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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: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2014-01-29 07:42:46 +04:00
parent bda8932d23
commit cdc9af7ccf
2 changed files with 11 additions and 6 deletions
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11
arch/xtensa/boot/dts/xtfpga.dtsi
View File

@ -35,6 +35,13 @@
interrupt-controller;
};
clocks {
osc: main-oscillator {
#clock-cells = <0>;
compatible = "fixed-clock";
};
};
serial0: serial@fd050020 {
device_type = "serial";
compatible = "ns16550a";
@ -42,9 +49,7 @@
reg = <0xfd050020 0x20>;
reg-shift = <2>;
interrupts = <0 1>; /* external irq 0 */
/* Filled in by platform_setup from FPGA register
* clock-frequency = <100000000>;
*/
clocks = <&osc>;
};
enet0: ethoc@fd030000 {

6
arch/xtensa/platforms/xtfpga/setup.c
View File

@ -135,11 +135,11 @@ static void __init update_local_mac(struct device_node *node)
static int __init machine_setup(void)
{
struct device_node *serial;
struct device_node *clock;
struct device_node *eth = NULL;
for_each_compatible_node(serial, NULL, "ns16550a")
update_clock_frequency(serial);
for_each_node_by_name(clock, "main-oscillator")
update_clock_frequency(clock);
if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))
update_local_mac(eth);