OpenWrt – Rev 4

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--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -442,6 +442,20 @@ static void clkdev_add_clkout(void)
        }
 }
 
+static void set_phy_clock_source(struct device_node *np_cgu)
+{
+       u32 phy_clk_src, ifcc;
+
+       if (!np_cgu)
+               return;
+
+       if (of_property_read_u32(np_cgu, "lantiq,phy-clk-src", &phy_clk_src))
+               return;
+
+       ifcc = ltq_cgu_r32(ifccr) & ~(0x1c);
+       ltq_cgu_w32(ifcc | (phy_clk_src << 2), ifccr);
+}
+
 /* bring up all register ranges that we need for basic system control */
 void __init ltq_soc_init(void)
 {
@@ -628,4 +642,6 @@ void __init ltq_soc_init(void)
        if (of_machine_is_compatible("lantiq,vr9"))
                xbar_fpi_burst_disable();
        usb_set_clock();
+
+       set_phy_clock_source(np_cgu);
 }