
 347         /* USART4 on ttyS5. (Rx, Tx) */
 348         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
 349
 350         /* USART5 on ttyS6. (Rx, Tx) */
 351         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
 352         at91_add_device_serial();
 353         /* USB Host */
 354         at91_add_device_usbh(&cpu9krea_usbh_data);
 355         /* USB Device */
 356         at91_add_device_udc(&cpu9krea_udc_data);
 357         /* NAND */
 358         cpu9krea_add_device_nand();
 359         /* Ethernet */
 360         at91_add_device_eth(&cpu9krea_macb_data);
 361         /* MMC */
 362         at91_add_device_mci(0, &cpu9krea_mci0_data);
 363         /* I2C */
 364         at91_add_device_i2c(cpu9krea_i2c_devices,
 365                 ARRAY_SIZE(cpu9krea_i2c_devices));
 366         /* LEDs */
 367         at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
 368         /* Push Buttons */
 369         cpu9krea_add_device_buttons();
 370 }
 371
 372 #ifdef CONFIG_MACH_CPU9260
 373 MACHINE_START(CPUAT9260, "Eukrea CPU9260")
 374 #else
 375 MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
 376 #endif
 377         /* Maintainer: Eric Benard - EUKREA Electromatique */
 378         .init_time      = at91sam926x_pit_init,
 379         .map_io         = at91_map_io,
 380         .handle_irq     = at91_aic_handle_irq,
 381         .init_early     = cpu9krea_init_early,
 382         .init_irq       = at91_init_irq_default,
 383         .init_machine   = cpu9krea_board_init,
 384 MACHINE_END