@@ -56,6 +56,7 @@
#define PCIE_MASK_ENABLE_INTS 0x0f000000
#define PCIE_CTRL_OFF 0x1a00
#define PCIE_CTRL_X1_MODE 0x0001
+#define PCIE_CTRL_RC_MODE BIT(1)
#define PCIE_STAT_OFF 0x1a04
#define PCIE_STAT_BUS 0xff00
#define PCIE_STAT_DEV 0x1f0000
@@ -224,7 +225,12 @@ static void mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
static void mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
{
- u32 cmd, mask;
+ u32 ctrl, cmd, mask;
+
+ /* Setup PCIe controller to Root Complex mode. */
+ ctrl = mvebu_readl(port, PCIE_CTRL_OFF);
+ ctrl |= PCIE_CTRL_RC_MODE;
+ mvebu_writel(port, ctrl, PCIE_CTRL_OFF);
/* Disable Root Bridge I/O space, memory space and bus mastering. */
cmd = mvebu_readl(port, PCIE_CMD_OFF);
This driver operates only in Root Complex mode, so ensure that hardware is properly configured in Root Complex mode. Signed-off-by: Pali Rohár <pali@kernel.org> Cc: stable@vger.kernel.org --- drivers/pci/controller/pci-mvebu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)