diff options
| author | Federico G. Schwindt <fgsch@cvs.openbsd.org> | 2005-10-02 18:20:02 +0000 |
|---|---|---|
| committer | Federico G. Schwindt <fgsch@cvs.openbsd.org> | 2005-10-02 18:20:02 +0000 |
| commit | e9c34241019d6671074f3eaaa7bce4ff83731207 (patch) | |
| tree | c30991f6f597763d53aa0a6eb3c3944b6b1f26d3 /sys | |
| parent | 2b1707f96de64e0aa13c6a5642da6f976df8898f (diff) | |
add special handling for some o2micro devices, so by instance atheros works.
adapted from similar linux change by
Aristeu Sergio Rozanski Filho <aris at cathedrallabs dot org>
via Leonardo Chiquitto Filho <leonardo at iken dot com dot br>.
test compiled by pedro@.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/pccbb.c | 34 | ||||
| -rw-r--r-- | sys/dev/pci/pccbbvar.h | 5 |
2 files changed, 35 insertions, 4 deletions
diff --git a/sys/dev/pci/pccbb.c b/sys/dev/pci/pccbb.c index f73714cb3c5..d47a8cd4fdf 100644 --- a/sys/dev/pci/pccbb.c +++ b/sys/dev/pci/pccbb.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pccbb.c,v 1.37 2005/09/16 02:20:23 fgsch Exp $ */ +/* $OpenBSD: pccbb.c,v 1.38 2005/10/02 18:20:00 fgsch Exp $ */ /* $NetBSD: pccbb.c,v 1.96 2004/03/28 09:49:31 nakayama Exp $ */ /* @@ -332,6 +332,18 @@ struct yenta_chipinfo { { MAKEID(PCI_VENDOR_CIRRUS, PCI_PRODUCT_CIRRUS_CL_PD6833), CB_CIRRUS, PCCBB_PCMCIA_MEM_32}, + /* older O2Micro bridges */ + { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6729), + CB_OLDO2MICRO, PCCBB_PCMCIA_MEM_32}, + { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6730), + CB_OLDO2MICRO, PCCBB_PCMCIA_MEM_32}, + { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6872), /* 68[71]2 */ + CB_OLDO2MICRO, PCCBB_PCMCIA_MEM_32}, + { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6832), + CB_OLDO2MICRO, PCCBB_PCMCIA_MEM_32}, + { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6836), + CB_OLDO2MICRO, PCCBB_PCMCIA_MEM_32}, + /* sentinel, or Generic chip */ { 0 /* null id */ , CB_UNKNOWN, PCCBB_PCMCIA_MEM_32}, }; @@ -833,6 +845,24 @@ pccbb_chipinit(sc) pci_conf_write(pc, tag, TOPIC100_PMCSR, (reg & ~TOPIC100_PMCSR_MASK) | TOPIC100_PMCSR_D0); break; + + case CB_OLDO2MICRO: + /* + * older bridges have problems with both read prefetch and + * write bursting depending on the combination of the chipset, + * bridge and the cardbus card. so disable them to be on the + * safe side. One example is O2Micro 6812 with Atheros AR5012 + * chipsets + */ + DPRINTF(("%s: old O2Micro bridge found\n", + sc->sc_dev.dv_xname, reg)); + reg = pci_conf_read(pc, tag, O2MICRO_RESERVED1); + pci_conf_write(pc, tag, O2MICRO_RESERVED1, reg & + ~(O2MICRO_RES_READ_PREFETCH | O2MICRO_RES_WRITE_BURST)); + reg = pci_conf_read(pc, tag, O2MICRO_RESERVED2); + pci_conf_write(pc, tag, O2MICRO_RESERVED2, reg & + ~(O2MICRO_RES_READ_PREFETCH | O2MICRO_RES_WRITE_BURST)); + break; } /* Close all memory and I/O windows. */ @@ -1979,7 +2009,7 @@ pccbb_pcmcia_io_alloc(pch, start, size, align, pcihp) * 3. if size is larger, shift msb left once. * 4. obtain mask value to decrement msb. */ - bus_size_t size_tmp = size; + bus_size_t size_tmp = size; int shifts = 0; mask = 1; diff --git a/sys/dev/pci/pccbbvar.h b/sys/dev/pci/pccbbvar.h index 8e927ad91b3..ff77ee572da 100644 --- a/sys/dev/pci/pccbbvar.h +++ b/sys/dev/pci/pccbbvar.h @@ -1,4 +1,4 @@ -/* $OpenBSD: pccbbvar.h,v 1.8 2005/09/23 22:55:12 fgsch Exp $ */ +/* $OpenBSD: pccbbvar.h,v 1.9 2005/10/02 18:20:01 fgsch Exp $ */ /* $NetBSD: pccbbvar.h,v 1.13 2000/06/08 10:28:29 haya Exp $ */ /* * Copyright (c) 1999 HAYAKAWA Koichi. All rights reserved. @@ -54,7 +54,8 @@ #define CB_TOPIC97 7 /* Toshiba ToPIC97 */ #define CB_CIRRUS 8 /* Cirrus Logic CL-PD683X */ #define CB_TI125X 9 /* TI PCI1250/1251(B)/1450 */ -#define CB_CHIPS_LAST 10 /* Sentinel */ +#define CB_OLDO2MICRO 10 /* O2Micro */ +#define CB_CHIPS_LAST 11 /* Sentinel */ #define PCCARD_VCC_UKN 0x00 /* Unknown */ #define PCCARD_VCC_5V 0x01 |