powerpc/40x: Add support for PPC40x boards with > 512MB SDRAM
This patch adds support for boards with more that 512MByte RAM. Currently only 512MB of memory are enabled in the DCCR/ICCR real-mode cache control registers. This patch now enables caching in real-mode for 2GByte. Signed-off-by:Stefan Roese <sr@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com>
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