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pm2fb: memclock setting corrections 

This patch disables a memory clock setting if a board has been initialized by
BIOS.  This allows using the memory clock set by manufacturer of the board.

This patch also sets default clock for 3dlabs Permedia 2V reference board's
clock to 75MHz (BIOS setting for EONtronic Permedia 2Vboard), because the
default 83MHz can be too high.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt 2007-05-08 00:39:57 -07:00 committed by Linus Torvalds
parent 76c7d3ffe3
commit 9a31f0f767
1 changed files with 2 additions and 2 deletions
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4
drivers/video/pm2fb.c
View File

@ -1141,10 +1141,10 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev,
default_par->mem_control, default_par->boot_address,
default_par->mem_config);
default_par->memclock = CVPPC_MEMCLOCK;
if(default_par->mem_control == 0 &&
default_par->boot_address == 0x31 &&
default_par->mem_config == 0x259fffff) {
default_par->memclock = CVPPC_MEMCLOCK;
default_par->mem_control=0;
default_par->boot_address=0x20;
default_par->mem_config=0xe6002021;
@ -1164,7 +1164,7 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev,
DPRINTK("We have not been initialized by VGA BIOS "
"and are running on an 3dlabs reference board\n");
DPRINTK("Initializing card timings manually...\n");
default_par->memclock=70000;
default_par->memclock=74894;
}
}