mb/google/poppy: Configure ports and endpoints for sensor and CIO2 devices

Bind the camera sensor and CIO2 devices through the ports and endpoints
configuration available in _DSD ACPI object.

* Port represents an interface in a device.
* Endpoint represents a connection to that interface.

BUG=b:38326541
BRANCH=none
TEST=Build and boot poppy. Dump and verify that the generated DSDT table
has the required entries.

Change-Id: I6d822165bb9a0cd6f7d4cdcb36333887953110a3
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/20053
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

3 files changed, 147 insertions, 1 deletions

diff --git a/src/mainboard/google/poppy/acpi/ipu_mainboard.asl b/src/mainboard/google/poppy/acpi/ipu_mainboard.asl
new file mode 100644
index 0000000000..3cf82ae162
--- /dev/null
+++ b/src/mainboard/google/poppy/acpi/ipu_mainboard.asl
@@ -0,0 +1,74 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 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.
+ */
+
+Scope (\_SB.PCI0.CIO2)
+{
+        /* Define two ports for CIO2 device where endpoint of port0
+	is connected to CAM0 and endpoint of port1 is connected to CAM1 */
+
+	Name (_DSD, Package () {
+		ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+		Package () {
+			Package () { "port0", "PRT0" },
+			Package () { "port1", "PRT1" },
+		}
+	})
+
+	Name (PRT0, Package () {
+		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+		Package () {
+			Package () { "port", 0 }, /* csi 0 */
+		},
+		ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+		Package () {
+			Package () { "endpoint0", "EP00" },
+		}
+	})
+
+	Name (EP00, Package() {
+		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+		Package () {
+			Package () { "endpoint", 0 },
+			Package () { "clock-lanes", 0 },
+			Package () { "data-lanes", Package () { 1, 2, 3, 4 } },
+			Package () { "remote-endpoint",
+				Package() { \_SB.PCI0.I2C2.CAM0, 0, 0 }
+			},
+		}
+	})
+
+	Name (PRT1, Package () {
+		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+		Package () {
+			Package () { "port", 1 }, /* csi 1 */
+		},
+		ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+		Package () {
+			Package () { "endpoint0", "EP10" },
+		}
+	})
+
+	Name (EP10, Package() {
+		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+		Package () {
+			Package () { "endpoint", 0 },
+			Package () { "clock-lanes", 0 },
+			Package () { "data-lanes", Package () { 1, 2 } },
+			Package () { "remote-endpoint",
+				Package() { \_SB.PCI0.I2C4.CAM1, 0, 0 }
+			},
+		}
+	})
+}
diff --git a/src/mainboard/google/poppy/acpi/mipi_camera.asl b/src/mainboard/google/poppy/acpi/mipi_camera.asl
index 069c82a866..13d33f62d4 100644
--- a/src/mainboard/google/poppy/acpi/mipi_camera.asl
+++ b/src/mainboard/google/poppy/acpi/mipi_camera.asl
@@ -49,7 +49,6 @@ Scope (\_SB.PCI0.I2C2)
 		}
 
 		Name (_DEP, Package() {\_SB.PCI0.I2C2.PMIC})
-
 		Name (_CRS, ResourceTemplate ()
 		{
 			I2cSerialBus (0x0010, ControllerInitiated, 0x00061A80,
@@ -58,6 +57,42 @@ Scope (\_SB.PCI0.I2C2)
 				)
 		})
 
+		/* Port0 of CAM0 is connected to port0 of CIO2 device */
+		Name (_DSD, Package () {
+			ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+			Package () {
+				Package () { "port0", "PRT0" },
+			}
+		})
+
+		Name (PRT0, Package() {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				Package () { "port", 0 },
+			},
+			ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+			Package () {
+				Package () { "endpoint0", "EP00" },
+			}
+		})
+
+		Name (EP00, Package() {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				Package () { "endpoint", 0 },
+				Package () { "clock-lanes", 0 },
+				Package () { "data-lanes",
+					Package () { 1, 2, 3, 4 }
+				},
+				Package () { "link-frequencies",
+					Package() { 1190400000, 640000000 }
+				},
+				Package () { "remote-endpoint",
+					Package() { \_SB.PCI0.CIO2, 0, 0 }
+				},
+			}
+		})
+
 		Method (SSDB, 0, Serialized)
 		{
 			Return (Buffer (0x5E)
@@ -124,6 +159,42 @@ Scope (\_SB.PCI0.I2C4)
 			)
 		})
 
+		/* Port0 of CAM1 is connected to port1 of CIO2 device */
+		Name (_DSD, Package () {
+			ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+			Package () {
+				Package () { "port0", "PRT0" },
+			}
+		})
+
+		Name (PRT0, Package() {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				Package () { "port", 0 },
+			},
+			ToUUID ("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
+			Package () {
+				Package () { "endpoint0", "EP00" },
+			}
+		})
+
+		Name (EP00, Package() {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				Package () { "endpoint", 0 },
+				Package () { "clock-lanes", 0 },
+				Package () { "data-lanes",
+					Package () { 1, 2 }
+				},
+				Package () { "link-frequencies",
+					Package() { 844800000 }
+				},
+				Package () { "remote-endpoint",
+					Package() { \_SB.PCI0.CIO2, 1, 0 }
+				},
+			}
+		})
+
 		Method (SSDB, 0, Serialized)
 		{
 			Return (Buffer (0x5E)
diff --git a/src/mainboard/google/poppy/dsdt.asl b/src/mainboard/google/poppy/dsdt.asl
index 5008e0521b..b7a8c94bb4 100644
--- a/src/mainboard/google/poppy/dsdt.asl
+++ b/src/mainboard/google/poppy/dsdt.asl
@@ -50,6 +50,7 @@ DefinitionBlock(
 	}
 
 	/* MIPI camera */
+	#include "acpi/ipu_mainboard.asl"
 	#include "acpi/mipi_camera.asl"
 
 	/* Chrome OS specific */