---

yaml --- r: 340075 b: refs/heads/master c: 433683a h: refs/heads/master i: 340073: eaba223 340071: ea999ad v: v3
git-mirror · Nov 5, 2012 · 79f7d49 · 79f7d49
1 parent f431193
commit 79f7d49
Show file tree

Hide file tree

Showing 9 changed files with 74 additions and 45 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 38669e045dbf8f62a008898a7fb1e93975b3817c
+refs/heads/master: 433683a66401adb0150792e725cc4f631c94de46
diff --git a/trunk/Documentation/devicetree/bindings/arm/vexpress.txt b/trunk/Documentation/devicetree/bindings/arm/vexpress.txt
@@ -141,14 +141,19 @@ can be used to obtain required phandle in the tile's "aliases" node:
 - SP804 timers:
 	v2m_timer01 and v2m_timer23
 
-Current Linux implementation requires a "arm,v2m_timer" alias
-pointing at one of the motherboard's SP804 timers, if it is to be
-used as the system timer. This alias should be defined in the
-motherboard files.
-
-The tile description must define "ranges", "interrupt-map-mask" and
-"interrupt-map" properties to translate the motherboard's address
-and interrupt space into one used by the tile's processor.
+The tile description should define a "smb" node, describing the
+Static Memory Bus between the tile and motherboard. It must define
+the following properties:
+- "simple-bus" compatible value (to ensure creation of the children)
+	compatible = "simple-bus";
+- mapping of the SMB CS/offset addresses into main address space:
+	#address-cells = <2>;
+	#size-cells = <1>;
+	ranges = <...>;
+- interrupts mapping:
+	#interrupt-cells = <1>;
+	interrupt-map-mask = <0 0 63>;
+	interrupt-map = <...>;
 
 
 Example of a VE tile description (simplified)
@@ -200,13 +205,20 @@ Example of a VE tile description (simplified)
 		};
 	};
 
-	motherboard {
+	smb {
+		compatible = "simple-bus";
+
+		#address-cells = <2>;
+		#size-cells = <1>;
 		/* CS0 is visible at 0x08000000 */
 		ranges = <0 0 0x08000000 0x04000000>;
+
+		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 63>;
 		/* Active high IRQ 0 is connected to GIC's SPI0 */
 		interrupt-map = <0 0 0 &gic 0 0 4>;
+
+		/include/ "vexpress-v2m-rs1.dtsi"
 	};
 };
 
-/include/ "vexpress-v2m-rs1.dtsi"
diff --git a/trunk/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/trunk/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
@@ -17,18 +17,16 @@
  * CHANGES TO vexpress-v2m.dtsi!
  */
 
-/ {
-	aliases {
-		arm,v2m_timer = &v2m_timer01;
-	};
-
 	motherboard {
-		compatible = "simple-bus";
+		model = "V2M-P1";
+		arm,hbi = <0x190>;
 		arm,vexpress,site = <0>;
 		arm,v2m-memory-map = "rs1";
+		compatible = "arm,vexpress,v2m-p1", "simple-bus";
 		#address-cells = <2>; /* SMB chipselect number and offset */
 		#size-cells = <1>;
 		#interrupt-cells = <1>;
+		ranges;
 
 		flash@0,00000000 {
 			compatible = "arm,vexpress-flash", "cfi-flash";
@@ -340,4 +338,3 @@
 			};
 		};
 	};
-};
diff --git a/trunk/arch/arm/boot/dts/vexpress-v2m.dtsi b/trunk/arch/arm/boot/dts/vexpress-v2m.dtsi
@@ -17,17 +17,15 @@
  * CHANGES TO vexpress-v2m-rs1.dtsi!
  */
 
-/ {
-	aliases {
-		arm,v2m_timer = &v2m_timer01;
-	};
-
 	motherboard {
-		compatible = "simple-bus";
+		model = "V2M-P1";
+		arm,hbi = <0x190>;
 		arm,vexpress,site = <0>;
+		compatible = "arm,vexpress,v2m-p1", "simple-bus";
 		#address-cells = <2>; /* SMB chipselect number and offset */
 		#size-cells = <1>;
 		#interrupt-cells = <1>;
+		ranges;
 
 		flash@0,00000000 {
 			compatible = "arm,vexpress-flash", "cfi-flash";
@@ -339,4 +337,3 @@
 			};
 		};
 	};
-};
diff --git a/trunk/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts b/trunk/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts
@@ -220,14 +220,19 @@
 		};
 	};
 
-	motherboard {
+	smb {
+		compatible = "simple-bus";
+
+		#address-cells = <2>;
+		#size-cells = <1>;
 		ranges = <0 0 0 0x08000000 0x04000000>,
 			 <1 0 0 0x14000000 0x04000000>,
 			 <2 0 0 0x18000000 0x04000000>,
 			 <3 0 0 0x1c000000 0x04000000>,
 			 <4 0 0 0x0c000000 0x04000000>,
 			 <5 0 0 0x10000000 0x04000000>;
 
+		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 63>;
 		interrupt-map = <0 0  0 &gic 0  0 4>,
 				<0 0  1 &gic 0  1 4>,
@@ -272,7 +277,7 @@
 				<0 0 40 &gic 0 40 4>,
 				<0 0 41 &gic 0 41 4>,
 				<0 0 42 &gic 0 42 4>;
+
+		/include/ "vexpress-v2m-rs1.dtsi"
 	};
 };
-
-/include/ "vexpress-v2m-rs1.dtsi"
diff --git a/trunk/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/trunk/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -305,14 +305,19 @@
 		};
 	};
 
-	motherboard {
+	smb {
+		compatible = "simple-bus";
+
+		#address-cells = <2>;
+		#size-cells = <1>;
 		ranges = <0 0 0 0x08000000 0x04000000>,
 			 <1 0 0 0x14000000 0x04000000>,
 			 <2 0 0 0x18000000 0x04000000>,
 			 <3 0 0 0x1c000000 0x04000000>,
 			 <4 0 0 0x0c000000 0x04000000>,
 			 <5 0 0 0x10000000 0x04000000>;
 
+		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 63>;
 		interrupt-map = <0 0  0 &gic 0  0 4>,
 				<0 0  1 &gic 0  1 4>,
@@ -357,7 +362,7 @@
 				<0 0 40 &gic 0 40 4>,
 				<0 0 41 &gic 0 41 4>,
 				<0 0 42 &gic 0 42 4>;
+
+		/include/ "vexpress-v2m-rs1.dtsi"
 	};
 };
-
-/include/ "vexpress-v2m-rs1.dtsi"
diff --git a/trunk/arch/arm/boot/dts/vexpress-v2p-ca5s.dts b/trunk/arch/arm/boot/dts/vexpress-v2p-ca5s.dts
@@ -182,14 +182,19 @@
 		};
 	};
 
-	motherboard {
+	smb {
+		compatible = "simple-bus";
+
+		#address-cells = <2>;
+		#size-cells = <1>;
 		ranges = <0 0 0x08000000 0x04000000>,
 			 <1 0 0x14000000 0x04000000>,
 			 <2 0 0x18000000 0x04000000>,
 			 <3 0 0x1c000000 0x04000000>,
 			 <4 0 0x0c000000 0x04000000>,
 			 <5 0 0x10000000 0x04000000>;
 
+		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 63>;
 		interrupt-map = <0 0  0 &gic 0  0 4>,
 				<0 0  1 &gic 0  1 4>,
@@ -234,7 +239,7 @@
 				<0 0 40 &gic 0 40 4>,
 				<0 0 41 &gic 0 41 4>,
 				<0 0 42 &gic 0 42 4>;
+
+		/include/ "vexpress-v2m-rs1.dtsi"
 	};
 };
-
-/include/ "vexpress-v2m-rs1.dtsi"
diff --git a/trunk/arch/arm/boot/dts/vexpress-v2p-ca9.dts b/trunk/arch/arm/boot/dts/vexpress-v2p-ca9.dts
@@ -265,13 +265,18 @@
 		};
 	};
 
-	motherboard {
+	smb {
+		compatible = "simple-bus";
+
+		#address-cells = <2>;
+		#size-cells = <1>;
 		ranges = <0 0 0x40000000 0x04000000>,
 			 <1 0 0x44000000 0x04000000>,
 			 <2 0 0x48000000 0x04000000>,
 			 <3 0 0x4c000000 0x04000000>,
 			 <7 0 0x10000000 0x00020000>;
 
+		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 63>;
 		interrupt-map = <0 0  0 &gic 0  0 4>,
 				<0 0  1 &gic 0  1 4>,
@@ -316,7 +321,7 @@
 				<0 0 40 &gic 0 40 4>,
 				<0 0 41 &gic 0 41 4>,
 				<0 0 42 &gic 0 42 4>;
+
+		/include/ "vexpress-v2m.dtsi"
 	};
 };
-
-/include/ "vexpress-v2m.dtsi"
diff --git a/trunk/arch/arm/mach-vexpress/v2m.c b/trunk/arch/arm/mach-vexpress/v2m.c
@@ -446,17 +446,20 @@ static void __init v2m_dt_init_irq(void)
 
 static void __init v2m_dt_timer_init(void)
 {
-	struct device_node *node;
-	const char *path;
-	int err;
+	struct device_node *node = NULL;
 
 	vexpress_clk_of_init();
 
-	err = of_property_read_string(of_aliases, "arm,v2m_timer", &path);
-	if (WARN_ON(err))
-		return;
-	node = of_find_node_by_path(path);
-	v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0));
+	do {
+		node = of_find_compatible_node(node, NULL, "arm,sp804");
+	} while (node && vexpress_get_site_by_node(node) != VEXPRESS_SITE_MB);
+	if (node) {
+		pr_info("Using SP804 '%s' as a clock & events source\n",
+				node->full_name);
+		v2m_sp804_init(of_iomap(node, 0),
+				irq_of_parse_and_map(node, 0));
+	}
+
 	if (arch_timer_of_register() != 0)
 		twd_local_timer_of_register();