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Do not attempt to enable AHCI mode on ALi SATA controllers other

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than the 5288.

It is not correctly implemented in earlier silicon, and the BIOS often
lies about AHCI capability on platforms where these chips are deployed.
With this change I am able to boot FreeBSD on the ASUS Vintage AH-1
barebones system.

Approved by:	sos
This commit is contained in:
Bruce M Simpson 2007-06-13 17:44:49 +00:00
parent a79e185ffa
commit d3fd8d85fc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=170678
1 changed files with 4 additions and 1 deletions
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5
sys/dev/ata/ata-chipset.c
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@ -1005,7 +1005,10 @@ ata_ali_chipinit(device_t dev)
/* if we have a memory resource we can likely do AHCI */
ctlr->r_type2 = SYS_RES_MEMORY;
ctlr->r_rid2 = PCIR_BAR(5);
if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
/* AHCI mode is correctly supported only on the ALi 5288. */
if ((ctlr->chip->chipid == ATA_ALI_5288) &&
(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
&ctlr->r_rid2, RF_ACTIVE)))
return ata_ahci_chipinit(dev);