SPI5 in user spece with STM32MP135F-DK, MB1635B. Kernel Panic

[MarioPieschel]

I try to activate the SPI5 in user space. It compieles correctly.

I use the repository:

repo init -u https://github.com/STMicroelectronics/oe-manifest.git -b refs/tags/openstlinux-6.1-yocto-mickledore-mp1-v23.06.21

repo sync

DISTRO=openstlinux-weston MACHINE=stm32mp13-disco IMAGE="st-image-weston" source layers/meta-st/scripts/envsetup.sh

bitbake st-image-weston

after editting the device tree:

bitbake virtual/kernel -c compile -f && bitbake virtual/kernel

But I see not the spidev in /dev/...

&spi5 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&spi5_pins_a>;
pinctrl-1 = <&spi5_sleep_pins_a>;
cs-gpios = <&gpioh 11 0>; /* PH11 */
status = "okay";

 spidev@0 {
 status = "okay";
 compatible = "rohm,dh2228fv";
 /*
 * spidev uses a compatible string 'rohm,fs2228fv' to have the
 * driver create an spi device node. This is just an example,
 * there is not a real device connected on the SPI bus.
 */
 reg = <0>;
 spi-max-frequency = <30000000>;
 };

};

Is this correct?

Please tell me not, that it goes on the STM32MP157, I know this!

---------------------------------------------------------------------------------------------------------------------------------------------------------

That nothing was happend with the SPI5, was that the devicetree blob not was in the sd-card image.

Now the devicetree is in my sd-card image and than I will get a kernel panic!!!

I gess the sorce code of the optee-os is buggy.

Starting kernel ...

E/TC:0 Panic 'Watchdog' at /usr/src/debug/optee-os-stm32mp/3.19.0-stm32mp-r1-r0/core/drivers/stm32_iwdg.c:198 <stm32_iwdg_it_handler>
E/TC:0 TEE load address @ 0xde000000
E/TC:0 Call stack:
E/TC:0 0xde0030f9
E/TC:0 0xde019f87
E/TC:0 0xde00c873
E/TC:0 0xde01966d
E/TC:0 0xde039601
E/TC:0 0xde000340

 

 

[Olivier GALLIEN]

Hi @MarioPieschel ,

How did you generate the dts ? CubeMX ? 

Can you share the node related do SPI5 pinmux ? 

Thanks

Olivier 

[MarioPieschel]

Hi Oliver,

The problem is, that I have to inset th folowing code in the devicetree of the op-tee. But I cannot find any source code of that. Whre is the sorce code of the op-tee and how to compile it?

I work with the Distribution Package! (bitbake)

Must be in the devicetree of the op-tee:

&etzpc{
...
DECPROT(STM32MP1_ETZPC_SPI5_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
...
};
&rcc{
...
CLK_SPI5_PCLK6
};

I inserted/changed this the in the kernel devicetree (stm32mp135f-dk.dts, line 514):

&spi5 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&spi5_pins_a>;
pinctrl-1 = <&spi5_sleep_pins_a>;
cs-gpios = <&gpioh 11 0>; /* PH11 */
status = "okay";
spidev@0 {
status = "okay";
compatible = "rohm,dh2228fv";
reg = <0>;
spi-max-frequency = <30000000>;
};
};

Pinmux is in stm32mp13-pinctrl.dtsi, line 453.

[stack_shailesh]

Did you get any solution for that? Because I am also getting same issue. I just added my customized uImage and dtb file. But during it is stuck at watchdog.

[MarioPieschel]

yes, with the Distribution Package you have no chance to fix this.

You have to install the SDK an build a new trusted firmware.

It is not easy :O(

[stack_shailesh]

Actually I compiled and generated uImage and dtb according to my requirement, but I still get same issue, I know if I edit configuration using bitbake linux-stm32mp -c menuconfig it will not create issue. I think we are missing some important step during making uImage and dtb.