arch/arm/mach-orion/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/orion.h>
  30 #include <asm/arch/platform.h>
  31 #include "common.h"
  32
  33 #define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
  34 #define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
  35
  36 /****************************************************************************
  37  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
  38  *     partitions on the device because we want to keep compatability with
  39  *     existing QNAP firmware.
  40  *
  41  * Layout as used by QNAP:
  42  *  [2] 0x00000000-0x00200000 : "Kernel"
  43  *  [3] 0x00200000-0x00600000 : "RootFS1"
  44  *  [4] 0x00600000-0x00700000 : "RootFS2"
  45  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
  46  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
  47  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
  48  ***************************************************************************/
  49 static struct mtd_partition qnap_ts209_partitions[] = {
  50         {
  51                 .name       = "U-Boot",
  52                 .size       = 0x00080000,
  53                 .offset     = 0x00780000,
  54                 .mask_flags = MTD_WRITEABLE,
  55         }, {
  56                 .name   = "Kernel",
  57                 .size   = 0x00200000,
  58                 .offset = 0,
  59         }, {
  60                 .name   = "RootFS1",
  61                 .size   = 0x00400000,
  62                 .offset = 0x00200000,
  63         }, {
  64                 .name   = "RootFS2",
  65                 .size   = 0x00100000,
  66                 .offset = 0x00600000,
  67         }, {
  68                 .name   = "U-Boot Config",
  69                 .size   = 0x00020000,
  70                 .offset = 0x00760000,
  71         }, {
  72                 .name       = "NAS Config",
  73                 .size       = 0x00060000,
  74                 .offset     = 0x00700000,
  75                 .mask_flags = MTD_WRITEABLE,
  76         }
  77 };
  78
  79 static struct physmap_flash_data qnap_ts209_nor_flash_data = {
  80         .width    = 1,
  81         .parts    = qnap_ts209_partitions,
  82         .nr_parts = ARRAY_SIZE(qnap_ts209_partitions)
  83 };
  84
  85 static struct resource qnap_ts209_nor_flash_resource = {
  86         .flags = IORESOURCE_MEM,
  87         .start = QNAP_TS209_NOR_BOOT_BASE,
  88         .end   = QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
  89 };
  90
  91 static struct platform_device qnap_ts209_nor_flash = {
  92         .name          = "physmap-flash",
  93         .id            = 0,
  94         .dev           = { .platform_data = &qnap_ts209_nor_flash_data, },
  95         .resource      = &qnap_ts209_nor_flash_resource,
  96         .num_resources = 1,
  97 };
  98
  99 /*****************************************************************************
 100  * PCI
 101  ****************************************************************************/
 102
 103 #define QNAP_TS209_PCI_SLOT0_OFFS       7
 104 #define QNAP_TS209_PCI_SLOT0_IRQ_PIN    6
 105 #define QNAP_TS209_PCI_SLOT1_IRQ_PIN    7
 106
 107 void __init qnap_ts209_pci_preinit(void)
 108 {
 109         int pin;
 110
 111         /*
 112          * Configure PCI GPIO IRQ pins
 113          */
 114         pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
 115         if (gpio_request(pin, "PCI Int1") == 0) {
 116                 if (gpio_direction_input(pin) == 0) {
 117                         set_irq_type(gpio_to_irq(pin), IRQT_LOW);
 118                 } else {
 119                         printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
 120                                         "set_irq_type pin %d\n", pin);
 121                         gpio_free(pin);
 122                 }
 123         } else {
 124                 printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
 125                                 "%d\n", pin);
 126         }
 127
 128         pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
 129         if (gpio_request(pin, "PCI Int2") == 0) {
 130                 if (gpio_direction_input(pin) == 0) {
 131                         set_irq_type(gpio_to_irq(pin), IRQT_LOW);
 132                 } else {
 133                         printk(KERN_ERR "qnap_ts209_pci_preinit failed "
 134                                         "to set_irq_type pin %d\n", pin);
 135                         gpio_free(pin);
 136                 }
 137         } else {
 138                 printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
 139                                 "%d\n", pin);
 140         }
 141 }
 142
 143 static int __init qnap_ts209_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 144 {
 145         /*
 146          * PCIE IRQ is connected internally (not GPIO)
 147          */
 148         if (dev->bus->number == orion_pcie_local_bus_nr())
 149                 return IRQ_ORION_PCIE0_INT;
 150
 151         /*
 152          * PCI IRQs are connected via GPIOs
 153          */
 154         switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
 155         case 0:
 156                 return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
 157         case 1:
 158                 return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
 159         default:
 160                 return -1;
 161         }
 162 }
 163
 164 static struct hw_pci qnap_ts209_pci __initdata = {
 165         .nr_controllers = 2,
 166         .preinit        = qnap_ts209_pci_preinit,
 167         .swizzle        = pci_std_swizzle,
 168         .setup          = orion_pci_sys_setup,
 169         .scan           = orion_pci_sys_scan_bus,
 170         .map_irq        = qnap_ts209_pci_map_irq,
 171 };
 172
 173 static int __init qnap_ts209_pci_init(void)
 174 {
 175         if (machine_is_ts_x09())
 176                 pci_common_init(&qnap_ts209_pci);
 177
 178         return 0;
 179 }
 180
 181 subsys_initcall(qnap_ts209_pci_init);
 182
 183 /*****************************************************************************
 184  * Ethernet
 185  ****************************************************************************/
 186
 187 static struct mv643xx_eth_platform_data qnap_ts209_eth_data = {
 188         .phy_addr       = 8,
 189         .force_phy_addr = 1,
 190 };
 191
 192 /*****************************************************************************
 193  * RTC S35390A on I2C bus
 194  ****************************************************************************/
 195
 196 #define TS209_RTC_GPIO  3
 197
 198 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
 199        .driver_name = "rtc-s35390a",
 200        .addr        = 0x30,
 201        .irq         = 0,
 202 };
 203
 204 /****************************************************************************
 205  * GPIO Attached Keys
 206  *     Power button is attached to the PIC microcontroller
 207  ****************************************************************************/
 208
 209 #define QNAP_TS209_GPIO_KEY_MEDIA       1
 210 #define QNAP_TS209_GPIO_KEY_RESET       2
 211
 212 static struct gpio_keys_button qnap_ts209_buttons[] = {
 213         {
 214                 .code           = KEY_RESTART,
 215                 .gpio           = QNAP_TS209_GPIO_KEY_MEDIA,
 216                 .desc           = "USB Copy Button",
 217                 .active_low     = 1,
 218         },
 219         {
 220                 .code           = KEY_POWER,
 221                 .gpio           = QNAP_TS209_GPIO_KEY_RESET,
 222                 .desc           = "Reset Button",
 223                 .active_low     = 1,
 224         }
 225 };
 226
 227 static struct gpio_keys_platform_data qnap_ts209_button_data = {
 228         .buttons        = qnap_ts209_buttons,
 229         .nbuttons       = ARRAY_SIZE(qnap_ts209_buttons),
 230 };
 231
 232 static struct platform_device qnap_ts209_button_device = {
 233         .name           = "gpio-keys",
 234         .id             = -1,
 235         .num_resources  = 0,
 236         .dev            = { .platform_data  = &qnap_ts209_button_data, },
 237 };
 238
 239 /*****************************************************************************
 240  * SATA
 241  ****************************************************************************/
 242 static struct mv_sata_platform_data qnap_ts209_sata_data = {
 243         .n_ports        = 2,
 244 };
 245
 246 /*****************************************************************************
 247
 248  * General Setup
 249  ****************************************************************************/
 250
 251 static struct platform_device *qnap_ts209_devices[] __initdata = {
 252         &qnap_ts209_nor_flash,
 253         &qnap_ts209_button_device,
 254 };
 255
 256 /*
 257  * QNAP TS-[12]09 specific power off method via UART1-attached PIC
 258  */
 259
 260 #define UART1_REG(x)  (UART1_VIRT_BASE + ((UART_##x) << 2))
 261
 262 static void qnap_ts209_power_off(void)
 263 {
 264         /* 19200 baud divisor */
 265         const unsigned divisor = ((ORION_TCLK + (8 * 19200)) / (16 * 19200));
 266
 267         pr_info("%s: triggering power-off...\n", __func__);
 268
 269         /* hijack uart1 and reset into sane state (19200,8n1) */
 270         orion_write(UART1_REG(LCR), 0x83);
 271         orion_write(UART1_REG(DLL), divisor & 0xff);
 272         orion_write(UART1_REG(DLM), (divisor >> 8) & 0xff);
 273         orion_write(UART1_REG(LCR), 0x03);
 274         orion_write(UART1_REG(IER), 0x00);
 275         orion_write(UART1_REG(FCR), 0x00);
 276         orion_write(UART1_REG(MCR), 0x00);
 277
 278         /* send the power-off command 'A' to PIC */
 279         orion_write(UART1_REG(TX), 'A');
 280 }
 281
 282 static void __init qnap_ts209_init(void)
 283 {
 284         /*
 285          * Setup basic Orion functions. Need to be called early.
 286          */
 287         orion_init();
 288
 289         /*
 290          * Setup flash mapping
 291          */
 292         orion_setup_cpu_win(ORION_DEV_BOOT, QNAP_TS209_NOR_BOOT_BASE,
 293                             QNAP_TS209_NOR_BOOT_SIZE, -1);
 294
 295         /*
 296          * Open a special address decode windows for the PCIE WA.
 297          */
 298         orion_write(ORION_REGS_VIRT_BASE | 0x20074, ORION_PCIE_WA_PHYS_BASE);
 299         orion_write(ORION_REGS_VIRT_BASE | 0x20070, (0x7941 |
 300                 (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
 301
 302         /*
 303          * Setup Multiplexing Pins --
 304          * MPP[0] Reserved
 305          * MPP[1] USB copy button (0 active)
 306          * MPP[2] Load defaults button (0 active)
 307          * MPP[3] GPIO RTC
 308          * MPP[4-5] Reserved
 309          * MPP[6] PCI Int A
 310          * MPP[7] PCI Int B
 311          * MPP[8-11] Reserved
 312          * MPP[12] SATA 0 presence
 313          * MPP[13] SATA 1 presence
 314          * MPP[14] SATA 0 active
 315          * MPP[15] SATA 1 active
 316          * MPP[16] UART1 RXD
 317          * MPP[17] UART1 TXD
 318          * MPP[18] SW_RST (0 active)
 319          * MPP[19] Reserved
 320          * MPP[20] PCI clock 0
 321          * MPP[21] PCI clock 1
 322          * MPP[22] USB 0 over current
 323          * MPP[23-25] Reserved
 324          */
 325         orion_write(MPP_0_7_CTRL, 0x3);
 326         orion_write(MPP_8_15_CTRL, 0x55550000);
 327         orion_write(MPP_16_19_CTRL, 0x5500);
 328         orion_gpio_set_valid_pins(0x3cc0fff);
 329
 330         /* register ts209 specific power-off method */
 331         pm_power_off = qnap_ts209_power_off;
 332
 333         platform_add_devices(qnap_ts209_devices,
 334                                 ARRAY_SIZE(qnap_ts209_devices));
 335
 336         /* Get RTC IRQ and register the chip */
 337         if (gpio_request(TS209_RTC_GPIO, "rtc") == 0) {
 338                 if (gpio_direction_input(TS209_RTC_GPIO) == 0)
 339                         qnap_ts209_i2c_rtc.irq = gpio_to_irq(TS209_RTC_GPIO);
 340                 else
 341                         gpio_free(TS209_RTC_GPIO);
 342         }
 343         if (qnap_ts209_i2c_rtc.irq == 0)
 344                 pr_warning("qnap_ts209_init: failed to get RTC IRQ\n");
 345         i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
 346
 347         orion_eth_init(&qnap_ts209_eth_data);
 348         orion_sata_init(&qnap_ts209_sata_data);
 349 }
 350
 351 MACHINE_START(TS209, "QNAP TS-109/TS-209")
 352         /* Maintainer:  Byron Bradley <byron.bbradley@gmail.com> */
 353         .phys_io        = ORION_REGS_PHYS_BASE,
 354         .io_pg_offst    = ((ORION_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 355         .boot_params    = 0x00000100,
 356         .init_machine   = qnap_ts209_init,
 357         .map_io         = orion_map_io,
 358         .init_irq       = orion_init_irq,
 359         .timer          = &orion_timer,
 360         .fixup          = tag_fixup_mem32,
 361 MACHINE_END