[U-Boot] [PATCH] ARM: kirkwood: add spi0 alias for dreamplug

[Chris Packham]

On Thu, 28 Feb 2019 22:13 Leigh Brown, <leigh at solinno.co.uk> wrote:

> Hi Chris,
>
> I tested together with my own patch. It fixes the issue, thanks very
> much!
>

Great. Thanks again for the bug report.

Slightly related I've got a series of changes for USB on kirkwood. Would
you be in a position to take them for a spin?


> Tested-by: Leigh Brown <leigh at solinno.co.uk>
>
> Output:
>
> U-Boot 2019.04-rc2-00134-g783e66816d-dirty (Feb 28 2019 - 08:27:16
> +0000)
> Marvell-DreamPlug
>
> SoC:   Kirkwood 88F6281_A1
> DRAM:  512 MiB
> Loading Environment from SPI Flash... SF: Detected mx25l1606e with page
> size 256 Bytes, erase size 4 KiB, total 2 MiB
> OK
> In:    serial
> Out:   serial
> Err:   serial
> Net:   egiga0, egiga1
> 88E1116 Initialized on egiga0
> 88E1116 Initialized on egiga1
> IDE:   ide_preinit failed
> Hit any key to stop autoboot:  0
> starting USB...
> USB0:   USB EHCI 1.00
> scanning bus 0 for devices... 4 USB Device(s) found
>         scanning usb for storage devices... Device NOT ready
>     Request Sense returned 02 3A 00
> 1 Storage Device(s) found
> 1879928 bytes read in 130 ms (13.8 MiB/s)
> 9949 bytes read in 40 ms (242.2 KiB/s)
> 2746404 bytes read in 163 ms (16.1 MiB/s)
> ## Booting kernel from Legacy Image at 06000000 ...
>     Image Name:   uImage-4.19.7+
>     Created:      2018-12-06  14:10:50 UTC
>     Image Type:   ARM Linux Kernel Image (uncompressed)
>     Data Size:    1879864 Bytes = 1.8 MiB
>     Load Address: 00008000
>     Entry Point:  00008000
>     Verifying Checksum ... OK
> ## Loading init Ramdisk from Legacy Image at 06600000 ...
>     Image Name:   uInitrd-4.19.7+
>     Created:      2018-12-06  14:10:50 UTC
>     Image Type:   ARM Linux RAMDisk Image (uncompressed)
>     Data Size:    2746340 Bytes = 2.6 MiB
>     Load Address: 00000000
>     Entry Point:  00000000
>     Verifying Checksum ... OK
> ## Flattened Device Tree blob at 06400000
>     Booting using the fdt blob at 0x6400000
>     Loading Kernel Image ... OK
>     Loading Ramdisk to 0fd61000, end 0ffff7e4 ... OK
>     Loading Device Tree to 0fd5b000, end 0fd606dc ... OK
>
> Starting kernel ...
>
> On 2019-02-28 07:53, Chris Packham wrote:
> > The conversion to DM_SPI managed to break accessing the environment on
> > dreamplug. This is because the environment code relies on being to able
> > to select the SPI device based on the sequence number. Add an alias so
> > that the spi0 bus gets sequence number 0.
> >
> > Reported-by: Leigh Brown <leigh at solinno.co.uk>
> > Signed-off-by: Chris Packham <judge.packham at gmail.com>
> > ---
> > Leigh,
> >
> > Could you test this on your system for me. I'm only able to compile
> > test
> > this myself.
> >
> >  arch/arm/dts/kirkwood-dreamplug.dts | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/arch/arm/dts/kirkwood-dreamplug.dts
> > b/arch/arm/dts/kirkwood-dreamplug.dts
> > index a647a65c20a0..ccd74dd7fb33 100644
> > --- a/arch/arm/dts/kirkwood-dreamplug.dts
> > +++ b/arch/arm/dts/kirkwood-dreamplug.dts
> > @@ -18,6 +18,10 @@
> >               stdout-path = &uart0;
> >       };
> >
> > +     aliases {
> > +             spi0 = &spi0;
> > +     };
> > +
> >       ocp at f1000000 {
> >               pinctrl: pin-controller at 10000 {
> >                       pmx_led_bluetooth: pmx-led-bluetooth {
>
> Regards,
>
> Leigh.
>