staging: xgifb: setup initial video RAM size for systems without BIOS

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On embedded systems without a BIOS, the DRAM sizing register is 0 after
the boot, and the driver thinks we have only 1 MB video memory. On such
cases, use the PCI window size for the initial size. This information
is needed only to create the I/O mapping - the driver will later detect
and configure the memory size correctly. Limit the size to 16 MB as it
should be sufficient for all supported video modes.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Aaro Koskinen 2012-09-13 00:45:42 +03:00 • committed by Greg Kroah-Hartman

parent 1839c7ebd9

commit 98f4eade14

1 changed files with 6 additions and 4 deletions

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drivers/staging/xgifb/XGI_main_26.c

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