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>

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index e017915..270f786 100644 (file)
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -802,6 +802,8 @@ config SOC_IMX6Q
        select HAVE_IMX_SRC
        select HAVE_SMP
        select MFD_SYSCON
+       select MIGHT_HAVE_PCI
+       select PCI_DOMAINS if PCI
        select PINCTRL
        select PINCTRL_IMX6Q
        select PL310_ERRATA_588369 if CACHE_PL310

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index e8e5bad..07bc0d8 100644 (file)
--- 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);