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authorStefan Roese <sr@denx.de>2008-07-09 17:33:57 +0200
committerStefan Roese <sr@denx.de>2008-07-10 09:14:01 +0200
commit5d812b8b4ad9667c77a5bf92b4ba81699abc9fc3 (patch)
tree08dd2c7f7496d9f160d14bb94ec3d2776b783051 /board/lpd7a40x
parentcf1c2ed91df26903b956948f37f82de9e1158a89 (diff)
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ppc4xx: Enable support for > 2GB SDRAM on AMCC Katmai
Newer PPC's like 440SPe, 460EX/GT can be equipped with more than 2GB of SDRAM. To support such configurations, we "only" map the first 2GB via the TLB's. We need some free virtual address space for the remaining peripherals like, SoC devices, FLASH etc. Note that ECC is currently not supported on configurations with more than 2GB SDRAM. This is because we only map the first 2GB on such systems, and therefore the ECC parity byte of the remaining area can't be written. Signed-off-by: Stefan Roese <sr@denx.de>
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