[U-Boot] [PATCH v3 3/6] mips: luton: DT: Enable use of serial gpio
Lars Povlsen
lars.povlsen at microchip.com
Wed Jan 2 08:52:23 UTC 2019
From: Lars Povlsen <lars.povlsen at microsemi.com>
This enables the use of the MSCC serial GPIO driver, and add gpio-leds
nodes to the 'luton' pcb090 and pcb091 DT.
Signed-off-by: Lars Povlsen <lars.povlsen at microsemi.com>
---
arch/mips/dts/luton_pcb090.dts | 21 +++++++++++++++++++++
arch/mips/dts/luton_pcb091.dts | 27 +++++++++++++++++++++++++++
arch/mips/dts/mscc,luton.dtsi | 20 ++++++++++++++++++++
3 files changed, 68 insertions(+)
diff --git a/arch/mips/dts/luton_pcb090.dts b/arch/mips/dts/luton_pcb090.dts
index a3f8926ad9..951d8da1be 100644
--- a/arch/mips/dts/luton_pcb090.dts
+++ b/arch/mips/dts/luton_pcb090.dts
@@ -18,6 +18,27 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ gpio-leds {
+ compatible = "gpio-leds";
+
+ status_green {
+ label = "pcb090:green:status";
+ gpios = <&sgpio 64 GPIO_ACTIVE_HIGH>; /* p0.2 */
+ default-state = "on";
+ };
+
+ status_red {
+ label = "pcb090:red:status";
+ gpios = <&sgpio 65 GPIO_ACTIVE_HIGH>; /* p1.2 */
+ default-state = "off";
+ };
+ };
+};
+
+&sgpio {
+ status = "okay";
+ gpio-ranges = <&sgpio 0 0 96>;
};
&uart0 {
diff --git a/arch/mips/dts/luton_pcb091.dts b/arch/mips/dts/luton_pcb091.dts
index 74f9274c21..bf638b2bc7 100644
--- a/arch/mips/dts/luton_pcb091.dts
+++ b/arch/mips/dts/luton_pcb091.dts
@@ -18,6 +18,33 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ gpio-leds {
+ compatible = "gpio-leds";
+
+ top_dimmer {
+ label = "pcb091:top:dimmer";
+ gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
+ default-state = "on";
+ };
+
+ status_green {
+ label = "pcb091:green:status";
+ gpios = <&sgpio 26 GPIO_ACTIVE_HIGH>; /* p26.0 */
+ default-state = "on";
+ };
+
+ status_red {
+ label = "pcb091:red:status";
+ gpios = <&sgpio 58 GPIO_ACTIVE_HIGH>; /* p26.1 */
+ default-state = "off";
+ };
+ };
+};
+
+&sgpio {
+ status = "okay";
+ mscc,sgpio-ports = <0xFFF000FF>;
};
&uart0 {
diff --git a/arch/mips/dts/mscc,luton.dtsi b/arch/mips/dts/mscc,luton.dtsi
index 6a4ad2a5be..87e27c6de5 100644
--- a/arch/mips/dts/mscc,luton.dtsi
+++ b/arch/mips/dts/mscc,luton.dtsi
@@ -25,6 +25,11 @@
serial0 = &uart0;
};
+ sys_clk: sys-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <250000000>;
+ };
ahb_clk: ahb-clk {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -57,11 +62,26 @@
#gpio-cells = <2>;
gpio-ranges = <&gpio 0 0 32>;
+ sgpio_pins: sgpio-pins {
+ pins = "GPIO_0", "GPIO_1", "GPIO_2", "GPIO_3";
+ function = "sio";
+ };
uart_pins: uart-pins {
pins = "GPIO_30", "GPIO_31";
function = "uart";
};
+ };
+ sgpio: gpio at 70130 {
+ compatible = "mscc,luton-sgpio";
+ status = "disabled";
+ clocks = <&sys_clk>;
+ pinctrl-0 = <&sgpio_pins>;
+ pinctrl-names = "default";
+ reg = <0x0070130 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&sgpio 0 0 64>;
};
gpio_spi_bitbang: gpio at 10000064 {
--
2.19.2
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