From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
When the mx6 PCI conctroller is initialized in the bootloader we see a kernel
hang inside imx6_add_pcie_port().
Adding a 30ms delay allows the kernel to boot.
Suggested-by: David Müller <d.mueller@xxxxxxxxx>
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
---
I am happy to get feedback on how to properly fix this.
Thanks
drivers/pci/host/pci-imx6.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index a568efa..669f771 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -507,6 +507,8 @@ static int __init imx6_add_pcie_port(struct pcie_port *pp,
pp->root_bus_nr = -1;
pp->ops = &imx6_pcie_host_ops;
+ usleep_range(25000, 30000);
+
ret = dw_pcie_host_init(pp);
if (ret) {
dev_err(&pdev->dev, "failed to initialize host\n");
--
1.8.3.2
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