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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2011-10-20 13:42:25 +0200 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-11-11 16:55:55 +0000 |
| commit | e78bb882bf318bb41e17b33729cca3bdd26b42a0 (patch) | |
| tree | aebcc9a817fa7b411b3aa6b7d2e8e6aba92666e2 /drivers/video/cirrusfb.c | |
| parent | 17bdf48952d3f5c0be8137058f81d398d4606820 (diff) | |
| download | op-kernel-dev-e78bb882bf318bb41e17b33729cca3bdd26b42a0.zip op-kernel-dev-e78bb882bf318bb41e17b33729cca3bdd26b42a0.tar.gz | |
fbdev/cirrusfb: Add support for "64 MiB" version of Picasso IV
Some Village Tronic Picasso IV graphics cards identify as a 64 MiB Zorro
device in Zorro III mode.
While the total graphics memory size is the same on such cards, the offset
of the graphics memory differs. Add a quirk to handle this.
Based on src/sys/arch/amiga/dev/grf_cl.c from NetBSD.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/cirrusfb.c')
| -rw-r--r-- | drivers/video/cirrusfb.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index 816433f..6ea505c 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -314,7 +314,7 @@ static const struct zorrocl zcl_picasso4_z3 __devinitconst = { .type = BT_PICASSO4, .regoffset = 0x00600000, .ramsize = 4 * MB_, - .ramoffset = 0x01000000, + .ramoffset = 0x01000000, /* 0x02000000 for 64 MiB boards */ }; static const struct zorrocl zcl_picasso4_z2 __devinitconst = { @@ -2259,6 +2259,10 @@ static int __devinit cirrusfb_zorro_register(struct zorro_dev *z, ramsize = zcl->ramsize; if (ramsize) { rambase = zorro_resource_start(z) + zcl->ramoffset; + if (zorro_resource_len(z) == 64 * MB_) { + /* Quirk for 64 MiB Picasso IV */ + rambase += zcl->ramoffset; + } } else { struct zorro_dev *ram = zorro_find_device(zcl->ramid, NULL); if (!ram || !zorro_resource_len(ram)) { |
