src/patches/kernel/wandboard/imx/0018-ARM-imx6q-clock-and-Kconfig-update-for-PCIe-support.patch

   1 From 4f6723e8ff497e35c8f2fb20886fccc533c58cdb Mon Sep 17 00:00:00 2001
   2 From: Sean Cross <xobs@kosagi.com>
   3 Date: Thu, 26 Sep 2013 10:45:35 +0800
   4 Subject: [PATCH] ARM: imx6q: clock and Kconfig update for PCIe support
   5
   6 Update imx6q clock initialization and Kconfig for PCIe support.
   7
   8 Signed-off-by: Sean Cross <xobs@kosagi.com>
   9 Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
  10 ---
  11  arch/arm/mach-imx/Kconfig     | 2 ++
  12  arch/arm/mach-imx/clk-imx6q.c | 4 ++++
  13  2 files changed, 6 insertions(+)
  14
  15 --- a/arch/arm/mach-imx/Kconfig
  16 +++ b/arch/arm/mach-imx/Kconfig
  17 @@ -806,6 +806,8 @@ config SOC_IMX6Q
  18         select HAVE_IMX_SRC
  19         select HAVE_SMP
  20         select MFD_SYSCON
  21 +       select MIGHT_HAVE_PCI
  22 +       select PCI_DOMAINS if PCI
  23         select PINCTRL
  24         select PINCTRL_IMX6Q
  25         select PL310_ERRATA_588369 if CACHE_PL310
  26 --- a/arch/arm/mach-imx/clk-imx6q.c
  27 +++ b/arch/arm/mach-imx/clk-imx6q.c
  28 @@ -586,6 +586,10 @@ int __init mx6q_clocks_init(void)
  29                 clk_prepare_enable(clk[usbphy2_gate]);
  30         }
  31
  32 +       /* All existing boards with PCIe use LVDS1 */
  33 +       if (IS_ENABLED(CONFIG_PCI_IMX6))
  34 +               clk_set_parent(clk[lvds1_sel], clk[sata_ref]);
  35 +
  36         /* Set initial power mode */
  37         imx6q_set_lpm(WAIT_CLOCKED);
  38