If the PCI-Ex hose link training is failed, the kernel will halt at the
PCI scan process on MPC8641HPCN board.
This patch will remove and free the hose from PCI host list if the
PCI hose link training is failed.
Signed-off-by: Zhang Wei <[EMAIL PROTECTED]>
---
arch/powerpc/platforms/86xx/pci.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/86xx/pci.c
b/arch/powerpc/platforms/86xx/pci.c
index 73cd5b0..0b7835c 100644
--- a/arch/powerpc/platforms/86xx/pci.c
+++ b/arch/powerpc/platforms/86xx/pci.c
@@ -210,8 +210,10 @@ int __init mpc86xx_add_bridge(struct device_node *dev)
/* Probe the hose link training status */
early_read_config_word(hose, 0, 0, PCIE_LTSSM, &val);
- if (val < PCIE_LTSSM_L0)
+ if (val < PCIE_LTSSM_L0) {
+ pcibios_free_controller(hose);
return -ENXIO;
+ }
/* Setup the PCIE host controller. */
mpc86xx_setup_pcie(hose, rsrc.start, rsrc.end - rsrc.start + 1);
--
1.5.1
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