recipes-kernel/linux/linux-karo-4.9.11/set-enet_ref_clk-to-50-mhz.patch

   1 diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
   2 index f45de65..3845ab3 100644
   3 --- a/drivers/clk/imx/clk-imx6q.c
   4 +++ b/drivers/clk/imx/clk-imx6q.c
   5 @@ -882,6 +882,20 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
   6         /*Set enet_ref clock to 125M to supply for RGMII tx_clk */
   7         clk_set_rate(clk[IMX6QDL_CLK_ENET_REF], 125000000);
   8
   9 +       np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-fec");
  10 +       if (np) {
  11 +               u32 clock_frequency;
  12 +               int ret;
  13 +
  14 +               ret = of_property_read_u32(np, "ref-clock", &clock_frequency);
  15 +               if (ret == 0) {
  16 +                       printk("fec ref-clock: %d\n", clock_frequency);
  17 +                       imx_clk_set_rate(clk[IMX6QDL_CLK_ENET_REF], clock_frequency);
  18 +               }
  19 +       }
  20 +       // This clock may be needed very early on
  21 +       imx_clk_prepare_enable(clk[IMX6QDL_CLK_ENET_REF]);
  22 +
  23  #ifdef CONFIG_MX6_VPU_352M
  24         /*
  25          * If VPU 352M is enabled, then PLL2_PDF2 need to be