diff options
| author | Tejun Heo <tj@kernel.org> | 2010-07-24 16:53:48 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-08-25 19:24:16 -0400 |
| commit | 5f173107ecad83a50fc297f5a99bcda961501fc9 (patch) | |
| tree | 02b2ef16c50af54dcffd009233a8cd9767115e2e /drivers/ata/libahci.c | |
| parent | 6d981b9a91be29c0deae5ac794a4fe885027032f (diff) | |
| download | linux-5f173107ecad83a50fc297f5a99bcda961501fc9.tar.gz linux-5f173107ecad83a50fc297f5a99bcda961501fc9.tar.bz2 linux-5f173107ecad83a50fc297f5a99bcda961501fc9.zip | |
ahci: add HFLAG_YES_FBS and apply it to 88SE9128
88SE9128 can do FBS and sets it in HOST_CAP but forgets to set FBSCP
in PORT_CMD. Implement AHCI_HFLAG_YES_FBS and apply it to 88SE9128.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libahci.c')
| -rw-r--r-- | drivers/ata/libahci.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 81e772a94d59..666850d31df2 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -430,6 +430,12 @@ void ahci_save_initial_config(struct device *dev, cap &= ~HOST_CAP_SNTF; } + if (!(cap & HOST_CAP_FBS) && (hpriv->flags & AHCI_HFLAG_YES_FBS)) { + dev_printk(KERN_INFO, dev, + "controller can do FBS, turning on CAP_FBS\n"); + cap |= HOST_CAP_FBS; + } + if (force_port_map && port_map != force_port_map) { dev_printk(KERN_INFO, dev, "forcing port_map 0x%x -> 0x%x\n", port_map, force_port_map); @@ -2036,9 +2042,15 @@ static int ahci_port_start(struct ata_port *ap) u32 cmd = readl(port_mmio + PORT_CMD); if (cmd & PORT_CMD_FBSCP) pp->fbs_supported = true; - else + else if (hpriv->flags & AHCI_HFLAG_YES_FBS) { + dev_printk(KERN_INFO, dev, + "port %d can do FBS, forcing FBSCP\n", + ap->port_no); + pp->fbs_supported = true; + } else dev_printk(KERN_WARNING, dev, - "The port is not capable of FBS\n"); + "port %d is not capable of FBS\n", + ap->port_no); } if (pp->fbs_supported) { |