| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007-2009 coresystems GmbH |
| * Copyright (C) 2015 Google Inc. |
| * Copyright (C) 2015 Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* |
| * USB Port Wake Enable (UPWE) on usb attach/detach |
| * Arg0 - Port Number |
| * Arg1 - Port 1 Status and control offset |
| * Arg2 - xHCI Memory-mapped address |
| */ |
| Method (UPWE, 3, Serialized) |
| { |
| /* Local0 = Arg1 + ((Arg0 - 1) * 0x10) */ |
| Add (Arg1, Multiply (Subtract (Arg0, 1), 0x10), Local0) |
| |
| /* Map ((XMEM << 16) + Local0 in PSCR */ |
| OperationRegion (PSCR, SystemMemory, |
| Add (ShiftLeft (Arg2, 16), Local0), 0x10) |
| Field (PSCR, AnyAcc, NoLock, Preserve) |
| { |
| , 25, |
| UPCE, 1, |
| UPDE, 1, |
| } |
| Store (One, UPCE) |
| Store (One, UPDE) |
| } |
| |
| /* |
| * USB Wake Enable Setup (UWES) |
| * Arg0 - Port enable bitmap |
| * Arg1 - Port 1 Status and control offset |
| * Arg2 - xHCI Memory-mapped address |
| */ |
| Method (UWES, 3, Serialized) |
| { |
| Store (Arg0, Local0) |
| |
| While (One) { |
| FindSetRightBit (Local0, Local1) |
| If (LEqual (Local1, Zero)) { |
| Break |
| } |
| UPWE (Local1, Arg1, Arg2) |
| /* |
| * Clear the lowest set bit in Local0 since it was |
| * processed. |
| * Local0 = Local0 & (Local0 - 1) |
| */ |
| And (Local0, Subtract (Local0, 1), Local0) |
| } |
| } |
| |
| /* XHCI Controller 0:14.0 */ |
| |
| Device (XHCI) |
| { |
| Name (_ADR, 0x00140000) |
| |
| Name (_PRW, Package () { GPE0_PME_B0, 3 }) |
| |
| Method (_DSW, 3) |
| { |
| Store (Arg0, PMEE) |
| UWES (And (\U2WE, 0x3FF), 0x480, XMEM) |
| UWES (And (\U3WE, 0x3F), 0x540, XMEM) |
| } |
| |
| Name (_S3D, 3) /* D3 supported in S3 */ |
| Name (_S4D, 3) /* D3 supported in S4 */ |
| Name (_S0W, 3) /* D3 can wake device in S0 */ |
| Name (_S3W, 3) /* D3 can wake system from S3 */ |
| Name (_S4W, 3) /* D3 can wake system from S4 */ |
| |
| OperationRegion (XPRT, PCI_Config, 0x00, 0x100) |
| Field (XPRT, AnyAcc, NoLock, Preserve) |
| { |
| Offset (0x0), |
| DVID, 16, /* VENDORID */ |
| Offset (0x10), |
| , 16, |
| XMEM, 16, /* MEM_BASE */ |
| Offset (0x74), |
| D0D3, 2, /* POWERSTATE */ |
| , 6, |
| PMEE, 1, /* PME_EN */ |
| , 6, |
| PMES, 1, /* PME_STS */ |
| } |
| |
| OperationRegion (XREG, SystemMemory, |
| Add (ShiftLeft (XMEM, 16), 0x8000), 0x200) |
| Field (XREG, DWordAcc, Lock, Preserve) |
| { |
| Offset (0x1c4), /* USB2PMCTRL */ |
| , 2, |
| UPSW, 2, /* U2PSUSPGP */ |
| } |
| |
| Method (_PSC, 0, Serialized) |
| { |
| Return (^D0D3) |
| } |
| |
| Method (_PS0, 0, Serialized) |
| { |
| If (LEqual (^DVID, 0xFFFF)) { |
| Return |
| } |
| If (LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) { |
| Return |
| } |
| |
| /* If device is in D3, set back to D0 */ |
| If (LEqual (^D0D3, 3)) { |
| Store (Zero, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| } |
| |
| /* Disable USB2 PHY SUS Well Power Gating */ |
| Store (Zero, ^UPSW) |
| |
| /* |
| * Apply USB2 PHPY Power Gating workaround if needed. |
| */ |
| If (^^PMC.UWAB) { |
| /* Write to MTPMC to have PMC disable power gating */ |
| Store (1, ^^PMC.MPMC) |
| |
| /* Wait for PCH_PM_STS.MSG_FULL_STS to be 0 */ |
| Store (10, Local0) |
| While (^^PMC.PMFS) { |
| If (LNot (Local0)) { |
| Break |
| } |
| Decrement (Local0) |
| Sleep (10) |
| } |
| } |
| } |
| |
| Method (_PS3, 0, Serialized) |
| { |
| If (LEqual (^DVID, 0xFFFF)) { |
| Return |
| } |
| If (LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) { |
| Return |
| } |
| |
| /* Clear PME Status */ |
| Store (1, ^PMES) |
| |
| /* Enable PME */ |
| Store (1, ^PMEE) |
| |
| /* If device is in D3, set back to D0 */ |
| If (LEqual (^D0D3, 3)) { |
| Store (Zero, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| } |
| |
| /* Enable USB2 PHY SUS Well Power Gating in D0/D0i2/D0i3/D3 */ |
| Store (3, ^UPSW) |
| |
| /* Now put device in D3 */ |
| Store (3, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| |
| /* |
| * Apply USB2 PHPY Power Gating workaround if needed. |
| * This code assumes XDCI is disabled, if it is enabled |
| * then this must also check if it is in D3 state too. |
| */ |
| If (^^PMC.UWAB) { |
| /* Write to MTPMC to have PMC enable power gating */ |
| Store (3, ^^PMC.MPMC) |
| |
| /* Wait for PCH_PM_STS.MSG_FULL_STS to be 0 */ |
| Store (10, Local0) |
| While (^^PMC.PMFS) { |
| If (LNot (Local0)) { |
| Break |
| } |
| Decrement (Local0) |
| Sleep (10) |
| } |
| } |
| } |
| |
| /* Root Hub for Skylake-LP PCH */ |
| Device (RHUB) |
| { |
| Name (_ADR, Zero) |
| |
| /* USB2 */ |
| Device (HS01) { Name (_ADR, 1) } |
| Device (HS02) { Name (_ADR, 2) } |
| Device (HS03) { Name (_ADR, 3) } |
| Device (HS04) { Name (_ADR, 4) } |
| Device (HS05) { Name (_ADR, 5) } |
| Device (HS06) { Name (_ADR, 6) } |
| Device (HS07) { Name (_ADR, 7) } |
| Device (HS08) { Name (_ADR, 8) } |
| Device (HS09) { Name (_ADR, 9) } |
| Device (HS10) { Name (_ADR, 10) } |
| |
| /* USBr */ |
| Device (USR1) { Name (_ADR, 11) } |
| Device (USR2) { Name (_ADR, 12) } |
| |
| /* USB3 */ |
| Device (SS01) { Name (_ADR, 13) } |
| Device (SS02) { Name (_ADR, 14) } |
| Device (SS03) { Name (_ADR, 15) } |
| Device (SS04) { Name (_ADR, 16) } |
| Device (SS05) { Name (_ADR, 17) } |
| Device (SS06) { Name (_ADR, 18) } |
| } |
| } |