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isci: cleanup silicon revision detection

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Perform checking per-pci device (even though all systems will only have
1 pci device in this generation), and delete support for silicon that
does not report a proper revision (i.e. A0).

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2011-07-01 11:41:21 -07:00
parent 4e4dca3de9
commit dc00c8b694
5 changed files with 31 additions and 73 deletions
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2
drivers/scsi/isci/phy.c
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@@ -211,7 +211,7 @@ sci_phy_link_layer_initialization(struct isci_phy *iphy,
llctl |= SCU_SAS_LLCTL_GEN_VAL(MAX_LINK_RATE, link_rate);
writel(llctl, &iphy->link_layer_registers->link_layer_control);
if (is_a0() || is_a2()) {
if (is_a2(ihost->pdev)) {
/* Program the max ARB time for the PHY to 700us so we inter-operate with
* the PMC expander which shuts down PHYs if the expander PHY generates too
* many breaks. This time value will guarantee that the initiator PHY will