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From 74b8031307c5d33d36742c26dd0921991bd5a255 Mon Sep 17 00:00:00 2001
From: Sean Cross <xobs@kosagi.com>
Date: Thu, 26 Sep 2013 10:45:35 +0800
Subject: [PATCH] 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>
---
arch/arm/mach-imx/Kconfig | 2 ++
arch/arm/mach-imx/clk-imx6q.c | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index e017915..270f786 100644
--- 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
--- 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);
--
1.8.4.1
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