From: John Jacques <john.jacq...@intel.com>
Rescan after re-initializing the PEIs.
Signed-off-by: John Jacques <john.jacq...@intel.com>
---
drivers/pci/host/pcie-axxia.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/pci/host/pcie-axxia.c b/drivers/pci/host/pcie-axxia.c
index ac53246..f1b5ad7 100644
--- a/drivers/pci/host/pcie-axxia.c
+++ b/drivers/pci/host/pcie-axxia.c
@@ -983,18 +983,29 @@ int
axxia_pcie_reset(void)
{
unsigned int val;
+ struct pci_bus *pci_bus = NULL;
+ int sub_buses;
if (0 == control_set || NULL == _pp)
return -1;
+ /* Re-initialize the PEIs */
pei_setup(control_value);
+ /* Enable the LTSSM */
axxia_cc_gpreg_readl(_pp, PEI_GENERAL_CORE_CTL_REG, &val);
msleep(100);
val |= 0x1;
axxia_cc_gpreg_writel(_pp, 0x1, PEI_GENERAL_CORE_CTL_REG);
msleep(100);
+ /* Re-scan the Bus */
+ while (NULL != (pci_bus = pci_find_next_bus(pci_bus))) {
+ pr_info("Rescanning PCI Bus %d\n", pci_bus->number);
+ sub_buses = pci_rescan_bus(pci_bus);
+ pr_info("%d subordinate busses...\n", sub_buses);
+ }
+
return 0;
}
--
2.7.4
--
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