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BBB SPI 1 with WF200 WIFI NCP
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/* SPI1 | |
* D1 Output and D0 Input | |
Wkup : 1_17 : P9.23 | |
Resetn : 3_21 : P9.25 | |
Wirq : 3_19 : P9.27 | |
*/ | |
/dts-v1/; | |
/plugin/; | |
//#include <dt-bindings/board/am335x-bbw-bbb-base.h> | |
//#include <dt-bindings/pinctrl/am33xx.h> | |
/{ | |
compatible = "ti,beaglebone", "ti,beaglebone-black"; | |
/* identification */ | |
part-number = "BB-SPI1-WF200"; | |
version = "00A0"; | |
/* state the resources this cape uses */ | |
exclusive-use = | |
/* the pin header uses */ | |
"P9.31", /* spi1_sclk */ | |
"P9.29", /* spi1_d0 */ | |
"P9.30", /* spi1_d1 */ | |
"P9.28", /* spi1_cs0 */ | |
"P9.23", /* WF200 WKUP */ | |
"P9.25", /* WF200 RESETn */ | |
"P9.27", /* WF200 WiRQ */ | |
/* the hardware ip uses */ | |
"spi1"; /* Real SPI1 peripheral - Wifi */ | |
/* | |
* Free up the pins used by the cape from the pinmux helpers. | |
*/ | |
fragment@0 { | |
target = <&ocp>; | |
__overlay__ { | |
/* SPI 1 pins*/ | |
P9_28_pinmux { status = "disabled"; }; /* spi1_cs0 */ | |
P9_30_pinmux { status = "disabled"; }; /* spi1_d1 */ | |
P9_29_pinmux { status = "disabled"; }; /* spi1_d0 */ | |
P9_31_pinmux { status = "disabled"; }; /* spi1_sclk */ | |
P9_23_pinmux { status = "disabled"; }; /* WF200 WKUP */ | |
P9_25_pinmux { status = "disabled"; }; /* WF200 RESETn */ | |
P9_27_pinmux { status = "disabled"; }; /* WF200 WiRQ */ | |
}; | |
}; | |
fragment@1 { | |
target = <&am33xx_pinmux>; | |
__overlay__ { | |
wfx_spi1_pins: pinmux_wfx_spi1_pins { | |
pinctrl-single,pins = < | |
/*OFFSET CONFIG|MODE*/ | |
0x190 0x33 /* mcasp0_aclkx.spi1_sclk, INPUT_PULLUP | MODE3 */ | |
0x194 0x33 /* mcasp0_fsx.spi1_d0, INPUT_PULLUP | MODE3 */ | |
0x198 0x13 /* mcasp0_axr0.spi1_d1, OUTPUT_PULLUP | MODE3 */ | |
0x19c 0x13 /* mcasp0_ahclkr.spi1_cs0, OUTPUT_PULLUP | MODE3 */ | |
// 0x164 0x12 /* eCAP0_in_PWM0_out.spi1_cs1 OUTPUT_PULLUP | MODE2 */ | |
>; | |
}; | |
wfx_irq: pinmux_wfx_irq_pins { | |
pinctrl-single,pins = < | |
/*OFFSET CONFIG|MODE*/ | |
0x1a4 0x27 /* gpio3_19 : WiRQ, INPUT_PULLDWN | MODE3 */ | |
>; | |
}; | |
wfx_gpios: pinmux_wfx_gpios_pins { | |
pinctrl-single,pins = < | |
/*OFFSET CONFIG|MODE*/ | |
0x044 0x17 /* gpio1_17 : Wkup , OUTPUT_PULLUP | MODE3 */ | |
0x1ac 0x17 /* gpio3_21 : RESETn, OUTPUT_PULLUP | MODE3 */ | |
>; | |
}; | |
}; | |
}; | |
fragment@2 { /* real SPI port 1 */ | |
target = <&spi1>; | |
__overlay__ { | |
#address-cells = <1>; | |
#size-cells = <0>; | |
status = "okay"; | |
pinctrl-names = "default"; | |
pinctrl-0 = <&wfx_spi1_pins>; | |
wfx: spidev@0 { | |
spi-max-frequency = <48000000>; /* BBB max is 48MHz*/ | |
#address-cells = <1>; | |
#size-cells = <0>; | |
// "silabs,wfx-spi" is mandatory. | |
// Use "siliconlabs,wfx-wlan-spi" for compatibility with driver < 1.3 | |
// Append "spidev" to be able to also use spidev driver | |
compatible = "silabs,wfx-spi", "siliconlabs,wfx-wlan-spi", "linux,spidev"; | |
pinctrl-names = "default"; | |
pinctrl-0 = <&wfx_irq &wfx_gpios>; | |
/* out of kernel build gives a syntax error : needs include/dt-bindings/gpio/gpio.h*/ | |
/*interrupts-extended = <&gpio3 19 IRQ_TYPE_EDGE_RISING>;*/ | |
interrupts-extended = <&gpio3 19 1>; | |
wakeup-gpios = <&gpio1 17 0>; | |
/* out of kernel build gives a syntax error : needs include/dt-bindings/gpio/gpio.h*/ | |
/*wakeup-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;*/ | |
reset-gpios = <&gpio3 21 0>; | |
/* out of kernel build gives a syntax error : needs include/dt-bindings/gpio/gpio.h*/ | |
/*reset-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;*/ | |
// config-file = "wf200.pds"; // necessary for dtparam ( debug only ) | |
reg = <0>; | |
}; | |
}; | |
}; | |
}; |
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