tree 6b91ef707e1a1e4d202ab817ac066509a72b1c8b
parent f7fcec93b619337feb9da829b8a9ab6ba86393bc
author Paul Mundt <lethal@linux-sh.org> 1287009421 +0900
committer Paul Mundt <lethal@linux-sh.org> 1287009421 +0900

sh: pci: Support slot 4 routing on SDK7786.

SDK7786 supports connecting either slot3 or 4 to the same PCIe port by
way of FPGA muxing. By default the vertical slot 3 on the baseboard is
enabled, so this adds in a command line option for forcibly enabling the
slot 4 edge connector.

If nothing has been specified on the command line, we fall back to
reading the resistor values for card presence to figure out where to
route the port to.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>