ARM: imx6q: clock and Kconfig update for PCIe support

Update imx6q clock initialization and Kconfig for PCIe support.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index e8e5bad82b30..07bc0d8b573f 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -623,6 +623,10 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
         if (ret)
                 pr_warn("failed to set up CLKO: %d\n", ret);
 
+        /* All existing boards with PCIe use LVDS1 */
+        if (IS_ENABLED(CONFIG_PCI_IMX6))
+                clk_set_parent(clk[lvds1_sel], clk[sata_ref]);
+
         /* Set initial power mode */
         imx6q_set_lpm(WAIT_CLOCKED);