[PATCHv6 07/28] PCI: mobiveil: Fix the Class Code field

[Hou Zhiqiang]

Fix up the Class Code field in PCI configuration space and set it to
PCI_CLASS_BRIDGE_PCI.

Move the Class Code fixup to function mobiveil_host_init() where
it belongs.

Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
Signed-off-by: Hou Zhiqiang <zhiqiang....@nxp.com>
Reviewed-by: Minghuan Lian <minghuan.l...@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahma...@mobiveil.co.in>
---
V6:
 - Rebased the patch, no functional change.

 drivers/pci/controller/pcie-mobiveil.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/pcie-mobiveil.c 
b/drivers/pci/controller/pcie-mobiveil.c
index 8272183..9e08061 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -626,6 +626,12 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie)
                }
        }
 
+       /* fixup for PCIe class register */
+       value = csr_readl(pcie, PAB_INTP_AXI_PIO_CLASS);
+       value &= 0xff;
+       value |= (PCI_CLASS_BRIDGE_PCI << 16);
+       csr_writel(pcie, value, PAB_INTP_AXI_PIO_CLASS);
+
        /* setup MSI hardware registers */
        mobiveil_pcie_enable_msi(pcie);
 
@@ -866,9 +872,6 @@ static int mobiveil_pcie_probe(struct platform_device *pdev)
                goto error;
        }
 
-       /* fixup for PCIe class register */
-       csr_writel(pcie, 0x060402ab, PAB_INTP_AXI_PIO_CLASS);
-
        /* initialize the IRQ domains */
        ret = mobiveil_pcie_init_irq_domain(pcie);
        if (ret) {
-- 
1.7.1