On 15/12/11 14:02, Pawel Moll wrote:

This patch adds Device Tree file for the CoreTile Express A15x2
(V2P-CA15) with Test Chip 1.

This doesn't work as-is with the software model as accessing some of the
peripherals that aren't modeled will cause an exception.  Is it worth
having a device tree file suitable for the models? Or are the models too
configurable for this to be workable?

As the chip's GIC has 160 interrupt inputs and equivalent SMM
(FPGA) has GIC synthesised with 256 interrupts, NR_IRQS is
increased.

[...]

[...]

+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};

If CONFIG_ARM_ATAG_DTB_COMPAT is enabled the device tree will end up
with two nodes describing the memory ("memory" and "memory@80000000" in
this case).

From 22cc6a3410077b99d81e42c4d7f4e29eab6070e3 Mon Sep 17 00:00:00 2001

From: David Vrabel <redacted>
Date: Mon, 9 Jan 2012 16:13:19 +0000
Subject: [PATCH] ARM: vexpress: rename device tree "memory@..." nodes to
"memory"

If CONFIG_ARM_ATAG_DTB_COMPAT enabled it expects the memory
information to be in a node named "memory".  If the memory is
described in a different node, the device tree will end up with two
nodes describing the memory.

Signed-off-by: David Vrabel <redacted>
---
 arch/arm/boot/dts/vexpress-v2p-aem-v7a.dts  |    2 +-
 arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts |    2 +-
 arch/arm/boot/dts/vexpress-v2p-ca5s.dts     |    2 +-
 arch/arm/boot/dts/vexpress-v2p-ca9.dts      |    2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/vexpress-v2p-aem-v7a.dts

b/arch/arm/boot/dts/vexpress-v2p-aem-v7a.dts
index 064132e..6667936 100644

--- a/arch/arm/boot/dts/vexpress-v2p-aem-v7a.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-aem-v7a.dts

@@ -33,7 +33,7 @@
 		};
 	};

-	memory@80000000 {
+	memory {
 		device_type = "memory";
 		reg = <0x80000000 0x40000000>;
 	};

diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts

b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts
index 02cada5..0d82ac8 100644

--- a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts

@@ -43,7 +43,7 @@
 		};
 	};

-	memory@80000000 {
+	memory {
 		device_type = "memory";
 		reg = <0x80000000 0x40000000>;
 	};

diff --git a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts

b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts
index da26a13..e4c3935 100644

--- a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts

@@ -45,7 +45,7 @@
 		};
 	};

-	memory@80000000 {
+	memory {
 		device_type = "memory";
 		reg = <0x80000000 0x40000000>;
 	};

diff --git a/arch/arm/boot/dts/vexpress-v2p-ca9.dts

b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
index 84542e7..d4aa1cc 100644

--- a/arch/arm/boot/dts/vexpress-v2p-ca9.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca9.dts

@@ -59,7 +59,7 @@
 		};
 	};

-	memory@60000000 {
+	memory {
 		device_type = "memory";
 		reg = <0x60000000 0x40000000>;
 	};

-- 
1.7.2.5

David