[Pdbg] [PATCH v4 28/30] dts: Split P8 device trees into system and backend trees

Amitay Isaacs amitay at ozlabs.org
Thu Oct 3 14:19:07 AEST 2019


Signed-off-by: Amitay Isaacs <amitay at ozlabs.org>
Reviewed-by: Alistair Popple <alistair at popple.id.au>
---
 Makefile.am      |  2 +-
 p8-cronus.dts.m4 | 64 +++++++++++++++++-------------------------------
 p8-fsi.dts.m4    |  9 ++++---
 p8-host.dts.m4   |  2 +-
 p8-i2c.dts.m4    |  8 +++---
 p8-kernel.dts.m4 |  7 +++---
 p8-pib.dts.m4    |  1 +
 p8.dts.m4        | 55 +++++++++++++++++++++++++++++++++++++++++
 8 files changed, 96 insertions(+), 52 deletions(-)
 create mode 100644 p8.dts.m4

diff --git a/Makefile.am b/Makefile.am
index 69a21de..5829fb3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -72,7 +72,7 @@ endif
 DT = fake.dts fake2.dts p8-cronus.dts p9-cronus.dts \
      p8-fsi.dts p8-i2c.dts p8-kernel.dts \
      p9w-fsi.dts p9r-fsi.dts p9z-fsi.dts p9-kernel.dts \
-     p8-host.dts p9-host.dts
+     p8-host.dts p9-host.dts p8.dts
 
 DT_sources = $(DT:.dts=.dtb.S)
 DT_headers = $(DT:.dts=.dt.h)
diff --git a/p8-cronus.dts.m4 b/p8-cronus.dts.m4
index 4b62b9a..2221a68 100644
--- a/p8-cronus.dts.m4
+++ b/p8-cronus.dts.m4
@@ -1,45 +1,27 @@
 /dts-v1/;
 
 / {
-       #address-cells = <0x1>;
-       #size-cells = <0x0>;
-
-       fsi0: kernelfsi at 0 {
-	       #address-cells = <0x2>;
-	       #size-cells = <0x1>;
-	       compatible = "ibm,cronus-fsi";
-	       reg = <0x0 0x0 0x0>;
-
-	       index = <0x0>;
-	       status = "mustexist";
-
-	       pib at 1000 {
-			#address-cells = <0x2>;
-			#size-cells = <0x1>;
-			reg = <0x0 0x1000 0x7>;
-			index = <0x0>;
-			compatible = "ibm,cronus-pib";
-			include(p8-pib.dts.m4)dnl
-	       };
-
-	       hmfsi at 100000 {
-		       #address-cells = <0x2>;
-		       #size-cells = <0x1>;
-		       compatible = "ibm,cronus-hmfsi";
-		       reg = <0x0 0x100000 0x8000>;
-		       port = <0x1>;
-		       index = <0x1>;
-
-		       pib at 1000 {
-				#address-cells = <0x2>;
-				#size-cells = <0x1>;
-				reg = <0x0 0x1000 0x7>;
-				compatible = "ibm,cronus-pib";
-				index = <0x1>;
-				include(p8-pib.dts.m4)dnl
-		       };
-
-	       };
-       };
+       fsi0 {
+		compatible = "ibm,cronus-fsi";
+		index = <0x0>;
+		system-path = "/proc0/fsi";
+	};
+
+	pib0 {
+		compatible = "ibm,cronus-pib";
+		index = <0x0>;
+		system-path = "/proc0/pib";
+	};
+
+	fsi1 {
+		compatible = "ibm,cronus-fsi";
+		index = <0x1>;
+		system-path = "/proc1/fsi";
+	};
+
+	pib1 {
+		compatible = "ibm,cronus-pib";
+		index = <0x1>;
+		system-path = "/proc1/pib";
+	};
 };
-
diff --git a/p8-fsi.dts.m4 b/p8-fsi.dts.m4
index 406a8dc..70fdb14 100644
--- a/p8-fsi.dts.m4
+++ b/p8-fsi.dts.m4
@@ -20,6 +20,7 @@
 
 		index = <0x0>;
 		status = "mustexist";
+		system-path = "/proc0/fsi";
 
 		pib at 1000 {
 			#address-cells = <0x2>;
@@ -27,7 +28,7 @@
 			reg = <0x0 0x1000 0x7>;
 			compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
 			index = <0x0>;
-			include(p8-pib.dts.m4)dnl
+			system-path = "/proc0/pib";
 		};
 
 		hmfsi at 100000 {
@@ -37,6 +38,7 @@
 			reg = <0x0 0x100000 0x8000>;
 			port = <0x1>;
 			index = <0x1>;
+			system-path = "/proc1/fsi";
 
 			pib at 1000 {
 				#address-cells = <0x2>;
@@ -44,7 +46,7 @@
 				reg = <0x0 0x1000 0x7>;
 				compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
 				index = <0x1>;
-				include(p8-pib.dts.m4)dnl
+				system-path = "/proc1/pib";
 			};
 
 		};
@@ -56,6 +58,7 @@
 			reg = <0x0 0x180000 0x80000>;
 			port = <0x2>;
 			index = <0x2>;
+			system-path = "/proc2/fsi";
 
 			pib at 1000 {
 				#address-cells = <0x2>;
@@ -63,7 +66,7 @@
 				reg = <0x0 0x1000 0x7>;
 				compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
 				index = <0x2>;
-				include(p8-pib.dts.m4)dnl
+				system-path = "/proc2/pib";
 			};
 		};
 	};
diff --git a/p8-host.dts.m4 b/p8-host.dts.m4
index 7a2d253..c3f1a45 100644
--- a/p8-host.dts.m4
+++ b/p8-host.dts.m4
@@ -4,7 +4,7 @@ define(`CHIP',`pib@$1 {
 	      compatible = "ibm,host-pib";
 	      reg = <$1>;
 	      index = <$1>;
-	      include(p8-pib.dts.m4)dnl
+	      system-path = "/proc$1/pib";
 	}')dnl
 
 /dts-v1/;
diff --git a/p8-i2c.dts.m4 b/p8-i2c.dts.m4
index f1fcbd3..3ea4b59 100644
--- a/p8-i2c.dts.m4
+++ b/p8-i2c.dts.m4
@@ -13,7 +13,7 @@
 		reg = <0x50>;
 		index = <0x0>;
 		status = "mustexist";
-		include(p8-pib.dts.m4)dnl
+		system-path = "/proc0/pib";
 
 		opb at 20010 {
 			#address-cells = <0x1>;
@@ -28,6 +28,7 @@
 				reg = <0x100000 0x80000>;
 				port = <0x1>;
 				index = <0x1>;
+				system-path = "/proc1/fsi";
 
 				pib at 1000 {
 					#address-cells = <0x2>;
@@ -35,7 +36,7 @@
 					reg = <0x0 0x1000 0x7>;
 					compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
 					index = <0x1>;
-					include(p8-pib.dts.m4)dnl
+					system-path = "/proc1/pib";
 				};
 			};
 
@@ -46,6 +47,7 @@
 				reg = <0x180000 0x80000>;
 				port = <0x2>;
 				index = <0x2>;
+				system-path = "/proc2/fsi";
 
 				pib at 1000 {
 					#address-cells = <0x2>;
@@ -53,7 +55,7 @@
 					reg = <0x0 0x1000 0x7>;
 					compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
 					index = <0x2>;
-					include(p8-pib.dts.m4)dnl
+					system-path = "/proc2/pib";
 				};
 			};
 		};
diff --git a/p8-kernel.dts.m4 b/p8-kernel.dts.m4
index 4a59b78..6eacb92 100644
--- a/p8-kernel.dts.m4
+++ b/p8-kernel.dts.m4
@@ -9,9 +9,9 @@
 	       #size-cells = <0x1>;
 	       compatible = "ibm,kernel-fsi";
 	       reg = <0x0 0x0 0x0>;
-
 	       index = <0x0>;
 	       status = "mustexist";
+	       system-path = "/proc0/fsi";
 
 	       pib at 1000 {
 			#address-cells = <0x2>;
@@ -19,7 +19,7 @@
 			reg = <0x0 0x1000 0x7>;
 			index = <0x0>;
 			compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
-			include(p8-pib.dts.m4)dnl
+			system-path = "/proc0/pib";
 	       };
 
 	       hmfsi at 100000 {
@@ -29,6 +29,7 @@
 		       reg = <0x0 0x100000 0x8000>;
 		       port = <0x1>;
 		       index = <0x1>;
+		       system-path = "/proc1/fsi";
 
 		       pib at 1000 {
 				#address-cells = <0x2>;
@@ -36,7 +37,7 @@
 				reg = <0x0 0x1000 0x7>;
 				compatible = "ibm,fsi-pib", "ibm,power8-fsi-pib";
 				index = <0x1>;
-				include(p8-pib.dts.m4)dnl
+				system-path = "/proc1/pib";
 		       };
 
 	       };
diff --git a/p8-pib.dts.m4 b/p8-pib.dts.m4
index 82d11d8..044ce2b 100644
--- a/p8-pib.dts.m4
+++ b/p8-pib.dts.m4
@@ -44,6 +44,7 @@ CORE(14, 14)')dnl
 adu at 2020000 {
 	compatible = "ibm,power8-adu";
 	reg = <0x0 0x2020000 0x4>;
+	device_tree_path = "CONCAT(/mem,PROC_ID)";
 };
 
 nhtm at 2010880 {
diff --git a/p8.dts.m4 b/p8.dts.m4
new file mode 100644
index 0000000..aff477a
--- /dev/null
+++ b/p8.dts.m4
@@ -0,0 +1,55 @@
+define(`PROC',`
+define(`PROC_ID',`$1')dnl
+	proc$1 {
+		index = <$1>;
+
+		fsi {
+			index = <$1>;
+		};
+
+		pib {
+			#address-cells = <0x2>;
+			#size-cells = <0x1>;
+			index = <$1>;
+			include(p8-pib.dts.m4)dnl
+		};
+	};
+	mem$1 {
+		index = <$1>;
+	}'
+)dnl
+
+/dts-v1/;
+
+/ {
+	PROC(0);
+	PROC(1);
+	PROC(2);
+	PROC(3);
+	PROC(4);
+	PROC(5);
+	PROC(6);
+	PROC(7);
+	PROC(9);
+	PROC(10);
+	PROC(11);
+	PROC(12);
+	PROC(13);
+	PROC(14);
+	PROC(15);
+	PROC(16);
+	PROC(17);
+	PROC(18);
+	PROC(19);
+	PROC(21);
+	PROC(22);
+	PROC(23);
+	PROC(24);
+	PROC(25);
+	PROC(26);
+	PROC(27);
+	PROC(28);
+	PROC(29);
+	PROC(30);
+	PROC(31);
+};
-- 
2.21.0



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