QuarkPlatformPkg/Acpi/AcpiTables/Dsdt/CY8C9540A.asi

   1 /** @file
   2
   3 Copyright (c) 2013-2015 Intel Corporation.
   4
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 CY8C9540A 40 Bit I/O Expander with EEPROM.
   8
   9 **/
  10
  11 Device(CY8C)
  12 {
  13     Name(_HID, "INT3490") // Cypress CY8C9540A Io Expander Function.
  14     Name(_CID, "INT3490")
  15
  16     Name(RBUF, ResourceTemplate()
  17     {
  18         I2CSerialBus(0x20, ControllerInitiated, 100000, AddressingMode7Bit, "\\_SB.PCI0.GIP0.I2C_", 0, ResourceConsumer, , )
  19         GpioInt (Level, ActiveLow, Exclusive, PullDefault, , "\\_SB.PCI0.GIP0.GPO", 0, ResourceConsumer, , ) {QUARK_GPIO5_MAPPING} /* GPIO<5> is INT_S0 */
  20     })
  21     Method(_CRS, 0x0, NotSerialized)
  22     {
  23         CreateByteField(RBUF, 16, OB1)
  24         if (LEqual (ALTS, 0))
  25         {
  26             Store(0x20, OB1)
  27         }
  28         Else
  29         {
  30             Store(0x21, OB1)
  31         }
  32         Return(RBUF)
  33     }
  34     Method(_STA, 0x0, NotSerialized)
  35     {
  36         //
  37         // Only Galileo platform has this device.
  38         // EFI_PLATFORM_TYPE enum value Galileo = 6.
  39         //
  40         If(LNotEqual(PTYP, 6))
  41         {
  42           return (0)
  43         }
  44         Return(0xf)
  45     }
  46 }
  47