[gem5-users] How to find the address range of an ARM IO device

[Md Rubel Ahmed via gem5-users]

Greetings,

I was trying to get the address range of each device in the arm device tree.

In gem5/src/dev/arm/RealView.py , I find many off-chip device like uart below:

uart = Pl011(pio_addr=0x1c090000, interrupt=ArmSPI(num=37))

I am interested to know the memory-mapped address (address range) of this 
device.

I found additional information below about the off-chip device address but 
facing hard times understanding the relation (if any) between them. Any pointer 
is highly appreciated.

# Ranges based on excluding what is part of on-chip I/O (gic,
    # a9scu)
    _off_chip_ranges = [AddrRange(0x2F000000, size='16MiB'),
                        AddrRange(0x30000000, size='256MiB'),
                        AddrRange(0x40000000, size='512MiB'),
                        AddrRange(0x18000000, size='64MiB'),
                        AddrRange(0x1C000000, size='64MiB')]

Thanks,
Md Rubel Ahmed

Graduate Student, Dept. of CSE

University of South Fl​orida, Tampa, FL

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