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authorSimon Glass <[email protected]>2015-03-02 12:40:49 -0700
committerSimon Glass <[email protected]>2015-04-16 19:27:40 -0600
commit892ff8e972efc7d4f42750e4fdbb2c2fefb78229 (patch)
tree04c9e2fb3ea8157b231dfca85d29412c281051ec /include
parent4564faeafbf11feb839e2e3f927be2f1a919ba96 (diff)
x86: Support machines with >4GB of RAM
Some systems have more than 4GB of RAM. U-Boot can only place things below 4GB so any memory above that should not be used. Ignore any such memory so that the memory size will not exceed the maximum. This prevents gd->ram_size exceeding 4GB which causes problems for PCI devices which use DMA. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Bin Meng <[email protected]> Reviewed-by: Lukasz Majewski <[email protected]>
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