Date: Mon, 26 Oct 2009 08:41:10 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r198479 - head/sys/dev/ata/chipsets Message-ID: <200910260841.n9Q8fAiK082167@svn.freebsd.org>
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Author: mav Date: Mon Oct 26 08:41:10 2009 New Revision: 198479 URL: http://svn.freebsd.org/changeset/base/198479 Log: Fix SATA on nVidia MCP55 chipset. It needs some short time to allow BAR(5) memory access. PR: amd64/128686, amd64/132372, amd64/139156 MFC after: 3 days Modified: head/sys/dev/ata/chipsets/ata-nvidia.c Modified: head/sys/dev/ata/chipsets/ata-nvidia.c ============================================================================== --- head/sys/dev/ata/chipsets/ata-nvidia.c Mon Oct 26 07:43:41 2009 (r198478) +++ head/sys/dev/ata/chipsets/ata-nvidia.c Mon Oct 26 08:41:10 2009 (r198479) @@ -165,7 +165,8 @@ ata_nvidia_chipinit(device_t dev) /* enable control access */ pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) | 0x04,1); - + /* MCP55 seems to need some time to allow r_res2 read. */ + DELAY(10); if (ctlr->chip->cfg1 & NVQ) { /* clear interrupt status */ ATA_OUTL(ctlr->r_res2, offset, 0x00ff00ff);
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