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[PATCH] pm2fb: Manual configuration of timings for Elsa Winner 2000 Office 

Attached is a small patch which configures the correct memory clock and
timings on the Elsa Winner 2000 Office pm2 based card.  This is necessary when
the card is used on a platform which does not support PC style BIOS
initialization.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Peter 'p2' De Schrijver 2005-11-07 01:00:42 -08:00 committed by Linus Torvalds
parent 1cc650c69f
commit 9127fa2859
1 changed files with 16 additions and 0 deletions
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16
drivers/video/pm2fb.c
View File

@ -1120,6 +1120,22 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev,
default_par->mem_control, default_par->boot_address, default_par->mem_control, default_par->boot_address,
default_par->mem_config); default_par->mem_config);
if(default_par->mem_control == 0 &&
default_par->boot_address == 0x31 &&
default_par->mem_config == 0x259fffff &&
pdev->subsystem_vendor == 0x1048 &&
pdev->subsystem_device == 0x0a31) {
DPRINTK("subsystem_vendor: %04x, subsystem_device: %04x\n",
pdev->subsystem_vendor, pdev->subsystem_device);
DPRINTK("We have not been initialized by VGA BIOS "
"and are running on an Elsa Winner 2000 Office\n");
DPRINTK("Initializing card timings manually...\n");
default_par->mem_control=0;
default_par->boot_address=0x20;
default_par->mem_config=0xe6002021;
default_par->memclock=100000;
}
/* Now work out how big lfb is going to be. */ /* Now work out how big lfb is going to be. */
switch(default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) { switch(default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) {
case PM2F_MEM_BANKS_1: case PM2F_MEM_BANKS_1: