[Urgent] LS1028 and new SPI device

[ikopetschke]

Hello,

i'm asking for very urgent help.
I have a custom carrier board with mpxls1028cr7 and wifi module WINC1500 connected via SPI.
I have already written on this topic here :

https://community.nxp.com/t5/QorIQ/Problem-with-custom-carrier-board-with-ls1028-mpxls1028cr7-SoM/m-... 

At the moment I really urgently need advice on the following:

1) Propojení IRQn z WiFi modulu na LS1028 
pin 13(IRQn, output ) ---> pin B11 ( I2C, SDA6 , input)

my DTS :

dspi2: spi@2120000 {
                        compatible = "fsl,ls1028a-dspi", "fsl,ls1021a-v1.0-dspi";
                        #address-cells = <1>;
                        #size-cells = <0>;
                        reg = <0x0 0x2120000 0x0 0x10000>;
                        interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
                        clock-names = "dspi";
                        clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
                                            QORIQ_CLK_PLL_DIV(2)>;
                        dmas = <&edma0 0 54>, <&edma0 0 2>;
                        dma-names = "tx", "rx";
                        spi-num-chipselects = <3>;
                        little-endian;
                        status = "disabled";
                };
gpio1: gpio@2300000 {
                        compatible = "fsl,ls1028a-gpio","fsl,qoriq-gpio";
                        reg = <0x0 0x2300000 0x0 0x10000>;
                        interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupt-cells = <2>;
                        little-endian;
                };

                gpio2: gpio@2310000 {
                        compatible = "fsl,ls1028a-gpio","fsl,qoriq-gpio";
                        reg = <0x0 0x2310000 0x0 0x10000>;
                        interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupt-cells = <2>;
                        little-endian;
                };

                gpio3: gpio@2320000 {
                        compatible = "fsl,ls1028a-gpio","fsl,qoriq-gpio";
                        reg = <0x0 0x2320000 0x0 0x10000>;
                        interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupt-cells = <2>;
                        little-endian;
                };
&gpio1 {
    status = "okay";
    little-endian;
};

&gpio2 {
    status = "okay";
    little-endian;
};

&gpio3 {
    status = "okay";
};

&i2c7 {
status = "okay";
};
&i2c5 {
status = "okay";
};
....
&dspi2 {
    status = "okay";
    gpios = <&gpio3 0 0>,  <&gpio1 0 0>;
    cs-gpios = <&gpio3 0 0>,  <&gpio1 0 0>;
    wilc_spi:wilc_spi@0 {
        compatible = "microchip,wilc1000","microchip,wilc3000";
        spi-max-frequency = <20000000>;
        reg = <0>;
        interrupt-parent = <&gpio1>;
        interrupts =  <22 IRQ_TYPE_LEVEL_HIGH>;
        reset-gpios =  <&gpio1 23 GPIO_ACTIVE_LOW>; 
        chip_en-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>, <&gpio1 0 GPIO_ACTIVE_HIGH>;
        status = "okay";
    };
};

Can I ask to check or correct the device tree ? I think I don't have the interrupts correctly, but I don't know what IRQ number to choose.

2) Please ask for any necessary modifications to RCW ( maybe IIC6_PMUX ?)

Thank you for any answer.

Igor

[SebastianG]

Hello @ikopetschke,

You can modify (set) the RCW bit[386-384] to 0b010 which means set the I2C7/8 pin to GPIO which is used by WIFI module as interrupt pin.

RCWSR13- bit[386-384] SDHC2_DAT74 _PMUX SDHC2_DAT[7:4] Pin Configuration This field configures functionality of SDHC2_DAT[7:4] pin.
0b000	SDHC2
0b001	GPIO
0b010	I2C7, I2C8
0b011	{SDHC2_DAT[7], SDHC2_DAT[6], SDHC2_DAT[5], SDHC2_DAT[4]} = { LPUART4_SOUT, LPUART4_SIN, LPUART4_CTS_B, LPUART4_RTS_B}
0b100	{SDHC2_DAT[7], SDHC2_DAT[6], SDHC2_DAT[5], SDHC2_DAT[4]} = { FTM4_CH0, FTM4_EXTCLK, FTM4_CH2, FTM4_CH1}
0b101	Reserved
0b110	XSPI1_B
0b111	Reserved

2. The interrupt number should be 68.

[SebastianG]

Hello @ikopetschke,

I would like to inform you that I'm working on your question, I will let you know as soon as I have an update.

Thank you so much for your patience

Regards,

Sebastian