Re: [maemo-leste] [PATCH] Nokia RX-51: Update documentation about flashing

Autor: Pali Rohár
Data:
A: Lokesh Vutla
CC: Ivaylo Dimitrov, Merlijn Wajer, maemo-leste, u-boot
Assumpte: Re: [maemo-leste] [PATCH] Nokia RX-51: Update documentation about flashing

On Monday 19 July 2021 11:08:08 Lokesh Vutla wrote:
> Hi,
>
> On 18/06/21 6:59 pm, Pali Rohár wrote:
> > This change contains update for doc/README.nokia_rx51 documentation file
> > with information how to load U-Boot image to device RAM without need to
> > flash it and also how to flash it into OneNAND via 0xFFFF flasher.
> >
> > Signed-off-by: Pali Rohár <pali@???>
>
> Can you please convert this file to rST ?

Hello! It is already done, rst patch is already waiting...
http://patchwork.ozlabs.org/project/uboot/patch/20210721212507.27145-1-pali@kernel.org/

> Thanks and regards,
> Lokesh
>
> > ---
> > doc/README.nokia_rx51 | 45 +++++++++++++++++++++++++++++++++++++++++++
> > 1 file changed, 45 insertions(+)
> >
> > diff --git a/doc/README.nokia_rx51 b/doc/README.nokia_rx51
> > index 1be077514f03..e739b02088ea 100644
> > --- a/doc/README.nokia_rx51
> > +++ b/doc/README.nokia_rx51
> > @@ -22,6 +22,51 @@ following repository:
> >
> > https://github.com/pali/u-boot-maemo

> >
> > +To generate combined.bin image from u-boot.bin and kernel.bin (either uImage
> > +or zImage) use:
> > +
> > + sh u-boot-gen-combined u-boot.bin kernel.bin combined.bin
> > +
> > +Original Maemo Fremantle PR1.3 zImage kernel binary is available at:
> > +
> > + http://repository.maemo.org/pool/maemo5.0/free/k/kernel/kernel_2.6.28-20103103+0m5_armel.deb
> > +
> > +To unpack it (from DEB/AR, TAR and FIASCO) call commands:
> > +
> > + ar x kernel_2.6.28-20103103+0m5_armel.deb data.tar.gz
> > + tar -O -xf data.tar.gz ./boot/zImage-2.6.28-20103103+0m5.fiasco > kernel_2.6.28-20103103+0m5.fiasco
> > + 0xFFFF -M kernel_2.6.28-20103103+0m5.fiasco -u
> > +
> > +Flashed image must start with 2 kB "NOLO!img" header which contains size of
> > +the image. Header consist of bytes "NOLO!img\x02\x00\x00\x00\x00\x00\x00\x00"
> > +followed by 4 byte little endian size of the image and rest of the 2 kB header
> > +are just zero bytes.
> > +
> > +Nokia proprietary flasher and also open source 0xFFFF flasher automatically
> > +prepend required "NOLO!img" header and both applications expect that image
> > +does not contain "NOLO!img" header. Adding "NOLO!img" header is required
> > +only in case using "nandwrite" tool for flashing.
> > +
> > +Open source 0xFFFF flasher is available in following repository:
> > +
> > + https://github.com/pali/0xFFFF
> > +
> > +It is possible to load u-boot.bin via USB to N900 RAM and boot it without
> > +need to flashing it. Via 0xFFFF running at host PC it is done:
> > +
> > + 0xFFFF -m u-boot.bin -l -b
> > +
> > +0xFFFF support also flashing kernel image either via USB or directly on
> > +N900 device. Flashing u-boot/kernel/combined image is done as:
> > +
> > + 0xFFFF -m combined.bin -f
> > +
> > +Via 0xFFFF is possible to generate also standard flashable image in Nokia
> > +FIASCO format which contains metadata information like device identification
> > +(RX-51) and version string (v2021.04):
> > +
> > + 0xFFFF -m RX-51:v2021.04:kernel:u-boot.bin -g u-boot.fiasco
> > +
> > There is support for hardware watchdog. Hardware watchdog is started by
> > NOLO so u-boot must kick watchdog to prevent reboot device (but not very
> > often, max every 2 seconds). There is also support for framebuffer display
> >

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