diff options
| author | Geert Uytterhoeven | 2011-10-20 13:42:24 +0200 |
|---|---|---|
| committer | Florian Tobias Schandinat | 2011-11-11 16:55:55 +0000 |
| commit | 17bdf48952d3f5c0be8137058f81d398d4606820 (patch) | |
| tree | 8d18540fd6343dec288a58e5e1044fe2823b8912 /drivers | |
| parent | 0e0d13364b417a40266999c61671db0ef8690ad3 (diff) | |
fbdev/cirrusfb: Add support for Picasso IV in Zorro II mode
In Zorro II mode, the Village Tronic Picasso IV graphics card shows up as
either 2 or 3 Zorro devices:
- One for the registers of the Cirrus Logic graphics chip,
- One for the first bank of 2 MiB of graphics memory,
- An optional one for the second bank of 2 MiB of graphics memory,
if there was enough free Zorro II address space.
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')
| -rw-r--r-- | drivers/video/cirrusfb.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index 357139ab7a0f..816433ffec9d 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -287,6 +287,7 @@ struct zorrocl { /* If zero, use autoprobe on RAM device */ u32 ramoffset; /* Offset of video RAM in first Zorro device */ zorro_id ramid; /* Zorro ID of RAM device */ + zorro_id ramid2; /* Zorro ID of optional second RAM device */ }; static const struct zorrocl zcl_sd64 __devinitconst = { @@ -316,6 +317,13 @@ static const struct zorrocl zcl_picasso4_z3 __devinitconst = { .ramoffset = 0x01000000, }; +static const struct zorrocl zcl_picasso4_z2 __devinitconst = { + .type = BT_PICASSO4, + .regoffset = 0x10000, + .ramid = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_IV_Z2_RAM1, + .ramid2 = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_IV_Z2_RAM2, +}; + static const struct zorro_device_id cirrusfb_zorro_table[] __devinitconst = { { @@ -333,6 +341,9 @@ static const struct zorro_device_id cirrusfb_zorro_table[] __devinitconst = { }, { .id = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_IV_Z3, .driver_data = (unsigned long)&zcl_picasso4_z3, + }, { + .id = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_IV_Z2_REG, + .driver_data = (unsigned long)&zcl_picasso4_z2, }, { 0 } }; @@ -2257,6 +2268,16 @@ static int __devinit cirrusfb_zorro_register(struct zorro_dev *z, } rambase = zorro_resource_start(ram); ramsize = zorro_resource_len(ram); + if (zcl->ramid2 && + (ram = zorro_find_device(zcl->ramid2, NULL))) { + if (zorro_resource_start(ram) != rambase + ramsize) { + dev_warn(info->device, + "Skipping non-contiguous RAM at %pR\n", + &ram->resource); + } else { + ramsize += zorro_resource_len(ram); + } + } } dev_info(info->device, |