arch/arm/mach-orion5x/ts209-setup.c

   1 /*
   2  * QNAP TS-109/TS-209 Board Setup
   3  *
   4  * Maintainer: Byron Bradley <byron.bbradley@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/pci.h>
  16 #include <linux/irq.h>
  17 #include <linux/mtd/physmap.h>
  18 #include <linux/mtd/nand.h>
  19 #include <linux/mv643xx_eth.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/input.h>
  22 #include <linux/i2c.h>
  23 #include <linux/serial_reg.h>
  24 #include <linux/ata_platform.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/gpio.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/pci.h>
  29 #include <asm/arch/orion5x.h>
  30 #include "common.h"
  31
  32 #define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
  33 #define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
  34
  35 /****************************************************************************
  36  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
  37  *     partitions on the device because we want to keep compatability with
  38  *     existing QNAP firmware.
  39  *
  40  * Layout as used by QNAP:
  41  *  [2] 0x00000000-0x00200000 : "Kernel"
  42  *  [3] 0x00200000-0x00600000 : "RootFS1"
  43  *  [4] 0x00600000-0x00700000 : "RootFS2"
  44  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
  45  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
  46  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
  47  ***************************************************************************/
  48 static struct mtd_partition qnap_ts209_partitions[] = {
  49         {
  50                 .name       = "U-Boot",
  51                 .size       = 0x00080000,
  52                 .offset     = 0x00780000,
  53                 .mask_flags = MTD_WRITEABLE,
  54         }, {
  55                 .name   = "Kernel",
  56                 .size   = 0x00200000,
  57                 .offset = 0,
  58         }, {
  59                 .name   = "RootFS1",
  60                 .size   = 0x00400000,
  61                 .offset = 0x00200000,
  62         }, {
  63                 .name   = "RootFS2",
  64                 .size   = 0x00100000,
  65                 .offset = 0x00600000,
  66         }, {
  67                 .name   = "U-Boot Config",
  68                 .size   = 0x00020000,
  69                 .offset = 0x00760000,
  70         }, {
  71                 .name       = "NAS Config",
  72                 .size       = 0x00060000,
  73                 .offset     = 0x00700000,
  74                 .mask_flags = MTD_WRITEABLE,
  75         }
  76 };
  77
  78 static struct physmap_flash_data qnap_ts209_nor_flash_data = {
  79         .width    = 1,
  80         .parts    = qnap_ts209_partitions,
  81         .nr_parts = ARRAY_SIZE(qnap_ts209_partitions)
  82 };
  83
  84 static struct resource qnap_ts209_nor_flash_resource = {
  85         .flags = IORESOURCE_MEM,
  86         .start = QNAP_TS209_NOR_BOOT_BASE,
  87         .end   = QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
  88 };
  89
  90 static struct platform_device qnap_ts209_nor_flash = {
  91         .name          = "physmap-flash",
  92         .id            = 0,
  93         .dev           = { .platform_data = &qnap_ts209_nor_flash_data, },
  94         .resource      = &qnap_ts209_nor_flash_resource,
  95         .num_resources = 1,
  96 };
  97
  98 /*****************************************************************************
  99  * PCI
 100  ****************************************************************************/
 101
 102 #define QNAP_TS209_PCI_SLOT0_OFFS       7
 103 #define QNAP_TS209_PCI_SLOT0_IRQ_PIN    6
 104 #define QNAP_TS209_PCI_SLOT1_IRQ_PIN    7
 105
 106 void __init qnap_ts209_pci_preinit(void)
 107 {
 108         int pin;
 109
 110         /*
 111          * Configure PCI GPIO IRQ pins
 112          */
 113         pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
 114         if (gpio_request(pin, "PCI Int1") == 0) {
 115                 if (gpio_direction_input(pin) == 0) {
 116                         set_irq_type(gpio_to_irq(pin), IRQT_LOW);
 117                 } else {
 118                         printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
 119                                         "set_irq_type pin %d\n", pin);
 120                         gpio_free(pin);
 121                 }
 122         } else {
 123                 printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
 124                                 "%d\n", pin);
 125         }
 126
 127         pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
 128         if (gpio_request(pin, "PCI Int2") == 0) {
 129                 if (gpio_direction_input(pin) == 0) {
 130                         set_irq_type(gpio_to_irq(pin), IRQT_LOW);
 131                 } else {
 132                         printk(KERN_ERR "qnap_ts209_pci_preinit failed "
 133                                         "to set_irq_type pin %d\n", pin);
 134                         gpio_free(pin);
 135                 }
 136         } else {
 137                 printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
 138                                 "%d\n", pin);
 139         }
 140 }
 141
 142 static int __init qnap_ts209_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 143 {
 144         /*
 145          * PCIE IRQ is connected internally (not GPIO)
 146          */
 147         if (dev->bus->number == orion5x_pcie_local_bus_nr())
 148                 return IRQ_ORION5X_PCIE0_INT;
 149
 150         /*
 151          * PCI IRQs are connected via GPIOs
 152          */
 153         switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
 154         case 0:
 155                 return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
 156         case 1:
 157                 return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
 158         default:
 159                 return -1;
 160         }
 161 }
 162
 163 static struct hw_pci qnap_ts209_pci __initdata = {
 164         .nr_controllers = 2,
 165         .preinit        = qnap_ts209_pci_preinit,
 166         .swizzle        = pci_std_swizzle,
 167         .setup          = orion5x_pci_sys_setup,
 168         .scan           = orion5x_pci_sys_scan_bus,
 169         .map_irq        = qnap_ts209_pci_map_irq,
 170 };
 171
 172 static int __init qnap_ts209_pci_init(void)
 173 {
 174         if (machine_is_ts_x09())
 175                 pci_common_init(&qnap_ts209_pci);
 176
 177         return 0;
 178 }
 179
 180 subsys_initcall(qnap_ts209_pci_init);
 181
 182 /*****************************************************************************
 183  * Ethernet
 184  ****************************************************************************/
 185
 186 static struct mv643xx_eth_platform_data qnap_ts209_eth_data = {
 187         .phy_addr       = 8,
 188         .force_phy_addr = 1,
 189 };
 190
 191 static int __init parse_hex_nibble(char n)
 192 {
 193         if (n >= '0' && n <= '9')
 194                 return n - '0';
 195
 196         if (n >= 'A' && n <= 'F')
 197                 return n - 'A' + 10;
 198
 199         if (n >= 'a' && n <= 'f')
 200                 return n - 'a' + 10;
 201
 202         return -1;
 203 }
 204
 205 static int __init parse_hex_byte(const char *b)
 206 {
 207         int hi;
 208         int lo;
 209
 210         hi = parse_hex_nibble(b[0]);
 211         lo = parse_hex_nibble(b[1]);
 212
 213         if (hi < 0 || lo < 0)
 214                 return -1;
 215
 216         return (hi << 4) | lo;
 217 }
 218
 219 static int __init check_mac_addr(const char *addr_str)
 220 {
 221         u_int8_t addr[6];
 222         int i;
 223
 224         for (i = 0; i < 6; i++) {
 225                 int byte;
 226
 227                 /*
 228                  * Enforce "xx:xx:xx:xx:xx:xx\n" format.
 229                  */
 230                 if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
 231                         return -1;
 232
 233                 byte = parse_hex_byte(addr_str + (i * 3));
 234                 if (byte < 0)
 235                         return -1;
 236                 addr[i] = byte;
 237         }
 238
 239         printk(KERN_INFO "ts209: found ethernet mac address ");
 240         for (i = 0; i < 6; i++)
 241                 printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
 242
 243         memcpy(qnap_ts209_eth_data.mac_addr, addr, 6);
 244
 245         return 0;
 246 }
 247
 248 /*
 249  * The 'NAS Config' flash partition has an ext2 filesystem which
 250  * contains a file that has the ethernet MAC address in plain text
 251  * (format "xx:xx:xx:xx:xx:xx\n".)
 252  */
 253 static void __init ts209_find_mac_addr(void)
 254 {
 255         unsigned long addr;
 256
 257         for (addr = 0x00700000; addr < 0x00760000; addr += 1024) {
 258                 char *nor_page;
 259                 int ret = 0;
 260
 261                 nor_page = ioremap(QNAP_TS209_NOR_BOOT_BASE + addr, 1024);
 262                 if (nor_page != NULL) {
 263                         ret = check_mac_addr(nor_page);
 264                         iounmap(nor_page);
 265                 }
 266
 267                 if (ret == 0)
 268                         break;
 269         }
 270 }
 271
 272 /*****************************************************************************
 273  * RTC S35390A on I2C bus
 274  ****************************************************************************/
 275
 276 #define TS209_RTC_GPIO  3
 277
 278 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
 279        .driver_name = "rtc-s35390a",
 280        .addr        = 0x30,
 281        .irq         = 0,
 282 };
 283
 284 /****************************************************************************
 285  * GPIO Attached Keys
 286  *     Power button is attached to the PIC microcontroller
 287  ****************************************************************************/
 288
 289 #define QNAP_TS209_GPIO_KEY_MEDIA       1
 290 #define QNAP_TS209_GPIO_KEY_RESET       2
 291
 292 static struct gpio_keys_button qnap_ts209_buttons[] = {
 293         {
 294                 .code           = KEY_RESTART,
 295                 .gpio           = QNAP_TS209_GPIO_KEY_MEDIA,
 296                 .desc           = "USB Copy Button",
 297                 .active_low     = 1,
 298         },
 299         {
 300                 .code           = KEY_POWER,
 301                 .gpio           = QNAP_TS209_GPIO_KEY_RESET,
 302                 .desc           = "Reset Button",
 303                 .active_low     = 1,
 304         }
 305 };
 306
 307 static struct gpio_keys_platform_data qnap_ts209_button_data = {
 308         .buttons        = qnap_ts209_buttons,
 309         .nbuttons       = ARRAY_SIZE(qnap_ts209_buttons),
 310 };
 311
 312 static struct platform_device qnap_ts209_button_device = {
 313         .name           = "gpio-keys",
 314         .id             = -1,
 315         .num_resources  = 0,
 316         .dev            = { .platform_data  = &qnap_ts209_button_data, },
 317 };
 318
 319 /*****************************************************************************
 320  * SATA
 321  ****************************************************************************/
 322 static struct mv_sata_platform_data qnap_ts209_sata_data = {
 323         .n_ports        = 2,
 324 };
 325
 326 /*****************************************************************************
 327
 328  * General Setup
 329  ****************************************************************************/
 330
 331 static struct platform_device *qnap_ts209_devices[] __initdata = {
 332         &qnap_ts209_nor_flash,
 333         &qnap_ts209_button_device,
 334 };
 335
 336 /*
 337  * QNAP TS-[12]09 specific power off method via UART1-attached PIC
 338  */
 339
 340 #define UART1_REG(x)  (UART1_VIRT_BASE + ((UART_##x) << 2))
 341
 342 static void qnap_ts209_power_off(void)
 343 {
 344         /* 19200 baud divisor */
 345         const unsigned divisor = ((ORION5X_TCLK + (8 * 19200)) / (16 * 19200));
 346
 347         pr_info("%s: triggering power-off...\n", __func__);
 348
 349         /* hijack uart1 and reset into sane state (19200,8n1) */
 350         orion5x_write(UART1_REG(LCR), 0x83);
 351         orion5x_write(UART1_REG(DLL), divisor & 0xff);
 352         orion5x_write(UART1_REG(DLM), (divisor >> 8) & 0xff);
 353         orion5x_write(UART1_REG(LCR), 0x03);
 354         orion5x_write(UART1_REG(IER), 0x00);
 355         orion5x_write(UART1_REG(FCR), 0x00);
 356         orion5x_write(UART1_REG(MCR), 0x00);
 357
 358         /* send the power-off command 'A' to PIC */
 359         orion5x_write(UART1_REG(TX), 'A');
 360 }
 361
 362 static void __init qnap_ts209_init(void)
 363 {
 364         /*
 365          * Setup basic Orion functions. Need to be called early.
 366          */
 367         orion5x_init();
 368
 369         /*
 370          * Setup flash mapping
 371          */
 372         orion5x_setup_dev_boot_win(QNAP_TS209_NOR_BOOT_BASE,
 373                             QNAP_TS209_NOR_BOOT_SIZE);
 374
 375         /*
 376          * Open a special address decode windows for the PCIE WA.
 377          */
 378         orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE,
 379                                 ORION5X_PCIE_WA_SIZE);
 380
 381         /*
 382          * Setup Multiplexing Pins --
 383          * MPP[0] Reserved
 384          * MPP[1] USB copy button (0 active)
 385          * MPP[2] Load defaults button (0 active)
 386          * MPP[3] GPIO RTC
 387          * MPP[4-5] Reserved
 388          * MPP[6] PCI Int A
 389          * MPP[7] PCI Int B
 390          * MPP[8-11] Reserved
 391          * MPP[12] SATA 0 presence
 392          * MPP[13] SATA 1 presence
 393          * MPP[14] SATA 0 active
 394          * MPP[15] SATA 1 active
 395          * MPP[16] UART1 RXD
 396          * MPP[17] UART1 TXD
 397          * MPP[18] SW_RST (0 active)
 398          * MPP[19] Reserved
 399          * MPP[20] PCI clock 0
 400          * MPP[21] PCI clock 1
 401          * MPP[22] USB 0 over current
 402          * MPP[23-25] Reserved
 403          */
 404         orion5x_write(MPP_0_7_CTRL, 0x3);
 405         orion5x_write(MPP_8_15_CTRL, 0x55550000);
 406         orion5x_write(MPP_16_19_CTRL, 0x5500);
 407         orion5x_gpio_set_valid_pins(0x3cc0fff);
 408
 409         /* register ts209 specific power-off method */
 410         pm_power_off = qnap_ts209_power_off;
 411
 412         platform_add_devices(qnap_ts209_devices,
 413                                 ARRAY_SIZE(qnap_ts209_devices));
 414
 415         /* Get RTC IRQ and register the chip */
 416         if (gpio_request(TS209_RTC_GPIO, "rtc") == 0) {
 417                 if (gpio_direction_input(TS209_RTC_GPIO) == 0)
 418                         qnap_ts209_i2c_rtc.irq = gpio_to_irq(TS209_RTC_GPIO);
 419                 else
 420                         gpio_free(TS209_RTC_GPIO);
 421         }
 422         if (qnap_ts209_i2c_rtc.irq == 0)
 423                 pr_warning("qnap_ts209_init: failed to get RTC IRQ\n");
 424         i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
 425
 426         ts209_find_mac_addr();
 427         orion5x_eth_init(&qnap_ts209_eth_data);
 428
 429         orion5x_sata_init(&qnap_ts209_sata_data);
 430 }
 431
 432 MACHINE_START(TS209, "QNAP TS-109/TS-209")
 433         /* Maintainer:  Byron Bradley <byron.bbradley@gmail.com> */
 434         .phys_io        = ORION5X_REGS_PHYS_BASE,
 435         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 436         .boot_params    = 0x00000100,
 437         .init_machine   = qnap_ts209_init,
 438         .map_io         = orion5x_map_io,
 439         .init_irq       = orion5x_init_irq,
 440         .timer          = &orion5x_timer,
 441         .fixup          = tag_fixup_mem32,
 442 MACHINE_END