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
  57 /*
  58  * USB Host port
  59  */
  60 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
  61         .ports          = 2,
  62         .vbus_pin       = {-EINVAL, -EINVAL},
  63         .overcurrent_pin= {-EINVAL, -EINVAL},
  64 };
  65
  66 /*
  67  * USB Device port
  68  */
  69 static struct at91_udc_data __initdata cpu9krea_udc_data = {
  70         .vbus_pin       = AT91_PIN_PC8,
  71         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  72 };
  73
  74 /*
  75  * MACB Ethernet device
  76  */
  77 static struct macb_platform_data __initdata cpu9krea_macb_data = {
  78         .phy_irq_pin    = -EINVAL,
  79         .is_rmii        = 1,
  80 };
  81
  82 /*
  83  * NAND flash
  84  */
  85 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
  86         .ale            = 21,
  87         .cle            = 22,
  88         .rdy_pin        = AT91_PIN_PC13,
  89         .enable_pin     = AT91_PIN_PC14,
  90         .bus_width_16   = 0,
  91         .det_pin        = -EINVAL,
  92         .ecc_mode       = NAND_ECC_SOFT,
  93 };
  94
  95 #ifdef CONFIG_MACH_CPU9260
  96 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
  97         .ncs_read_setup         = 0,
  98         .nrd_setup              = 1,
  99         .ncs_write_setup        = 0,
 100         .nwe_setup              = 1,
 101
 102         .ncs_read_pulse         = 3,
 103         .nrd_pulse              = 3,
 104         .ncs_write_pulse        = 3,
 105         .nwe_pulse              = 3,
 106
 107         .read_cycle             = 5,
 108         .write_cycle            = 5,
 109
 110         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 111                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 112         .tdf_cycles             = 2,
 113 };
 114 #else
 115 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 116         .ncs_read_setup         = 0,
 117         .nrd_setup              = 2,
 118         .ncs_write_setup        = 0,
 119         .nwe_setup              = 2,
 120
 121         .ncs_read_pulse         = 4,
 122         .nrd_pulse              = 4,
 123         .ncs_write_pulse        = 4,
 124         .nwe_pulse              = 4,
 125
 126         .read_cycle             = 7,
 127         .write_cycle            = 7,
 128
 129         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 130                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 131         .tdf_cycles             = 3,
 132 };
 133 #endif
 134
 135 static void __init cpu9krea_add_device_nand(void)
 136 {
 137         sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
 138         at91_add_device_nand(&cpu9krea_nand_data);
 139 }
 140
 141 /*
 142  * NOR flash
 143  */
 144 static struct physmap_flash_data cpuat9260_nor_data = {
 145         .width          = 2,
 146 };
 147
 148 #define NOR_BASE        AT91_CHIPSELECT_0
 149 #define NOR_SIZE        SZ_64M
 150
 151 static struct resource nor_flash_resources[] = {
 152         {
 153                 .start  = NOR_BASE,
 154                 .end    = NOR_BASE + NOR_SIZE - 1,
 155                 .flags  = IORESOURCE_MEM,
 156         }
 157 };
 158
 159 static struct platform_device cpu9krea_nor_flash = {
 160         .name           = "physmap-flash",
 161         .id             = 0,
 162         .dev            = {
 163                 .platform_data  = &cpuat9260_nor_data,
 164         },
 165         .resource       = nor_flash_resources,
 166         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 167 };
 168
 169 #ifdef CONFIG_MACH_CPU9260
 170 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 171         .ncs_read_setup         = 0,
 172         .nrd_setup              = 1,
 173         .ncs_write_setup        = 0,
 174         .nwe_setup              = 1,
 175
 176         .ncs_read_pulse         = 10,
 177         .nrd_pulse              = 10,
 178         .ncs_write_pulse        = 6,
 179         .nwe_pulse              = 6,
 180
 181         .read_cycle             = 12,
 182         .write_cycle            = 8,
 183
 184         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 185                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 186                         | AT91_SMC_DBW_16,
 187         .tdf_cycles             = 2,
 188 };
 189 #else
 190 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 191         .ncs_read_setup         = 0,
 192         .nrd_setup              = 1,
 193         .ncs_write_setup        = 0,
 194         .nwe_setup              = 1,
 195
 196         .ncs_read_pulse         = 13,
 197         .nrd_pulse              = 13,
 198         .ncs_write_pulse        = 8,
 199         .nwe_pulse              = 8,
 200
 201         .read_cycle             = 15,
 202         .write_cycle            = 10,
 203
 204         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 205                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 206                         | AT91_SMC_DBW_16,
 207         .tdf_cycles             = 2,
 208 };
 209 #endif
 210
 211 static __init void cpu9krea_add_device_nor(void)
 212 {
 213         unsigned long csa;
 214
 215         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
 216         at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
 217
 218         /* configure chip-select 0 (NOR) */
 219         sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
 220
 221         platform_device_register(&cpu9krea_nor_flash);
 222 }
 223
 224 /*
 225  * LEDs
 226  */
 227 static struct gpio_led cpu9krea_leds[] = {
 228         {       /* LED1 */
 229                 .name                   = "LED1",
 230                 .gpio                   = AT91_PIN_PC11,
 231                 .active_low             = 1,
 232                 .default_trigger        = "timer",
 233         },
 234         {       /* LED2 */
 235                 .name                   = "LED2",
 236                 .gpio                   = AT91_PIN_PC12,
 237                 .active_low             = 1,
 238                 .default_trigger        = "heartbeat",
 239         },
 240         {       /* LED3 */
 241                 .name                   = "LED3",
 242                 .gpio                   = AT91_PIN_PC7,
 243                 .active_low             = 1,
 244                 .default_trigger        = "none",
 245         },
 246         {       /* LED4 */
 247                 .name                   = "LED4",
 248                 .gpio                   = AT91_PIN_PC9,
 249                 .active_low             = 1,
 250                 .default_trigger        = "none",
 251         }
 252 };
 253
 254 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
 255         {
 256                 I2C_BOARD_INFO("rtc-ds1307", 0x68),
 257                 .type   = "ds1339",
 258         },
 259 };
 260
 261 /*
 262  * GPIO Buttons
 263  */
 264 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 265 static struct gpio_keys_button cpu9krea_buttons[] = {
 266         {
 267                 .gpio           = AT91_PIN_PC3,
 268                 .code           = BTN_0,
 269                 .desc           = "BP1",
 270                 .active_low     = 1,
 271                 .wakeup         = 1,
 272         },
 273         {
 274                 .gpio           = AT91_PIN_PB20,
 275                 .code           = BTN_1,
 276                 .desc           = "BP2",
 277                 .active_low     = 1,
 278                 .wakeup         = 1,
 279         }
 280 };
 281
 282 static struct gpio_keys_platform_data cpu9krea_button_data = {
 283         .buttons        = cpu9krea_buttons,
 284         .nbuttons       = ARRAY_SIZE(cpu9krea_buttons),
 285 };
 286
 287 static struct platform_device cpu9krea_button_device = {
 288         .name           = "gpio-keys",
 289         .id             = -1,
 290         .num_resources  = 0,
 291         .dev            = {
 292                 .platform_data  = &cpu9krea_button_data,
 293         }
 294 };
 295
 296 static void __init cpu9krea_add_device_buttons(void)
 297 {
 298         at91_set_gpio_input(AT91_PIN_PC3, 1);   /* BP1 */
 299         at91_set_deglitch(AT91_PIN_PC3, 1);
 300         at91_set_gpio_input(AT91_PIN_PB20, 1);  /* BP2 */
 301         at91_set_deglitch(AT91_PIN_PB20, 1);
 302
 303         platform_device_register(&cpu9krea_button_device);
 304 }
 305 #else
 306 static void __init cpu9krea_add_device_buttons(void)
 307 {
 308 }
 309 #endif
 310
 311 /*
 312  * MCI (SD/MMC)
 313  */
 314 static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
 315         .slot_b         = 0,
 316         .wire4          = 1,
 317         .det_pin        = AT91_PIN_PA29,
 318         .wp_pin         = -EINVAL,
 319         .vcc_pin        = -EINVAL,
 320 };
 321
 322 static void __init cpu9krea_board_init(void)
 323 {
 324         /* NOR */
 325         cpu9krea_add_device_nor();
 326         /* Serial */
 327         /* DGBU on ttyS0. (Rx & Tx only) */
 328         at91_register_uart(0, 0, 0);
 329
 330         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 331         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
 332                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
 333                 ATMEL_UART_DCD | ATMEL_UART_RI);
 334
 335         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 336         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
 337                 ATMEL_UART_RTS);
 338
 339         /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
 340         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
 341                 ATMEL_UART_RTS);
 342
 343         /* USART3 on ttyS4. (Rx, Tx) */
 344         at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
 345
 346         /* USART4 on ttyS5. (Rx, Tx) */
 347         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
 348
 349         /* USART5 on ttyS6. (Rx, Tx) */
 350         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
 351         at91_add_device_serial();
 352         /* USB Host */
 353         at91_add_device_usbh(&cpu9krea_usbh_data);
 354         /* USB Device */
 355         at91_add_device_udc(&cpu9krea_udc_data);
 356         /* NAND */
 357         cpu9krea_add_device_nand();
 358         /* Ethernet */
 359         at91_add_device_eth(&cpu9krea_macb_data);
 360         /* MMC */
 361         at91_add_device_mmc(0, &cpu9krea_mmc_data);
 362         /* I2C */
 363         at91_add_device_i2c(cpu9krea_i2c_devices,
 364                 ARRAY_SIZE(cpu9krea_i2c_devices));
 365         /* LEDs */
 366         at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
 367         /* Push Buttons */
 368         cpu9krea_add_device_buttons();
 369 }
 370
 371 #ifdef CONFIG_MACH_CPU9260
 372 MACHINE_START(CPUAT9260, "Eukrea CPU9260")
 373 #else
 374 MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
 375 #endif
 376         /* Maintainer: Eric Benard - EUKREA Electromatique */
 377         .timer          = &at91sam926x_timer,
 378         .map_io         = at91_map_io,
 379         .init_early     = cpu9krea_init_early,
 380         .init_irq       = at91_init_irq_default,
 381         .init_machine   = cpu9krea_board_init,
 382 MACHINE_END