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authorGlenn Bergmans <glenn.bergmans@arm.com>2016-01-22 15:25:40 +0000
committerCurtis Dunham <curtis.dunham@arm.com>2018-01-29 22:22:06 +0000
commit1a51f335ffbcf9abb685ae18daa8d00aecc6bee8 (patch)
tree0c631173f16ab60ec4f1bd098578485ff81e4b80 /src
parent7e9adcce565a00de9091d7d0f9b46d9e479e6625 (diff)
downloadgem5-1a51f335ffbcf9abb685ae18daa8d00aecc6bee8.tar.xz
arm: DT autogeneration - Generate memory node
Implements a high level method for generating a Device Tree node for an AbstractMemory object. Change-Id: I544ec642f182f103df26de535fdfaf03b3787a08 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/5964 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Diffstat (limited to 'src')
-rw-r--r--src/arch/arm/ArmSystem.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/arch/arm/ArmSystem.py b/src/arch/arm/ArmSystem.py
index 245ac55df..f76140bc9 100644
--- a/src/arch/arm/ArmSystem.py
+++ b/src/arch/arm/ArmSystem.py
@@ -88,10 +88,22 @@ class ArmSystem(System):
# creating a node called '/' which will then be merged with the
# root instead of appended.
+ def generateMemNode(mem_range):
+ node = FdtNode("memory@%x" % long(mem_range.start))
+ node.append(FdtPropertyStrings("device_type", ["memory"]))
+ node.append(FdtPropertyWords("reg",
+ state.addrCells(mem_range.start) +
+ state.sizeCells(mem_range.size()) ))
+ return node
+
root = FdtNode('/')
root.append(state.addrCellsProperty())
root.append(state.sizeCellsProperty())
+ # Add memory nodes
+ for mem_range in self.mem_ranges:
+ root.append(generateMemNode(mem_range))
+
for node in self.recurseDeviceTree(state):
# Merge root nodes instead of adding them (for children
# that need to add multiple root level nodes)