Hi Sebastian, For testing, I had manually added the device tree blob address into the a1 register.
On Fri, Apr 30, 2021 at 6:52 PM Sebastian Huber < sebastian.hu...@embedded-brains.de> wrote: > On 29/04/2021 20:53, Sebastian Huber wrote: > > > On 29/04/2021 20:18, Hesham Almatary wrote: > > > >>>> I would place the device tree in a noinit section. > >>>> > >>> That is probably a better solution. > >>> > >>> It should also be documented in this start.S file what are the > >>> assumptions about parameters coming from the bootloader since it is > >>> not obvious. > >> +1 > > > > The recent GCC have an attribute for this: > > > > https://devel.rtems.org/ticket/3866 > > > > We just need support for this in linkcmds.base and an RTEMS_NOINIT in > > basedefs.h. > > The noinit attributes is a bit broken in GCC: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100357 Can we create one section in the linker script and rtems can use it for copying the device tree blob? > > -- > embedded brains GmbH > Herr Sebastian HUBER > Dornierstr. 4 > 82178 Puchheim > Germany > email: sebastian.hu...@embedded-brains.de > phone: +49-89-18 94 741 - 16 > fax: +49-89-18 94 741 - 08 > > Registergericht: Amtsgericht München > Registernummer: HRB 157899 > Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler > Unsere Datenschutzerklärung finden Sie hier: > https://embedded-brains.de/datenschutzerklaerung/ > >
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