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 <asm/mach-types.h>
  25 #include <asm/gpio.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/pci.h>
  28 #include <asm/arch/orion.h>
  29 #include <asm/arch/platform.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 == orion_pcie_local_bus_nr())
 148                 return IRQ_ORION_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          = orion_pci_sys_setup,
 168         .scan           = orion_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 /*****************************************************************************
 192  * RTC S35390A on I2C bus
 193  ****************************************************************************/
 194 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
 195        .driver_name = "rtc-s35390a",
 196        .addr        = 0x30,
 197 };
 198
 199 /****************************************************************************
 200  * GPIO Attached Keys
 201  *     Power button is attached to the PIC microcontroller
 202  ****************************************************************************/
 203
 204 #define QNAP_TS209_GPIO_KEY_MEDIA       1
 205 #define QNAP_TS209_GPIO_KEY_RESET       2
 206
 207 static struct gpio_keys_button qnap_ts209_buttons[] = {
 208         {
 209                 .code           = KEY_RESTART,
 210                 .gpio           = QNAP_TS209_GPIO_KEY_MEDIA,
 211                 .desc           = "USB Copy Button",
 212                 .active_low     = 1,
 213         },
 214         {
 215                 .code           = KEY_POWER,
 216                 .gpio           = QNAP_TS209_GPIO_KEY_RESET,
 217                 .desc           = "Reset Button",
 218                 .active_low     = 1,
 219         }
 220 };
 221
 222 static struct gpio_keys_platform_data qnap_ts209_button_data = {
 223         .buttons        = qnap_ts209_buttons,
 224         .nbuttons       = ARRAY_SIZE(qnap_ts209_buttons),
 225 };
 226
 227 static struct platform_device qnap_ts209_button_device = {
 228         .name           = "gpio-keys",
 229         .id             = -1,
 230         .num_resources  = 0,
 231         .dev            = { .platform_data  = &qnap_ts209_button_data, },
 232 };
 233
 234 /*****************************************************************************
 235  * General Setup
 236  ****************************************************************************/
 237
 238 static struct platform_device *qnap_ts209_devices[] __initdata = {
 239         &qnap_ts209_nor_flash,
 240         &qnap_ts209_button_device,
 241 };
 242
 243 /*
 244  * QNAP TS-[12]09 specific power off method via UART1-attached PIC
 245  */
 246
 247 #define UART1_REG(x)  (UART1_BASE + ((UART_##x) << 2))
 248
 249 static void qnap_ts209_power_off(void)
 250 {
 251         /* 19200 baud divisor */
 252         const unsigned divisor = ((ORION_TCLK + (8 * 19200)) / (16 * 19200));
 253
 254         pr_info("%s: triggering power-off...\n", __func__);
 255
 256         /* hijack uart1 and reset into sane state (19200,8n1) */
 257         orion_write(UART1_REG(LCR), 0x83);
 258         orion_write(UART1_REG(DLL), divisor & 0xff);
 259         orion_write(UART1_REG(DLM), (divisor >> 8) & 0xff);
 260         orion_write(UART1_REG(LCR), 0x03);
 261         orion_write(UART1_REG(IER), 0x00);
 262         orion_write(UART1_REG(FCR), 0x00);
 263         orion_write(UART1_REG(MCR), 0x00);
 264
 265         /* send the power-off command 'A' to PIC */
 266         orion_write(UART1_REG(TX), 'A');
 267 }
 268
 269 static void __init qnap_ts209_init(void)
 270 {
 271         /*
 272          * Setup basic Orion functions. Need to be called early.
 273          */
 274         orion_init();
 275
 276         /*
 277          * Setup flash mapping
 278          */
 279         orion_setup_cpu_win(ORION_DEV_BOOT, QNAP_TS209_NOR_BOOT_BASE,
 280                             QNAP_TS209_NOR_BOOT_SIZE, -1);
 281
 282         /*
 283          * Open a special address decode windows for the PCIE WA.
 284          */
 285         orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
 286         orion_write(ORION_REGS_BASE | 0x20070, (0x7941 |
 287                 (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
 288
 289         /*
 290          * Setup Multiplexing Pins --
 291          * MPP[0] Reserved
 292          * MPP[1] USB copy button (0 active)
 293          * MPP[2] Load defaults button (0 active)
 294          * MPP[3] GPIO RTC
 295          * MPP[4-5] Reserved
 296          * MPP[6] PCI Int A
 297          * MPP[7] PCI Int B
 298          * MPP[8-11] Reserved
 299          * MPP[12] SATA 0 presence
 300          * MPP[13] SATA 1 presence
 301          * MPP[14] SATA 0 active
 302          * MPP[15] SATA 1 active
 303          * MPP[16] UART1 RXD
 304          * MPP[17] UART1 TXD
 305          * MPP[18] SW_RST (0 active)
 306          * MPP[19] Reserved
 307          * MPP[20] PCI clock 0
 308          * MPP[21] PCI clock 1
 309          * MPP[22] USB 0 over current
 310          * MPP[23-25] Reserved
 311          */
 312         orion_write(MPP_0_7_CTRL, 0x3);
 313         orion_write(MPP_8_15_CTRL, 0x55550000);
 314         orion_write(MPP_16_19_CTRL, 0x5500);
 315         orion_gpio_set_valid_pins(0x3cc0fff);
 316
 317         /* register ts209 specific power-off method */
 318         pm_power_off = qnap_ts209_power_off;
 319
 320         platform_add_devices(qnap_ts209_devices,
 321                                 ARRAY_SIZE(qnap_ts209_devices));
 322         i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
 323         orion_eth_init(&qnap_ts209_eth_data);
 324 }
 325
 326 MACHINE_START(TS209, "QNAP TS-109/TS-209")
 327         /* Maintainer:  Byron Bradley <byron.bbradley@gmail.com> */
 328         .phys_io        = ORION_REGS_BASE,
 329         .io_pg_offst    = ((ORION_REGS_BASE) >> 18) & 0xFFFC,
 330         .boot_params    = 0x00000100,
 331         .init_machine   = qnap_ts209_init,
 332         .map_io         = orion_map_io,
 333         .init_irq       = orion_init_irq,
 334         .timer          = &orion_timer,
 335 MACHINE_END