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
  52 static void __init cpu9krea_init_early(void)
  53 {
  54         /* Initialize processor: 18.432 MHz crystal */
  55         at91_initialize(18432000);
  56 }
  57
  58 /*
  59  * USB Host port
  60  */
  61 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
  62         .ports          = 2,
  63         .vbus_pin       = {-EINVAL, -EINVAL},
  64         .overcurrent_pin= {-EINVAL, -EINVAL},
  65 };
  66
  67 /*
  68  * USB Device port
  69  */
  70 static struct at91_udc_data __initdata cpu9krea_udc_data = {
  71         .vbus_pin       = AT91_PIN_PC8,
  72         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  73 };
  74
  75 /*
  76  * MACB Ethernet device
  77  */
  78 static struct macb_platform_data __initdata cpu9krea_macb_data = {
  79         .phy_irq_pin    = -EINVAL,
  80         .is_rmii        = 1,
  81 };
  82
  83 /*
  84  * NAND flash
  85  */
  86 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
  87         .ale            = 21,
  88         .cle            = 22,
  89         .rdy_pin        = AT91_PIN_PC13,
  90         .enable_pin     = AT91_PIN_PC14,
  91         .bus_width_16   = 0,
  92         .det_pin        = -EINVAL,
  93         .ecc_mode       = NAND_ECC_SOFT,
  94 };
  95
  96 #ifdef CONFIG_MACH_CPU9260
  97 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
  98         .ncs_read_setup         = 0,
  99         .nrd_setup              = 1,
 100         .ncs_write_setup        = 0,
 101         .nwe_setup              = 1,
 102
 103         .ncs_read_pulse         = 3,
 104         .nrd_pulse              = 3,
 105         .ncs_write_pulse        = 3,
 106         .nwe_pulse              = 3,
 107
 108         .read_cycle             = 5,
 109         .write_cycle            = 5,
 110
 111         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 112                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 113         .tdf_cycles             = 2,
 114 };
 115 #else
 116 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 117         .ncs_read_setup         = 0,
 118         .nrd_setup              = 2,
 119         .ncs_write_setup        = 0,
 120         .nwe_setup              = 2,
 121
 122         .ncs_read_pulse         = 4,
 123         .nrd_pulse              = 4,
 124         .ncs_write_pulse        = 4,
 125         .nwe_pulse              = 4,
 126
 127         .read_cycle             = 7,
 128         .write_cycle            = 7,
 129
 130         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 131                 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 132         .tdf_cycles             = 3,
 133 };
 134 #endif
 135
 136 static void __init cpu9krea_add_device_nand(void)
 137 {
 138         sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
 139         at91_add_device_nand(&cpu9krea_nand_data);
 140 }
 141
 142 /*
 143  * NOR flash
 144  */
 145 static struct physmap_flash_data cpuat9260_nor_data = {
 146         .width          = 2,
 147 };
 148
 149 #define NOR_BASE        AT91_CHIPSELECT_0
 150 #define NOR_SIZE        SZ_64M
 151
 152 static struct resource nor_flash_resources[] = {
 153         {
 154                 .start  = NOR_BASE,
 155                 .end    = NOR_BASE + NOR_SIZE - 1,
 156                 .flags  = IORESOURCE_MEM,
 157         }
 158 };
 159
 160 static struct platform_device cpu9krea_nor_flash = {
 161         .name           = "physmap-flash",
 162         .id             = 0,
 163         .dev            = {
 164                 .platform_data  = &cpuat9260_nor_data,
 165         },
 166         .resource       = nor_flash_resources,
 167         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 168 };
 169
 170 #ifdef CONFIG_MACH_CPU9260
 171 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 172         .ncs_read_setup         = 0,
 173         .nrd_setup              = 1,
 174         .ncs_write_setup        = 0,
 175         .nwe_setup              = 1,
 176
 177         .ncs_read_pulse         = 10,
 178         .nrd_pulse              = 10,
 179         .ncs_write_pulse        = 6,
 180         .nwe_pulse              = 6,
 181
 182         .read_cycle             = 12,
 183         .write_cycle            = 8,
 184
 185         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 186                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 187                         | AT91_SMC_DBW_16,
 188         .tdf_cycles             = 2,
 189 };
 190 #else
 191 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
 192         .ncs_read_setup         = 0,
 193         .nrd_setup              = 1,
 194         .ncs_write_setup        = 0,
 195         .nwe_setup              = 1,
 196
 197         .ncs_read_pulse         = 13,
 198         .nrd_pulse              = 13,
 199         .ncs_write_pulse        = 8,
 200         .nwe_pulse              = 8,
 201
 202         .read_cycle             = 15,
 203         .write_cycle            = 10,
 204
 205         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 206                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 207                         | AT91_SMC_DBW_16,
 208         .tdf_cycles             = 2,
 209 };
 210 #endif
 211
 212 static __init void cpu9krea_add_device_nor(void)
 213 {
 214         unsigned long csa;
 215
 216         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
 217         at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
 218
 219         /* configure chip-select 0 (NOR) */
 220         sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
 221
 222         platform_device_register(&cpu9krea_nor_flash);
 223 }
 224
 225 /*
 226  * LEDs
 227  */
 228 static struct gpio_led cpu9krea_leds[] = {
 229         {       /* LED1 */
 230                 .name                   = "LED1",
 231                 .gpio                   = AT91_PIN_PC11,
 232                 .active_low             = 1,
 233                 .default_trigger        = "timer",
 234         },
 235         {       /* LED2 */
 236                 .name                   = "LED2",
 237                 .gpio                   = AT91_PIN_PC12,
 238                 .active_low             = 1,
 239                 .default_trigger        = "heartbeat",
 240         },
 241         {       /* LED3 */
 242                 .name                   = "LED3",
 243                 .gpio                   = AT91_PIN_PC7,
 244                 .active_low             = 1,
 245                 .default_trigger        = "none",
 246         },
 247         {       /* LED4 */
 248                 .name                   = "LED4",
 249                 .gpio                   = AT91_PIN_PC9,
 250                 .active_low             = 1,
 251                 .default_trigger        = "none",
 252         }
 253 };
 254
 255 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
 256         {
 257                 I2C_BOARD_INFO("ds1339", 0x68),
 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 mci_platform_data __initdata cpu9krea_mci0_data = {
 315         .slot[0] = {
 316                 .bus_width      = 4,
 317                 .detect_pin     = AT91_PIN_PA29,
 318                 .wp_pin         = -EINVAL,
 319         },
 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_mci(0, &cpu9krea_mci0_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         .init_time      = at91sam926x_pit_init,
 378         .map_io         = at91_map_io,
 379         .handle_irq     = at91_aic_handle_irq,
 380         .init_early     = cpu9krea_init_early,
 381         .init_irq       = at91_init_irq_default,
 382         .init_machine   = cpu9krea_board_init,
 383 MACHINE_END