release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-kirkwood/netxbig_v2-setup.c

   1 /*
   2  * arch/arm/mach-kirkwood/netxbig_v2-setup.c
   3  *
   4  * LaCie 2Big and 5Big Network v2 board setup
   5  *
   6  * Copyright (C) 2010 Simon Guinot <sguinot@lacie.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/kernel.h>
  24 #include <linux/init.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/mtd/physmap.h>
  27 #include <linux/spi/flash.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/ata_platform.h>
  30 #include <linux/mv643xx_eth.h>
  31 #include <linux/i2c.h>
  32 #include <linux/i2c/at24.h>
  33 #include <linux/input.h>
  34 #include <linux/gpio.h>
  35 #include <linux/gpio_keys.h>
  36 #include <linux/leds.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/time.h>
  40 #include <mach/kirkwood.h>
  41 #include <plat/time.h>
  42 #include "common.h"
  43 #include "mpp.h"
  44
  45 /*****************************************************************************
  46  * 512KB SPI Flash on Boot Device (MACRONIX MX25L4005)
  47  ****************************************************************************/
  48
  49 static struct mtd_partition netxbig_v2_flash_parts[] = {
  50         {
  51                 .name = "u-boot",
  52                 .size = MTDPART_SIZ_FULL,
  53                 .offset = 0,
  54                 .mask_flags = MTD_WRITEABLE, /* force read-only */
  55         },
  56 };
  57
  58 static const struct flash_platform_data netxbig_v2_flash = {
  59         .type           = "mx25l4005a",
  60         .name           = "spi_flash",
  61         .parts          = netxbig_v2_flash_parts,
  62         .nr_parts       = ARRAY_SIZE(netxbig_v2_flash_parts),
  63 };
  64
  65 static struct spi_board_info __initdata netxbig_v2_spi_slave_info[] = {
  66         {
  67                 .modalias       = "m25p80",
  68                 .platform_data  = &netxbig_v2_flash,
  69                 .irq            = -1,
  70                 .max_speed_hz   = 20000000,
  71                 .bus_num        = 0,
  72                 .chip_select    = 0,
  73         },
  74 };
  75
  76 /*****************************************************************************
  77  * Ethernet
  78  ****************************************************************************/
  79
  80 static struct mv643xx_eth_platform_data netxbig_v2_ge00_data = {
  81         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  82 };
  83
  84 static struct mv643xx_eth_platform_data netxbig_v2_ge01_data = {
  85         .phy_addr       = MV643XX_ETH_PHY_ADDR(0),
  86 };
  87
  88 /*****************************************************************************
  89  * I2C devices
  90  ****************************************************************************/
  91
  92 static struct at24_platform_data at24c04 = {
  93         .byte_len       = SZ_4K / 8,
  94         .page_size      = 16,
  95 };
  96
  97 /*
  98  * i2c addr | chip         | description
  99  * 0x50     | HT24LC04     | eeprom (512B)
 100  */
 101
 102 static struct i2c_board_info __initdata netxbig_v2_i2c_info[] = {
 103         {
 104                 I2C_BOARD_INFO("24c04", 0x50),
 105                 .platform_data  = &at24c04,
 106         }
 107 };
 108
 109 /*****************************************************************************
 110  * SATA
 111  ****************************************************************************/
 112
 113 static struct mv_sata_platform_data netxbig_v2_sata_data = {
 114         .n_ports        = 2,
 115 };
 116
 117 static int __initdata netxbig_v2_gpio_hdd_power[] = { 16, 17, 41, 42, 43 };
 118
 119 static void __init netxbig_v2_sata_power_init(void)
 120 {
 121         int i;
 122         int err;
 123         int hdd_nb;
 124
 125         if (machine_is_net2big_v2())
 126                 hdd_nb = 2;
 127         else
 128                 hdd_nb = 5;
 129
 130         /* Power up all hard disks. */
 131         for (i = 0; i < hdd_nb; i++) {
 132                 err = gpio_request(netxbig_v2_gpio_hdd_power[i], NULL);
 133                 if (err == 0) {
 134                         err = gpio_direction_output(
 135                                         netxbig_v2_gpio_hdd_power[i], 1);
 136                         /* Free the HDD power GPIOs. This allow user-space to
 137                          * configure them via the gpiolib sysfs interface. */
 138                         gpio_free(netxbig_v2_gpio_hdd_power[i]);
 139                 }
 140                 if (err)
 141                         pr_err("netxbig_v2: failed to power up HDD%d\n", i + 1);
 142         }
 143 }
 144
 145 /*****************************************************************************
 146  * GPIO keys
 147  ****************************************************************************/
 148
 149 #define NETXBIG_V2_GPIO_SWITCH_POWER_ON         13
 150 #define NETXBIG_V2_GPIO_SWITCH_POWER_OFF        15
 151 #define NETXBIG_V2_GPIO_FUNC_BUTTON             34
 152
 153 #define NETXBIG_V2_SWITCH_POWER_ON              0x1
 154 #define NETXBIG_V2_SWITCH_POWER_OFF             0x2
 155
 156 static struct gpio_keys_button netxbig_v2_buttons[] = {
 157         [0] = {
 158                 .type           = EV_SW,
 159                 .code           = NETXBIG_V2_SWITCH_POWER_ON,
 160                 .gpio           = NETXBIG_V2_GPIO_SWITCH_POWER_ON,
 161                 .desc           = "Back power switch (on|auto)",
 162                 .active_low     = 1,
 163         },
 164         [1] = {
 165                 .type           = EV_SW,
 166                 .code           = NETXBIG_V2_SWITCH_POWER_OFF,
 167                 .gpio           = NETXBIG_V2_GPIO_SWITCH_POWER_OFF,
 168                 .desc           = "Back power switch (auto|off)",
 169                 .active_low     = 1,
 170         },
 171         [2] = {
 172                 .code           = KEY_OPTION,
 173                 .gpio           = NETXBIG_V2_GPIO_FUNC_BUTTON,
 174                 .desc           = "Function button",
 175                 .active_low     = 1,
 176         },
 177 };
 178
 179 static struct gpio_keys_platform_data netxbig_v2_button_data = {
 180         .buttons        = netxbig_v2_buttons,
 181         .nbuttons       = ARRAY_SIZE(netxbig_v2_buttons),
 182 };
 183
 184 static struct platform_device netxbig_v2_gpio_buttons = {
 185         .name           = "gpio-keys",
 186         .id             = -1,
 187         .dev            = {
 188                 .platform_data  = &netxbig_v2_button_data,
 189         },
 190 };
 191
 192 /*****************************************************************************
 193  * GPIO LEDs
 194  ****************************************************************************/
 195
 196 /*
 197  * The LEDs are controlled by a CPLD and can be configured through a GPIO
 198  * extension bus:
 199  *
 200  * - address register : bit [0-2] -> GPIO [47-49]
 201  * - data register    : bit [0-2] -> GPIO [44-46]
 202  * - enable register  : GPIO 29
 203  *
 204  * Address register selection:
 205  *
 206  * addr | register
 207  * ----------------------------
 208  *   0  | front LED
 209  *   1  | front LED brightness
 210  *   2  | HDD LED brightness
 211  *   3  | HDD1 LED
 212  *   4  | HDD2 LED
 213  *   5  | HDD3 LED
 214  *   6  | HDD4 LED
 215  *   7  | HDD5 LED
 216  *
 217  * Data register configuration:
 218  *
 219  * data | LED brightness
 220  * -------------------------------------------------
 221  *   0  | min (off)
 222  *   -  | -
 223  *   7  | max
 224  *
 225  * data | front LED mode
 226  * -------------------------------------------------
 227  *   0  | fix off
 228  *   1  | fix blue on
 229  *   2  | fix red on
 230  *   3  | blink blue on=1 sec and blue off=1 sec
 231  *   4  | blink red on=1 sec and red off=1 sec
 232  *   5  | blink blue on=2.5 sec and red on=0.5 sec
 233  *   6  | blink blue on=1 sec and red on=1 sec
 234  *   7  | blink blue on=0.5 sec and blue off=2.5 sec
 235  *
 236  * data | HDD LED mode
 237  * -------------------------------------------------
 238  *   0  | fix blue on
 239  *   1  | SATA activity blink
 240  *   2  | fix red on
 241  *   3  | blink blue on=1 sec and blue off=1 sec
 242  *   4  | blink red on=1 sec and red off=1 sec
 243  *   5  | blink blue on=2.5 sec and red on=0.5 sec
 244  *   6  | blink blue on=1 sec and red on=1 sec
 245  *   7  | blink blue on=0.5 sec and blue off=2.5 sec
 246  */
 247
 248 /*****************************************************************************
 249  * Timer
 250  ****************************************************************************/
 251
 252 static void netxbig_v2_timer_init(void)
 253 {
 254         kirkwood_tclk = 166666667;
 255         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 256 }
 257
 258 struct sys_timer netxbig_v2_timer = {
 259         .init = netxbig_v2_timer_init,
 260 };
 261
 262 /*****************************************************************************
 263  * General Setup
 264  ****************************************************************************/
 265
 266 static unsigned int net2big_v2_mpp_config[] __initdata = {
 267         MPP0_SPI_SCn,
 268         MPP1_SPI_MOSI,
 269         MPP2_SPI_SCK,
 270         MPP3_SPI_MISO,
 271         MPP6_SYSRST_OUTn,
 272         MPP7_GPO,               /* Request power-off */
 273         MPP8_TW0_SDA,
 274         MPP9_TW0_SCK,
 275         MPP10_UART0_TXD,
 276         MPP11_UART0_RXD,
 277         MPP13_GPIO,             /* Rear power switch (on|auto) */
 278         MPP14_GPIO,             /* USB fuse alarm */
 279         MPP15_GPIO,             /* Rear power switch (auto|off) */
 280         MPP16_GPIO,             /* SATA HDD1 power */
 281         MPP17_GPIO,             /* SATA HDD2 power */
 282         MPP20_SATA1_ACTn,
 283         MPP21_SATA0_ACTn,
 284         MPP24_GPIO,             /* USB mode select */
 285         MPP26_GPIO,             /* USB device vbus */
 286         MPP28_GPIO,             /* USB enable host vbus */
 287         MPP29_GPIO,             /* CPLD extension ALE */
 288         MPP34_GPIO,             /* Rear Push button */
 289         MPP35_GPIO,             /* Inhibit switch power-off */
 290         MPP36_GPIO,             /* SATA HDD1 presence */
 291         MPP37_GPIO,             /* SATA HDD2 presence */
 292         MPP40_GPIO,             /* eSATA presence */
 293         MPP44_GPIO,             /* CPLD extension (data 0) */
 294         MPP45_GPIO,             /* CPLD extension (data 1) */
 295         MPP46_GPIO,             /* CPLD extension (data 2) */
 296         MPP47_GPIO,             /* CPLD extension (addr 0) */
 297         MPP48_GPIO,             /* CPLD extension (addr 1) */
 298         MPP49_GPIO,             /* CPLD extension (addr 2) */
 299         0
 300 };
 301
 302 static unsigned int net5big_v2_mpp_config[] __initdata = {
 303         MPP0_SPI_SCn,
 304         MPP1_SPI_MOSI,
 305         MPP2_SPI_SCK,
 306         MPP3_SPI_MISO,
 307         MPP6_SYSRST_OUTn,
 308         MPP7_GPO,               /* Request power-off */
 309         MPP8_TW0_SDA,
 310         MPP9_TW0_SCK,
 311         MPP10_UART0_TXD,
 312         MPP11_UART0_RXD,
 313         MPP13_GPIO,             /* Rear power switch (on|auto) */
 314         MPP14_GPIO,             /* USB fuse alarm */
 315         MPP15_GPIO,             /* Rear power switch (auto|off) */
 316         MPP16_GPIO,             /* SATA HDD1 power */
 317         MPP17_GPIO,             /* SATA HDD2 power */
 318         MPP20_GE1_TXD0,
 319         MPP21_GE1_TXD1,
 320         MPP22_GE1_TXD2,
 321         MPP23_GE1_TXD3,
 322         MPP24_GE1_RXD0,
 323         MPP25_GE1_RXD1,
 324         MPP26_GE1_RXD2,
 325         MPP27_GE1_RXD3,
 326         MPP28_GPIO,             /* USB enable host vbus */
 327         MPP29_GPIO,             /* CPLD extension ALE */
 328         MPP30_GE1_RXCTL,
 329         MPP31_GE1_RXCLK,
 330         MPP32_GE1_TCLKOUT,
 331         MPP33_GE1_TXCTL,
 332         MPP34_GPIO,             /* Rear Push button */
 333         MPP35_GPIO,             /* Inhibit switch power-off */
 334         MPP36_GPIO,             /* SATA HDD1 presence */
 335         MPP37_GPIO,             /* SATA HDD2 presence */
 336         MPP38_GPIO,             /* SATA HDD3 presence */
 337         MPP39_GPIO,             /* SATA HDD4 presence */
 338         MPP40_GPIO,             /* SATA HDD5 presence */
 339         MPP41_GPIO,             /* SATA HDD3 power */
 340         MPP42_GPIO,             /* SATA HDD4 power */
 341         MPP43_GPIO,             /* SATA HDD5 power */
 342         MPP44_GPIO,             /* CPLD extension (data 0) */
 343         MPP45_GPIO,             /* CPLD extension (data 1) */
 344         MPP46_GPIO,             /* CPLD extension (data 2) */
 345         MPP47_GPIO,             /* CPLD extension (addr 0) */
 346         MPP48_GPIO,             /* CPLD extension (addr 1) */
 347         MPP49_GPIO,             /* CPLD extension (addr 2) */
 348         0
 349 };
 350
 351 #define NETXBIG_V2_GPIO_POWER_OFF               7
 352
 353 static void netxbig_v2_power_off(void)
 354 {
 355         gpio_set_value(NETXBIG_V2_GPIO_POWER_OFF, 1);
 356 }
 357
 358 static void __init netxbig_v2_init(void)
 359 {
 360         /*
 361          * Basic setup. Needs to be called early.
 362          */
 363         kirkwood_init();
 364         if (machine_is_net2big_v2())
 365                 kirkwood_mpp_conf(net2big_v2_mpp_config);
 366         else
 367                 kirkwood_mpp_conf(net5big_v2_mpp_config);
 368
 369         netxbig_v2_sata_power_init();
 370
 371         kirkwood_ehci_init();
 372         kirkwood_ge00_init(&netxbig_v2_ge00_data);
 373         if (machine_is_net5big_v2())
 374                 kirkwood_ge01_init(&netxbig_v2_ge01_data);
 375         kirkwood_sata_init(&netxbig_v2_sata_data);
 376         kirkwood_uart0_init();
 377         spi_register_board_info(netxbig_v2_spi_slave_info,
 378                                 ARRAY_SIZE(netxbig_v2_spi_slave_info));
 379         kirkwood_spi_init();
 380         kirkwood_i2c_init();
 381         i2c_register_board_info(0, netxbig_v2_i2c_info,
 382                                 ARRAY_SIZE(netxbig_v2_i2c_info));
 383
 384         platform_device_register(&netxbig_v2_gpio_buttons);
 385
 386         if (gpio_request(NETXBIG_V2_GPIO_POWER_OFF, "power-off") == 0 &&
 387             gpio_direction_output(NETXBIG_V2_GPIO_POWER_OFF, 0) == 0)
 388                 pm_power_off = netxbig_v2_power_off;
 389         else
 390                 pr_err("netxbig_v2: failed to configure power-off GPIO\n");
 391 }
 392
 393 #ifdef CONFIG_MACH_NET2BIG_V2
 394 MACHINE_START(NET2BIG_V2, "LaCie 2Big Network v2")
 395         .phys_io        = KIRKWOOD_REGS_PHYS_BASE,
 396         .io_pg_offst    = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
 397         .boot_params    = 0x00000100,
 398         .init_machine   = netxbig_v2_init,
 399         .map_io         = kirkwood_map_io,
 400         .init_irq       = kirkwood_init_irq,
 401         .timer          = &netxbig_v2_timer,
 402 MACHINE_END
 403 #endif
 404
 405 #ifdef CONFIG_MACH_NET5BIG_V2
 406 MACHINE_START(NET5BIG_V2, "LaCie 5Big Network v2")
 407         .phys_io        = KIRKWOOD_REGS_PHYS_BASE,
 408         .io_pg_offst    = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
 409         .boot_params    = 0x00000100,
 410         .init_machine   = netxbig_v2_init,
 411         .map_io         = kirkwood_map_io,
 412         .init_irq       = kirkwood_init_irq,
 413         .timer          = &netxbig_v2_timer,
 414 MACHINE_END
 415 #endif