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Using ecspi5 on i.MX6 SoloX

Question asked by DongHyun Kim on Jun 23, 2020
Latest reply on Jun 23, 2020 by igorpadykov

Hi,

 

I try to use ecspi5 on the i.MX6soloX board.

 

&flexcan1 {
    status = "disabled";
};

 

&flexcan2 {
    status = "disabled";
};

 

&qspi1 {
    status = "disabled";
};

 

&qspi2 {
    status = "disabled";
};

 

&ecspi5 {
#if 0
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_ecspi5_1>;
#endif

#if 0

    spi-slave;

#endif
    status = "okay";
};

 

&iomuxc {
    ecspi5 {
        pinctrl_ecspi5_1: ecspi5grp-1 {
            fsl,pins = <
                MX6SX_PAD_QSPI1A_SS1_B__ECSPI5_MISO 0x100b1????
                MX6SX_PAD_QSPI1A_DQS__ECSPI5_MOSI 0x100b1????
                MX6SX_PAD_QSPI1B_SS1_B__ECSPI5_SCLK 0x100b1????
                MX6SX_PAD_QSPI1B_DQS__ECSPI5_SS0 0x100b1????
            >;
        };
    };
};

 

1. question. spi devices are not retrieved on /dev. How do I create it?

root@imx6sxsabresd:~# ls -al /dev/spi*
ls: cannot access '/dev/spi*': No such file or directory
root@imx6sxsabresd:~# dmesg | grep spi
[ 1.054004] spi_imx 228c000.ecspi: dma setup error -19, use pio
[ 1.058943] spi_imx 228c000.ecspi: probed
root@imx6sxsabresd:~# ls -al /sys/bus/platform/drivers/spi_imx/228c000.ecspi
lrwxrwxrwx 1 root root 0 Jun 23 08:35 /sys/bus/platform/drivers/spi_imx/228c000.ecspi -> ../../../../devices/soc0/soc/2200000.aips-bus/228c000.ecspi
root@imx6sxsabresd:~# ls -al /sys/devices/soc0/soc/2200000.aips-bus/228c000.ecspi
total 0
drwxr-xr-x 4 root root 0 Jun 23 07:48 .
drwxr-xr-x 13 root root 0 Jun 23 07:48 ..
lrwxrwxrwx 1 root root 0 Jun 23 08:35 driver -> ../../../../../bus/platform/drivers/spi_imx
-rw-r--r-- 1 root root 4096 Jun 23 08:35 driver_override
-r--r--r-- 1 root root 4096 Jun 23 08:35 modalias
lrwxrwxrwx 1 root root 0 Jun 23 08:35 of_node -> ../../../../../firmware/devicetree/base/soc/aips-bus@02200000/ecspi@0228c000
drwxr-xr-x 2 root root 0 Jun 23 08:34 power
drwxr-xr-x 3 root root 0 Jun 23 07:48 spi_master
lrwxrwxrwx 1 root root 0 Jun 23 07:48 subsystem -> ../../../../../bus/platform
-rw-r--r-- 1 root root 4096 Jun 23 07:48 uevent
root@imx6sxsabresd:~#

 

2. question. What value should each pin set on iomuxc? (there is no xml for i.mx6sx in iomuxtool)

 

3. question. How do I change to slave mode? Is there anything else I need to add besides "spi-slave;"?

 

4. question. Can I get the *.mex file of MCIMX6S and MXIMX6SX sabred board for config tool?

 

Please answer.

Thanks.

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