pci: pci_mvebu: Setup PCI controller to Root Complex mode
Root Complex should be the default mode, let's set it explicitly.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c
index 4c7fd8d..a327a83 100644
--- a/drivers/pci/pci_mvebu.c
+++ b/drivers/pci/pci_mvebu.c
@@ -62,6 +62,7 @@
#define PCIE_MASK_ENABLE_INTS (0xf << 24)
#define PCIE_CTRL_OFF 0x1a00
#define PCIE_CTRL_X1_MODE BIT(0)
+#define PCIE_CTRL_RC_MODE BIT(1)
#define PCIE_STAT_OFF 0x1a04
#define PCIE_STAT_BUS (0xff << 8)
#define PCIE_STAT_DEV (0x1f << 16)
@@ -373,6 +374,11 @@
struct pci_controller *hose = dev_get_uclass_priv(ctlr);
u32 reg;
+ /* Setup PCIe controller to Root Complex mode */
+ reg = readl(pcie->base + PCIE_CTRL_OFF);
+ reg |= PCIE_CTRL_RC_MODE;
+ writel(reg, pcie->base + PCIE_CTRL_OFF);
+
/*
* Change Class Code of PCI Bridge device to PCI Bridge (0x600400)
* because default value is Memory controller (0x508000) which