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         int irq;
 145
 146         /*
 147          * Check for devices with hard-wired IRQs.
 148          */
 149         irq = orion5x_pci_map_irq(dev, slot, pin);
 150         if (irq != -1)
 151                 return irq;
 152
 153         /*
 154          * PCI IRQs are connected via GPIOs.
 155          */
 156         switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
 157         case 0:
 158                 return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
 159         case 1:
 160                 return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
 161         default:
 162                 return -1;
 163         }
 164 }
 165
 166 static struct hw_pci qnap_ts209_pci __initdata = {
 167         .nr_controllers = 2,
 168         .preinit        = qnap_ts209_pci_preinit,
 169         .swizzle        = pci_std_swizzle,
 170         .setup          = orion5x_pci_sys_setup,
 171         .scan           = orion5x_pci_sys_scan_bus,
 172         .map_irq        = qnap_ts209_pci_map_irq,
 173 };
 174
 175 static int __init qnap_ts209_pci_init(void)
 176 {
 177         if (machine_is_ts_x09())
 178                 pci_common_init(&qnap_ts209_pci);
 179
 180         return 0;
 181 }
 182
 183 subsys_initcall(qnap_ts209_pci_init);
 184
 185 /*****************************************************************************
 186  * Ethernet
 187  ****************************************************************************/
 188
 189 static struct mv643xx_eth_platform_data qnap_ts209_eth_data = {
 190         .phy_addr       = 8,
 191         .force_phy_addr = 1,
 192 };
 193
 194 static int __init parse_hex_nibble(char n)
 195 {
 196         if (n >= '0' && n <= '9')
 197                 return n - '0';
 198
 199         if (n >= 'A' && n <= 'F')
 200                 return n - 'A' + 10;
 201
 202         if (n >= 'a' && n <= 'f')
 203                 return n - 'a' + 10;
 204
 205         return -1;
 206 }
 207
 208 static int __init parse_hex_byte(const char *b)
 209 {
 210         int hi;
 211         int lo;
 212
 213         hi = parse_hex_nibble(b[0]);
 214         lo = parse_hex_nibble(b[1]);
 215
 216         if (hi < 0 || lo < 0)
 217                 return -1;
 218
 219         return (hi << 4) | lo;
 220 }
 221
 222 static int __init check_mac_addr(const char *addr_str)
 223 {
 224         u_int8_t addr[6];
 225         int i;
 226
 227         for (i = 0; i < 6; i++) {
 228                 int byte;
 229
 230                 /*
 231                  * Enforce "xx:xx:xx:xx:xx:xx\n" format.
 232                  */
 233                 if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
 234                         return -1;
 235
 236                 byte = parse_hex_byte(addr_str + (i * 3));
 237                 if (byte < 0)
 238                         return -1;
 239                 addr[i] = byte;
 240         }
 241
 242         printk(KERN_INFO "ts209: found ethernet mac address ");
 243         for (i = 0; i < 6; i++)
 244                 printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
 245
 246         memcpy(qnap_ts209_eth_data.mac_addr, addr, 6);
 247
 248         return 0;
 249 }
 250
 251 /*
 252  * The 'NAS Config' flash partition has an ext2 filesystem which
 253  * contains a file that has the ethernet MAC address in plain text
 254  * (format "xx:xx:xx:xx:xx:xx\n".)
 255  */
 256 static void __init ts209_find_mac_addr(void)
 257 {
 258         unsigned long addr;
 259
 260         for (addr = 0x00700000; addr < 0x00760000; addr += 1024) {
 261                 char *nor_page;
 262                 int ret = 0;
 263
 264                 nor_page = ioremap(QNAP_TS209_NOR_BOOT_BASE + addr, 1024);
 265                 if (nor_page != NULL) {
 266                         ret = check_mac_addr(nor_page);
 267                         iounmap(nor_page);
 268                 }
 269
 270                 if (ret == 0)
 271                         break;
 272         }
 273 }
 274
 275 /*****************************************************************************
 276  * RTC S35390A on I2C bus
 277  ****************************************************************************/
 278
 279 #define TS209_RTC_GPIO  3
 280
 281 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
 282         I2C_BOARD_INFO("s35390a", 0x30),
 283        .irq         = 0,
 284 };
 285
 286 /****************************************************************************
 287  * GPIO Attached Keys
 288  *     Power button is attached to the PIC microcontroller
 289  ****************************************************************************/
 290
 291 #define QNAP_TS209_GPIO_KEY_MEDIA       1
 292 #define QNAP_TS209_GPIO_KEY_RESET       2
 293
 294 static struct gpio_keys_button qnap_ts209_buttons[] = {
 295         {
 296                 .code           = KEY_RESTART,
 297                 .gpio           = QNAP_TS209_GPIO_KEY_MEDIA,
 298                 .desc           = "USB Copy Button",
 299                 .active_low     = 1,
 300         },
 301         {
 302                 .code           = KEY_POWER,
 303                 .gpio           = QNAP_TS209_GPIO_KEY_RESET,
 304                 .desc           = "Reset Button",
 305                 .active_low     = 1,
 306         }
 307 };
 308
 309 static struct gpio_keys_platform_data qnap_ts209_button_data = {
 310         .buttons        = qnap_ts209_buttons,
 311         .nbuttons       = ARRAY_SIZE(qnap_ts209_buttons),
 312 };
 313
 314 static struct platform_device qnap_ts209_button_device = {
 315         .name           = "gpio-keys",
 316         .id             = -1,
 317         .num_resources  = 0,
 318         .dev            = { .platform_data  = &qnap_ts209_button_data, },
 319 };
 320
 321 /*****************************************************************************
 322  * SATA
 323  ****************************************************************************/
 324 static struct mv_sata_platform_data qnap_ts209_sata_data = {
 325         .n_ports        = 2,
 326 };
 327
 328 /*****************************************************************************
 329
 330  * General Setup
 331  ****************************************************************************/
 332
 333 static struct platform_device *qnap_ts209_devices[] __initdata = {
 334         &qnap_ts209_nor_flash,
 335         &qnap_ts209_button_device,
 336 };
 337
 338 /*
 339  * QNAP TS-[12]09 specific power off method via UART1-attached PIC
 340  */
 341
 342 #define UART1_REG(x)  (UART1_VIRT_BASE + ((UART_##x) << 2))
 343
 344 static void qnap_ts209_power_off(void)
 345 {
 346         /* 19200 baud divisor */
 347         const unsigned divisor = ((ORION5X_TCLK + (8 * 19200)) / (16 * 19200));
 348
 349         pr_info("%s: triggering power-off...\n", __func__);
 350
 351         /* hijack uart1 and reset into sane state (19200,8n1) */
 352         orion5x_write(UART1_REG(LCR), 0x83);
 353         orion5x_write(UART1_REG(DLL), divisor & 0xff);
 354         orion5x_write(UART1_REG(DLM), (divisor >> 8) & 0xff);
 355         orion5x_write(UART1_REG(LCR), 0x03);
 356         orion5x_write(UART1_REG(IER), 0x00);
 357         orion5x_write(UART1_REG(FCR), 0x00);
 358         orion5x_write(UART1_REG(MCR), 0x00);
 359
 360         /* send the power-off command 'A' to PIC */
 361         orion5x_write(UART1_REG(TX), 'A');
 362 }
 363
 364 static void __init qnap_ts209_init(void)
 365 {
 366         /*
 367          * Setup basic Orion functions. Need to be called early.
 368          */
 369         orion5x_init();
 370
 371         /*
 372          * Setup flash mapping
 373          */
 374         orion5x_setup_dev_boot_win(QNAP_TS209_NOR_BOOT_BASE,
 375                             QNAP_TS209_NOR_BOOT_SIZE);
 376
 377         /*
 378          * Open a special address decode windows for the PCIe WA.
 379          */
 380         orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE,
 381                                 ORION5X_PCIE_WA_SIZE);
 382
 383         /*
 384          * Setup Multiplexing Pins --
 385          * MPP[0] Reserved
 386          * MPP[1] USB copy button (0 active)
 387          * MPP[2] Load defaults button (0 active)
 388          * MPP[3] GPIO RTC
 389          * MPP[4-5] Reserved
 390          * MPP[6] PCI Int A
 391          * MPP[7] PCI Int B
 392          * MPP[8-11] Reserved
 393          * MPP[12] SATA 0 presence
 394          * MPP[13] SATA 1 presence
 395          * MPP[14] SATA 0 active
 396          * MPP[15] SATA 1 active
 397          * MPP[16] UART1 RXD
 398          * MPP[17] UART1 TXD
 399          * MPP[18] SW_RST (0 active)
 400          * MPP[19] Reserved
 401          * MPP[20] PCI clock 0
 402          * MPP[21] PCI clock 1
 403          * MPP[22] USB 0 over current
 404          * MPP[23-25] Reserved
 405          */
 406         orion5x_write(MPP_0_7_CTRL, 0x3);
 407         orion5x_write(MPP_8_15_CTRL, 0x55550000);
 408         orion5x_write(MPP_16_19_CTRL, 0x5500);
 409         orion5x_gpio_set_valid_pins(0x3cc0fff);
 410
 411         /* register ts209 specific power-off method */
 412         pm_power_off = qnap_ts209_power_off;
 413
 414         platform_add_devices(qnap_ts209_devices,
 415                                 ARRAY_SIZE(qnap_ts209_devices));
 416
 417         /* Get RTC IRQ and register the chip */
 418         if (gpio_request(TS209_RTC_GPIO, "rtc") == 0) {
 419                 if (gpio_direction_input(TS209_RTC_GPIO) == 0)
 420                         qnap_ts209_i2c_rtc.irq = gpio_to_irq(TS209_RTC_GPIO);
 421                 else
 422                         gpio_free(TS209_RTC_GPIO);
 423         }
 424         if (qnap_ts209_i2c_rtc.irq == 0)
 425                 pr_warning("qnap_ts209_init: failed to get RTC IRQ\n");
 426         i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
 427
 428         ts209_find_mac_addr();
 429         orion5x_eth_init(&qnap_ts209_eth_data);
 430
 431         orion5x_sata_init(&qnap_ts209_sata_data);
 432 }
 433
 434 MACHINE_START(TS209, "QNAP TS-109/TS-209")
 435         /* Maintainer:  Byron Bradley <byron.bbradley@gmail.com> */
 436         .phys_io        = ORION5X_REGS_PHYS_BASE,
 437         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 438         .boot_params    = 0x00000100,
 439         .init_machine   = qnap_ts209_init,
 440         .map_io         = orion5x_map_io,
 441         .init_irq       = orion5x_init_irq,
 442         .timer          = &orion5x_timer,
 443         .fixup          = tag_fixup_mem32,
 444 MACHINE_END