diff options
| author | Richard Zhu <hongxing.zhu@nxp.com> | 2017-11-27 13:06:15 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | ff8fb71c96f25bcbb7f35ec04849beae1ee4f911 (patch) | |
| tree | a84b010a7be6b385a83fadf3f0916b78232f72a9 /drivers/pci | |
| parent | bfe648d1b1ef287d59de2556203620e6455f35da (diff) | |
MLK-16982 PCI: imx: fix the failure of the msi verification
Failed to verify the MSI in the EP RC system.
Root cause: the MSI address is not fetched corretly.
The second port of iMX8MQ EVK board should be used
as EP port, not the first one.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <frank.li@nxp.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/host/pci-imx6-ep-driver.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/pci/host/pci-imx6-ep-driver.c b/drivers/pci/host/pci-imx6-ep-driver.c index dd300a99ab21..4ea0782a4c60 100644 --- a/drivers/pci/host/pci-imx6-ep-driver.c +++ b/drivers/pci/host/pci-imx6-ep-driver.c @@ -51,10 +51,10 @@ static int imx_pcie_ep_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int ret = 0, index = 0, found = 0; - unsigned int msi_addr = 0, cpu_base; + unsigned int hard_wired = 0, msi_addr = 0, cpu_base; struct resource cfg_res; const char *name = NULL; - struct device_node *np; + struct device_node *np = NULL; struct device *dev = &pdev->dev; struct imx_pcie_ep_priv *priv; @@ -90,7 +90,13 @@ static int imx_pcie_ep_probe(struct pci_dev *pdev, goto err_pci_unmap_mmio; } - np = of_find_compatible_node(NULL, NULL, "snps,dw-pcie"); + /* Use the first none-hard-wired port as ep */ + while ((np = of_find_node_by_type(np, "pci"))) { + if (of_property_read_u32(np, "hard-wired", &hard_wired)) { + hard_wired = 0; + break; + } + } if (of_property_read_u32(np, "cpu-base-addr", &cpu_base)) cpu_base = 0; |