lantiq: copy target to kernel 5.4

Duplicate kernel 4.19 config and patches for kernel 5.4.

Duplicate the devicetree source files as well, they need kernel 5.4
specific adjustments.

Signed-off-by: Mathias Kresin <dev@kresin.me>

1 files changed, 30 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-5.4/0301-xrx200-add-gphy-clk-src-device-tree-binding.patch b/target/linux/lantiq/patches-5.4/0301-xrx200-add-gphy-clk-src-device-tree-binding.patch
new file mode 100644
index 0000000000..b98abe8b4b
--- /dev/null
+++ b/target/linux/lantiq/patches-5.4/0301-xrx200-add-gphy-clk-src-device-tree-binding.patch
@@ -0,0 +1,30 @@
+--- a/arch/mips/lantiq/xway/sysctrl.c
++++ b/arch/mips/lantiq/xway/sysctrl.c
+@@ -424,6 +424,20 @@ 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)
+ {
+@@ -587,4 +601,6 @@ void __init ltq_soc_init(void)
+ 		clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
+ 	}
+ 	usb_set_clock();
++
++	set_phy_clock_source(np_cgu);
+ }