Re: flash-kernel and dtbs

[Rainer Dorsch <ml@bokomoko.de>]

Hi Vagrant,

many thanks for you excellent suggestions, they helped me a lot.

Am Dienstag, 28. November 2017, 13:12:42 schrieb Vagrant Cascadian:
[...]
> 
> When the user installs them.  Install u-boot-imx and see
> /usr/share/doc/u-boot-imx/README.Debian* for instructions on how to
> install u-boot manually.

That worked, but I had to install it to /dev/mmcblk1 (not mmcblk0)

Now the correct machine model is deteced:

root@mohot:~# grep fdt /var/log/syslog
Nov 28 21:27:24 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
Cubox-i Dual/Quad
Nov 28 21:35:28 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
Cubox-i Dual/Quad
Nov 28 21:46:35 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
Cubox-i Dual/Quad
Nov 30 21:46:04 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
Cubox-i Dual/Quad
Nov 30 21:50:03 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
Cubox-i Dual/Quad
Nov 30 21:53:21 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
HummingBoard Dual/Quad
Nov 30 21:54:26 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
HummingBoard Dual/Quad
Nov 30 22:03:43 mohot kernel: [    0.000000] OF: fdt: Machine model: SolidRun 
HummingBoard Dual/Quad
root@mohot:~# 

root@mohot:~# cat /proc/device-tree/model
SolidRun HummingBoard Dual/Quadroot@mohot:~#
 

> If you have no memory of installing it explicitly, it was probably
> included as part using an old debian-installer image, such as the
> netboot SD card images:

I think I installed from netboot SD card image, I did not install it myself.

>  
> https://deb.debian.org/debian/dists/jessie/main/installer-armhf/current/ima
> ges/netboot/SD-card-images/
> 
> 
> For a newer installer image:
> 
>  
> https://deb.debian.org/debian/dists/stretch/main/installer-armhf/current/im
> ages/netboot/SD-card-images/

I could avoid reinstallation :-)


The dtb has 4 spi entries

                ecspi@02008000 {
                    #address-cells = <0x00000001>;
                    #size-cells = <0x00000000>;
                    compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
                    reg = <0x02008000 0x00004000>;
                    interrupts = <0x00000000 0x0000001f 0x00000004>;
                    clocks = <0x00000002 0x00000070 0x00000002 0x00000070>;
                    clock-names = "ipg", "per";
                    dmas = <0x0000000d 0x00000003 0x00000008 0x00000001 
0x0000000d 0x00000004 0x00000008 0x00000002>;
                    dma-names = "rx", "tx";
                    status = "disabled";
                };
                ecspi@0200c000 {
                    #address-cells = <0x00000001>;
                    #size-cells = <0x00000000>;
                    compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
                    reg = <0x0200c000 0x00004000>;
                    interrupts = <0x00000000 0x00000020 0x00000004>;
                    clocks = <0x00000002 0x00000071 0x00000002 0x00000071>;
                    clock-names = "ipg", "per";
                    dmas = <0x0000000d 0x00000005 0x00000008 0x00000001 
0x0000000d 0x00000006 0x00000008 0x00000002>;
                    dma-names = "rx", "tx";
                    status = "disabled";
                };
                ecspi@02010000 {
                    #address-cells = <0x00000001>;
                    #size-cells = <0x00000000>;
                    compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
                    reg = <0x02010000 0x00004000>;
                    interrupts = <0x00000000 0x00000021 0x00000004>;
                    clocks = <0x00000002 0x00000072 0x00000002 0x00000072>;
                    clock-names = "ipg", "per";
                    dmas = <0x0000000d 0x00000007 0x00000008 0x00000001 
0x0000000d 0x00000008 0x00000008 0x00000002>;
                    dma-names = "rx", "tx";
                    status = "disabled";
                };
                ecspi@02014000 {
                    #address-cells = <0x00000001>;
                    #size-cells = <0x00000000>;
                    compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
                    reg = <0x02014000 0x00004000>;
                    interrupts = <0x00000000 0x00000022 0x00000004>;
                    clocks = <0x00000002 0x00000073 0x00000002 0x00000073>;
                    clock-names = "ipg", "per";
                    dmas = <0x0000000d 0x00000009 0x00000008 0x00000001 
0x0000000d 0x0000000a 0x00000008 0x00000002>;
                    dma-names = "rx", "tx";
                    status = "disabled";
                };


Is that sufficient for enabling the spi interfaces on the 26 pin interface?

I do not see a /dev/spidev* even after loading spi_imx, which also does not 
produce any entry in syslog. Do you have any clue why the the spi devices do 
not show up?

Many thanks again
Rainer