src/soc/intel/tigerlake/acpi/tcss_xhci.asl

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 OperationRegion (XPRT, SystemMemory, BASE(_ADR), 0x100)
   4 Field (XPRT, ByteAcc, NoLock, Preserve)
   5 {
   6         VDID,  32,
   7         Offset(0x74),   /* 0x74, XHCI CFG Power Control And Status */
   8         D0D3,  2,       /* 0x74 BIT[1:0] */
   9             ,  6,
  10         PMEE,  1,       /* PME Enable */
  11             ,  6,
  12         PMES,  1,       /* PME Status */
  13 }
  14
  15 Method (_PS0, 0, Serialized)
  16 {
  17         If (\_SB.PCI0.TXHC.PMEE == 1) {
  18                 /* Clear PME_EN of CPU xHCI */
  19                 \_SB.PCI0.TXHC.PMEE = 0
  20         }
  21 }
  22
  23 Method (_PS3, 0, Serialized)
  24 {
  25         If (\_SB.PCI0.TXHC.PMEE == 0) {
  26                 /* Set PME_EN of CPU xHCI */
  27                 \_SB.PCI0.TXHC.PMEE = 1
  28         }
  29 }
  30
  31 Method (_S0W, 0x0, NotSerialized)
  32 {
  33 #if CONFIG(D3COLD_SUPPORT)
  34         Return (0x4)
  35 #else
  36         Return (0x3)
  37 #endif  // D3COLD_SUPPORT
  38 }
  39
  40 /*
  41  * Variable to skip TCSS/TBT D3 cold; 1+: Skip D3CE, 0 - Enable D3CE
  42  * TCSS D3 Cold and TBT RTD3 is only available when system power state is in S0.
  43  */
  44 Name (SD3C, 0)
  45
  46 #if CONFIG(D3COLD_SUPPORT)
  47 Method (_PR0)
  48 {
  49         Return (Package () { \_SB.PCI0.D3C })
  50 }
  51
  52 Method (_PR3)
  53 {
  54         Return (Package () { \_SB.PCI0.D3C })
  55 }
  56 #endif  // D3COLD_SUPPORT
  57
  58 /*
  59  * XHCI controller _DSM method
  60  */
  61 Method (_DSM, 4, serialized)
  62 {
  63         Return (Buffer() { 0 })
  64 }
  65
  66 /*
  67  * _SXD and _SXW methods
  68  */
  69 Method (_S3D, 0, NotSerialized)
  70 {
  71         Return (3)
  72 }
  73
  74 Method (_S4D, 0, NotSerialized)
  75 {
  76         Return (3)
  77 }
  78
  79 Method (_S3W, 0, NotSerialized)
  80 {
  81         Return (3)
  82 }
  83
  84 Method (_S4W, 0, NotSerialized)
  85 {
  86         Return (3)
  87 }
  88
  89 /*
  90  * Power resource for wake
  91  */
  92 Method (_PRW, 0)
  93 {
  94         Return (Package() { 0x6D, 4 })
  95 }
  96
  97 /*
  98  * Device sleep wake
  99  */
 100 Method (_DSW, 3)
 101 {
 102         C2PM (Arg0, Arg1, Arg2, DCPM)
 103         /* If entering Sx (Arg1 > 1), need to skip TCSS D3Cold & TBT RTD3/D3Cold. */
 104         SD3C = Arg1
 105 }
 106
 107 /*
 108  * xHCI Root Hub Device
 109  */
 110 Device (RHUB)
 111 {
 112         Name (_ADR, 0)
 113
 114         /* High Speed Ports */
 115         Device (HS01)
 116         {
 117                 Name (_ADR, 0x01)
 118         }
 119
 120         /* Super Speed Ports */
 121         Device (SS01)
 122         {
 123                 Name (_ADR, 0x02)
 124                 Method (_DSD, 0, NotSerialized)
 125                 {
 126                         Return( Package ()
 127                         {
 128                                 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 129                                 Package ()
 130                                 {
 131                                         Package (2) { "usb4-host-interface", \_SB.PCI0.TDM0 },
 132                                         Package (2) { "usb4-port-number", 0 }
 133                                 }
 134                         })
 135                 }
 136         }
 137
 138         Device (SS02)
 139         {
 140                 Name (_ADR, 0x03)
 141                 Method (_DSD, 0, NotSerialized)
 142                 {
 143                         Return( Package ()
 144                         {
 145                                 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 146                                 Package ()
 147                                 {
 148                                         Package (2) { "usb4-host-interface", \_SB.PCI0.TDM0 },
 149                                         Package (2) { "usb4-port-number", 1 }
 150                                 }
 151                         })
 152                 }
 153         }
 154
 155         Device (SS03)
 156         {
 157                 Name (_ADR, 0x04)
 158                 Method (_DSD, 0, NotSerialized)
 159                 {
 160                         Return( Package ()
 161                         {
 162                                 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 163                                 Package ()
 164                                 {
 165                                         Package (2) { "usb4-host-interface", \_SB.PCI0.TDM1 },
 166                                         Package (2) { "usb4-port-number", 0 }
 167                                 }
 168                         })
 169                 }
 170         }
 171
 172         Device (SS04)
 173         {
 174                 Name (_ADR, 0x05)
 175                 Method (_DSD, 0, NotSerialized)
 176                 {
 177                         Return( Package ()
 178                         {
 179                                 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 180                                 Package ()
 181                                 {
 182                                         Package (2) { "usb4-host-interface", \_SB.PCI0.TDM1 },
 183                                         Package (2) { "usb4-port-number", 1 }
 184                                 }
 185                         })
 186                 }
 187         }
 188 }