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Commit cdc9af7c authored by Max Filippov's avatar Max Filippov
Browse files

xtensa: xtfpga: use common clock framework 



With this change the board needs to set up single clock object, users of
this clock will get correct frequency automatically.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent bda8932d

arch/xtensa/boot/dts/xtfpga.dtsi

+8 −3
Original line number Original line Diff line number Diff line
@@ -35,6 +35,13 @@ 
		interrupt-controller;

		interrupt-controller;

	};

	};





	clocks {

		osc: main-oscillator {

			#clock-cells = <0>;

			compatible = "fixed-clock";

		};

	};



	serial0: serial@fd050020 {

	serial0: serial@fd050020 {

		device_type = "serial";

		device_type = "serial";

		compatible = "ns16550a";

		compatible = "ns16550a";
@@ -42,9 +49,7 @@ 
		reg = <0xfd050020 0x20>;

		reg = <0xfd050020 0x20>;

		reg-shift = <2>;

		reg-shift = <2>;

		interrupts = <0 1>; /* external irq 0 */

		interrupts = <0 1>; /* external irq 0 */

		/* Filled in by platform_setup from FPGA register

		clocks = <&osc>;

		 * clock-frequency = <100000000>;

		 */

	};

	};





	enet0: ethoc@fd030000 {

	enet0: ethoc@fd030000 {

arch/xtensa/platforms/xtfpga/setup.c

+3 −3
Original line number Original line Diff line number Diff line
@@ -135,11 +135,11 @@ static void __init update_local_mac(struct device_node *node) 




static int __init machine_setup(void)

static int __init machine_setup(void)

{

{

	struct device_node *serial;

	struct device_node *clock;

	struct device_node *eth = NULL;

	struct device_node *eth = NULL;





	for_each_compatible_node(serial, NULL, "ns16550a")

	for_each_node_by_name(clock, "main-oscillator")

		update_clock_frequency(serial);

		update_clock_frequency(clock);





	if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))

	if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))

		update_local_mac(eth);

		update_local_mac(eth);