diff mbox series

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

Message ID 20190705095656.19191-8-Zhiqiang.Hou@nxp.com (mailing list archive)
State New, archived
Headers show
Series PCI: mobiveil: fixes for Mobiveil PCIe Host Bridge IP driver | expand

Commit Message

Z.Q. Hou July 5, 2019, 9:56 a.m. UTC 
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.Hou@nxp.com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@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 mbox series

Patch

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) {