soc/intel/skylake: Use Broadwell as comparision base for Skylake SOC

Use the Broadwell implementation as the comparison base for Skylake.

BRANCH=none
BUG=None
TEST=None

Change-Id: I22eb55ea89eb0d6883f98e4c72a6d243e819e6d8
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10340
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 371 insertions, 0 deletions

diff --git a/src/soc/intel/skylake/acpi/xhci.asl b/src/soc/intel/skylake/acpi/xhci.asl
new file mode 100644
index 0000000000..c41275ccd2
--- /dev/null
+++ b/src/soc/intel/skylake/acpi/xhci.asl
@@ -0,0 +1,371 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+// XHCI Controller 0:14.0
+
+Device (XHCI)
+{
+	Name (_ADR, 0x00140000)
+
+	Name (PLSD, 5) // Port Link State - RxDetect
+	Name (PLSP, 7) // Port Link State - Polling
+
+	OperationRegion (XPRT, PCI_Config, 0x00, 0x100)
+	Field (XPRT, AnyAcc, NoLock, Preserve)
+	{
+		Offset (0x0),
+		DVID, 16,
+		Offset (0x10),
+		, 16,
+		XMEM, 16, // MEM_BASE
+		Offset (0x40),
+		, 11,
+		SWAI, 1,
+		, 20,
+		Offset (0x44),
+		, 12,
+		SAIP, 2,
+		, 18,
+		Offset (0x74),
+		D0D3, 2,
+		, 6,
+		PMEE, 1,  // PME_EN
+		, 6,
+		PMES, 1,  // PME_STS
+		Offset (0xb0),
+		, 13,
+		MB13, 1,
+		MB14, 1,
+		Offset (0xd0),
+		PR2R, 32,  // USB2PR
+		PR2M, 32,  // USB2PRM
+		PR3R, 32,  // USB3PR
+		PR3M, 32,  // USB3PRM
+	}
+
+	// Clear status bits
+	Method (LPCL, 0, Serialized)
+	{
+		OperationRegion (XREG, SystemMemory,
+				 ShiftLeft (^XMEM, 16), 0x600)
+		Field (XREG, DWordAcc, Lock, Preserve)
+		{
+			Offset (0x510), // PORTSCNUSB3[0]
+			PSC0, 32,
+			Offset (0x520), // PORTSCNUSB3[1]
+			PSC1, 32,
+			Offset (0x530), // PORTSCNUSB3[2]
+			PSC2, 32,
+			Offset (0x540), // PORTSCNUSB3[3]
+			PSC3, 32,
+		}
+
+		// Port Enabled/Disabled (Bit 1)
+		Name (PEDB, ShiftLeft (1, 1))
+
+		// Change Status (Bits 23:17)
+		Name (CHST, ShiftLeft (0x7f, 17))
+
+		// Port 0
+		And (PSC0, Not (PEDB), Local0)
+		Or (Local0, CHST, PSC0)
+
+		// Port 1
+		And (PSC1, Not (PEDB), Local0)
+		Or (Local0, CHST, PSC1)
+
+		// Port 2
+		And (PSC2, Not (PEDB), Local0)
+		Or (Local0, CHST, PSC2)
+
+		// Port 3
+		And (PSC3, Not (PEDB), Local0)
+		Or (Local0, CHST, PSC3)
+	}
+
+	Method (LPS0, 0, Serialized)
+	{
+		OperationRegion (XREG, SystemMemory,
+				 ShiftLeft (^XMEM, 16), 0x600)
+		Field (XREG, DWordAcc, Lock, Preserve)
+		{
+			Offset (0x510), // PORTSCNUSB3
+			, 5,
+			PLS1, 4,	// [8:5] Port Link State
+			PPR1, 1,	// [9] Port Power
+			, 7,
+			CSC1, 1,	// [17] Connect Status Change
+			, 1,
+			WRC1, 1,	// [19] Warm Port Reset Change
+			, 11,
+			WPR1, 1,	// [31] Warm Port Reset
+			Offset (0x520), // PORTSCNUSB3
+			, 5,
+			PLS2, 4,	// [8:5] Port Link State
+			PPR2, 1,	// [9] Port Power
+			, 7,
+			CSC2, 1,	// [17] Connect Status Change
+			, 1,
+			WRC2, 1,	// [19] Warm Port Reset Change
+			, 11,
+			WPR2, 1,	// [31] Warm Port Reset
+			Offset (0x530), // PORTSCNUSB3
+			, 5,
+			PLS3, 4,	// [8:5] Port Link State
+			PPR3, 1,	// [9] Port Power
+			, 7,
+			CSC3, 1,	// [17] Connect Status Change
+			, 1,
+			WRC3, 1,	// [19] Warm Port Reset Change
+			, 11,
+			WPR3, 1,	// [31] Warm Port Reset
+			Offset (0x540), // PORTSCNUSB3
+			, 5,
+			PLS4, 4,	// [8:5] Port Link State
+			PPR4, 1,	// [9] Port Power
+			, 7,
+			CSC4, 1,	// [17] Connect Status Change
+			, 1,
+			WRC4, 1,	// [19] Warm Port Reset Change
+			, 11,
+			WPR4, 1,	// [31] Warm Port Reset
+		}
+
+		// Wait for all powered ports to finish polling
+		Store (10, Local0)
+		While (LOr (LOr (LAnd (LEqual (PPR1, 1), LEqual (PLS1, PLSP)),
+				 LAnd (LEqual (PPR2, 1), LEqual (PLS2, PLSP))),
+			    LOr (LAnd (LEqual (PPR3, 1), LEqual (PLS3, PLSP)),
+				 LAnd (LEqual (PPR4, 1), LEqual (PLS4, PLSP)))))
+		{
+			If (LEqual (Local0, 0)) {
+				Break
+			}
+			Decrement (Local0)
+			Stall (10)
+		}
+
+		// For each USB3 Port:
+		//   If port is disconnected (PLS=5 PP=1 CSC=0)
+		//     1) Issue warm reset (WPR=1)
+		//     2) Poll for warm reset complete (WRC=0)
+		//     3) Write 1 to port status to clear
+
+		// Local# indicate if port is reset
+		Store (0, Local1)
+		Store (0, Local2)
+		Store (0, Local3)
+		Store (0, Local4)
+
+		If (LAnd (LEqual (PLS1, PLSD),
+		          LAnd (LEqual (CSC1, 0), LEqual (PPR1, 1)))) {
+			Store (1, WPR1)	      // Issue warm reset
+			Store (1, Local1)
+		}
+		If (LAnd (LEqual (PLS2, PLSD),
+		          LAnd (LEqual (CSC2, 0), LEqual (PPR2, 1)))) {
+			Store (1, WPR2)	      // Issue warm reset
+			Store (1, Local2)
+		}
+		If (LAnd (LEqual (PLS3, PLSD),
+		          LAnd (LEqual (CSC3, 0), LEqual (PPR3, 1)))) {
+			Store (1, WPR3)	      // Issue warm reset
+			Store (1, Local3)
+		}
+		If (LAnd (LEqual (PLS4, PLSD),
+		          LAnd (LEqual (CSC4, 0), LEqual (PPR4, 1)))) {
+			Store (1, WPR4)	      // Issue warm reset
+			Store (1, Local4)
+		}
+
+		// Poll for warm reset complete on all ports that were reset
+		Store (10, Local0)
+		While (LOr (LOr (LAnd (LEqual (Local1, 1), LEqual (WRC1, 0)),
+				 LAnd (LEqual (Local2, 1), LEqual (WRC2, 0))),
+			    LOr (LAnd (LEqual (Local3, 1), LEqual (WRC3, 0)),
+			         LAnd (LEqual (Local4, 1), LEqual (WRC4, 0)))))
+		{
+			If (LEqual (Local0, 0)) {
+				Break
+			}
+			Decrement (Local0)
+			Stall (10)
+		}
+
+		// Clear status bits in all ports
+		LPCL ()
+	}
+
+	Method (_PSC, 0, NotSerialized)
+	{
+		Return (^D0D3)
+	}
+
+	Method (_PS0, 0, Serialized)
+	{
+		If (LEqual (^DVID, 0xFFFF)) {
+			Return ()
+		}
+		If (LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) {
+			Return ()
+		}
+
+		OperationRegion (XREG, SystemMemory,
+				 Add (ShiftLeft (^XMEM, 16), 0x8000), 0x200)
+		Field (XREG, DWordAcc, Lock, Preserve)
+		{
+			Offset (0x0e0), // AUX Reset Control 1
+			, 15,
+			AX15, 1,
+			Offset (0x154), // AUX Domain PM Control Register 2
+			, 31,
+			CLK2, 1,
+			Offset (0x16c), // AUX Clock Control
+			, 2,
+			CLK0, 1,
+			, 11,
+			CLK1, 1, // USB3 Port Aux/Core Clock Gating Enable
+		}
+
+		// If device is in D3, set back to D0
+		Store (^D0D3, Local0)
+		if (LEqual (Local0, 3)) {
+			Store (0, ^D0D3)
+		}
+
+		if (LNot (\ISWP())) {
+			// Clear PCI 0xB0[14:13]
+			Store (0, ^MB13)
+			Store (0, ^MB14)
+
+			// Clear MMIO 0x816C[14,2]
+			Store (0, CLK0)
+			Store (0, CLK1)
+
+			// Set MMIO 0x8154[31]
+			Store (1, CLK2)
+
+			// Handle per-port reset if needed
+			LPS0 ()
+
+			// Set MMIO 0x80e0[15]
+			Store (1, AX15)
+
+			// Clear PCI CFG offset 0x40[11]
+			Store (0, ^SWAI)
+
+			// Clear PCI CFG offset 0x44[13:12]
+			Store (0, ^SAIP)
+		}
+
+		Return ()
+	}
+
+	Method (_PS3, 0, Serialized)
+	{
+		If (LEqual (^DVID, 0xFFFF)) {
+			Return ()
+		}
+		If (LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) {
+			Return ()
+		}
+
+		OperationRegion (XREG, SystemMemory,
+				 Add (ShiftLeft (^XMEM, 16), 0x8000), 0x200)
+		Field (XREG, DWordAcc, Lock, Preserve)
+		{
+			Offset (0x0e0), // AUX Reset Control 1
+			, 15,
+			AX15, 1,
+			Offset (0x154), // AUX Domain PM Control Register 2
+			, 31,
+			CLK2, 1,
+			Offset (0x16c), // AUX Clock Control
+			, 2,
+			CLK0, 1,
+			, 11,
+			CLK1, 1, // USB3 Port Aux/Core Clock Gating Enable
+		}
+
+		Store (1, ^PMES) // Clear PME Status
+		Store (1, ^PMEE) // Enable PME
+
+		// If device is in D3, set back to D0
+		Store (^D0D3, Local0)
+		if (LEqual (Local0, 3)) {
+			Store (0, ^D0D3)
+		}
+
+		if (LNot (\ISWP())) {
+			// Set PCI 0xB0[14:13]
+			Store (1, ^MB13)
+			Store (1, ^MB14)
+
+			// Set MMIO 0x816C[14,2]
+			Store (1, CLK0)
+			Store (1, CLK1)
+
+			// Clear MMIO 0x8154[31]
+			Store (0, CLK2)
+
+			// Clear MMIO 0x80e0[15]
+			Store (0, AX15)
+
+			// Set PCI CFG offset 0x40[11]
+			Store (1, ^SWAI)
+
+			// Set PCI CFG offset 0x44[13:12]
+			Store (1, ^SAIP)
+		}
+
+		// Put device in D3
+		Store (3, ^D0D3)
+
+		Return ()
+	}
+
+	Name (_PRW, Package(){ 0x6d, 3 })
+
+	// Leave USB ports on for to allow Wake from USB
+
+	Method(_S3D,0)	// Highest D State in S3 State
+	{
+		Return (3)
+	}
+
+	Method(_S4D,0)	// Highest D State in S4 State
+	{
+		Return (3)
+	}
+
+	Device (HUB7)
+	{
+		Name (_ADR, 0x00000000)
+
+		// How many are there?
+		Device (PRT1) { Name (_ADR, 1) } // USB Port 0
+		Device (PRT2) { Name (_ADR, 2) } // USB Port 1
+		Device (PRT3) { Name (_ADR, 3) } // USB Port 2
+		Device (PRT4) { Name (_ADR, 4) } // USB Port 3
+		Device (PRT5) { Name (_ADR, 5) } // USB Port 4
+		Device (PRT6) { Name (_ADR, 6) } // USB Port 5
+	}
+}
+