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On a POWERPC PowerNV system, the host firmware is stored in a PNOR flash chip which contents is mapped on the LPC bus. This model adds a simple dummy device to map the contents of a block device in the host address space. Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20191021131215.3693-2-clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>