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mips: ocelot: DT: Enable use of serial gpio

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This enables the use of the MSCC serial GPIO driver on the MSCC
VCoreIII 'ocelot' SOC, and add gpio-leds nodes to the pcb123 and
pcb120 DT.

Signed-off-by: Lars Povlsen <lars.povlsen@microsemi.com>
This commit is contained in:
Lars Povlsen 2019-01-02 09:52:25 +01:00 committed by Daniel Schwierzeck
parent 711f2dc08d
commit 26ad3c43a7
3 changed files with 124 additions and 0 deletions
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23
arch/mips/dts/mscc,ocelot.dtsi
View file

@ -37,6 +37,12 @@
clock-frequency = <500000000>;
};
sys_clk: sys-clk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <250000000>;
};
ahb_clk: ahb-clk {
compatible = "fixed-clock";
#clock-cells = <0>;
@ -118,6 +124,11 @@
#gpio-cells = <2>;
gpio-ranges = <&gpio 0 0 22>;
sgpio_pins: sgpio-pins {
pins = "GPIO_0", "GPIO_1", "GPIO_2", "GPIO_3";
function = "sg0";
};
uart_pins: uart-pins {
pins = "GPIO_6", "GPIO_7";
function = "uart";
@ -148,5 +159,17 @@
function = "si";
};
};
sgpio: gpio@10700f8 {
compatible = "mscc,ocelot-sgpio";
status = "disabled";
clocks = <&sys_clk>;
pinctrl-0 = <&sgpio_pins>;
pinctrl-names = "default";
reg = <0x10700f8 0x100>;
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&sgpio 0 0 64>;
};
};
};

76
arch/mips/dts/ocelot_pcb120.dts
View file

@ -9,4 +9,80 @@
/ {
model = "Ocelot PCB120 Reference Board";
compatible = "mscc,ocelot-pcb120", "mscc,ocelot";
chosen {
stdout-path = "serial0:115200n8";
};
gpio-leds {
compatible = "gpio-leds";
poe_green {
label = "pcb120:green:poe";
gpios = <&sgpio 44 1>; /* p12.1 */
default-state = "off";
};
poe_red {
label = "pcb120:red:poe";
gpios = <&sgpio 12 1>; /* p12.0 */
default-state = "off";
};
alarm_green {
label = "pcb120:green:alarm";
gpios = <&sgpio 45 1>; /* p13.1 */
default-state = "off";
};
alarm_red {
label = "pcb120:red:alarm";
gpios = <&sgpio 13 1>; /* p13.0 */
default-state = "off";
};
dc_a_green {
label = "pcb120:green:dc_a";
gpios = <&sgpio 46 1>; /* p14.1 */
default-state = "off";
};
dc_a_red {
label = "pcb120:red:dc_a";
gpios = <&sgpio 14 1>; /* p14.0 */
default-state = "off";
};
dc_b_green {
label = "pcb120:green:dc_b";
gpios = <&sgpio 47 1>; /* p15.1 */
default-state = "off";
};
dc_b_red {
label = "pcb120:red:dc_b";
gpios = <&sgpio 15 1>; /* p15.0 */
default-state = "off";
};
status_green {
label = "pcb120:green:status";
gpios = <&sgpio 48 1>; /* p16.1 */
default-state = "on";
};
status_red {
label = "pcb120:red:alarm";
gpios = <&sgpio 16 1>; /* p16.0 */
default-state = "off";
};
};
};
&sgpio {
status = "okay";
mscc,sgpio-ports = <0x000FFFFF>;
};

25
arch/mips/dts/ocelot_pcb123.dts
View file

@ -9,4 +9,29 @@
/ {
model = "Ocelot PCB123 Reference Board";
compatible = "mscc,ocelot-pcb123", "mscc,ocelot";
chosen {
stdout-path = "serial0:115200n8";
};
gpio-leds {
compatible = "gpio-leds";
status_green {
label = "pcb123:green:status";
gpios = <&sgpio 43 1>; /* p11.1 */
default-state = "on";
};
status_red {
label = "pcb123:red:status";
gpios = <&sgpio 11 1>; /* p11.0 */
default-state = "off";
};
};
};
&sgpio {
status = "okay";
mscc,sgpio-ports = <0x00FFFFFF>;
};