From: Lars Povlsen lars.povlsen@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@microsemi.com --- arch/mips/dts/luton_pcb090.dts | 23 +++++++++++++++++++++++ arch/mips/dts/luton_pcb091.dts | 26 ++++++++++++++++++++++++++ arch/mips/dts/mscc,luton.dtsi | 23 +++++++++++++++++++++++ 3 files changed, 72 insertions(+)
diff --git a/arch/mips/dts/luton_pcb090.dts b/arch/mips/dts/luton_pcb090.dts index a3f8926ad9..15fdb2a1cb 100644 --- a/arch/mips/dts/luton_pcb090.dts +++ b/arch/mips/dts/luton_pcb090.dts @@ -18,6 +18,29 @@ 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>; // 32*<sgpio-bitcount> + sgpio-ports = <0xFFFFFFFF>; + sgpio-bitcount = <3>; };
&uart0 { diff --git a/arch/mips/dts/luton_pcb091.dts b/arch/mips/dts/luton_pcb091.dts index 74f9274c21..a94e888f98 100644 --- a/arch/mips/dts/luton_pcb091.dts +++ b/arch/mips/dts/luton_pcb091.dts @@ -18,6 +18,32 @@ 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"; };
&uart0 { diff --git a/arch/mips/dts/mscc,luton.dtsi b/arch/mips/dts/mscc,luton.dtsi index 6a4ad2a5be..d2b6843a7a 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 +62,29 @@ #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@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>; /* 32*<sgpio-bitcount> */ + mscc,sgpio-ports = <0xFFF000FF>; + mscc,sgpio-frequency = <12500000>; + mscc,sgpio-bitcount = <2>; };
gpio_spi_bitbang: gpio@10000064 {