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Diffstat (limited to 'src/dev/Device.py')
| -rw-r--r-- | src/dev/Device.py | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/dev/Device.py b/src/dev/Device.py index d51d7bd8d..e4656078d 100644 --- a/src/dev/Device.py +++ b/src/dev/Device.py @@ -1,3 +1,15 @@ +# Copyright (c) 2012-2016 ARM Limited +# All rights reserved. +# +# The license below extends only to copyright in the software and shall +# not be construed as granting a license to any other intellectual +# property including but not limited to intellectual property relating +# to a hardware implementation of the functionality of the software +# licensed hereunder. You may use the software subject to the license +# terms below provided that you ensure that this notice is replicated +# unmodified and in its entirety in all distributions of the software, +# modified or unmodified, in source code or in binary form. +# # Copyright (c) 2005-2007 The Regents of The University of Michigan # All rights reserved. # @@ -25,9 +37,11 @@ # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # Authors: Nathan Binkert +# Glenn Bergmans from m5.params import * from m5.proxy import * +from m5.util.fdthelper import * from MemObject import MemObject class PioDevice(MemObject): @@ -37,6 +51,25 @@ class PioDevice(MemObject): pio = SlavePort("Programmed I/O port") system = Param.System(Parent.any, "System this device is part of") + def generateBasicPioDeviceNode(self, state, name, pio_addr, + size, interrupts = None): + node = FdtNode("%s@%x" % (name, long(pio_addr))) + node.append(FdtPropertyWords("reg", + state.addrCells(pio_addr) + + state.sizeCells(size) )) + + if interrupts: + if any([i < 32 for i in interrupts]): + raise(("Interrupt number smaller than 32 "+ + " in PioDevice %s") % name) + + # subtracting 32 because Linux assumes that SPIs start at 0, while + # gem5 uses the internal GIC numbering (SPIs start at 32) + node.append(FdtPropertyWords("interrupts", sum( + [[0, i - 32, 4] for i in interrupts], []) )) + + return node + class BasicPioDevice(PioDevice): type = 'BasicPioDevice' cxx_header = "dev/io_device.hh" |