sh: pci: Toggle configuration accesses on SH7786.

After configuration accesses have been completed deassert the
configuration access enable cleanly.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/ops-sh7786.c b/arch/sh/drivers/pci/ops-sh7786.c
index 79a5ddae733d..4728199f71a6 100644
--- a/arch/sh/drivers/pci/ops-sh7786.c
+++ b/arch/sh/drivers/pci/ops-sh7786.c
@@ -58,6 +58,9 @@ static int sh7786_pcie_config_access(unsigned char access_type,
         else
                 pci_write_reg(chan, *data, SH4A_PCIEPDR);
 
+        /* Disable the configuration access */
+        pci_write_reg(chan, 0, SH4A_PCIEPCTLR);
+
         return PCIBIOS_SUCCESSFUL;
 }