Re: [RFC PATCH 0/3] provide imx rproc driver

[Oleksij Rempel]

Hi Sanchayan,

On 19.06.2017 07:13, Sanchayan wrote:
> Hello Oleksij,
>
> On 17-06-14 22:48:52, Oleksij Rempel wrote:
> > Hallo all,
> >
> > this is RFC patchset to provide remoteproc functionality on
> > imx7d SoC.
> > Since current kernel do not have devicetrees for board which
> > I used for testing, this RFC patchset includes this too.
> >
> > For testing I used this simple counter written in ASM:
> > ======================================
> >         .syntax unified
> >         .text
> >         .thumb
> >         .int 0x10020000                 @ Initial SP value
> >         .int reset + 1
> >
> > reset:
> >
> >         mov     r0, #0x55
> >         ldr     r1, =(0x40)
> > 1:
> >         str     r0, [r1]
> >         add     r0, 1
> >         b       1b
> >
> >         /* Dummy data, required by remoteproc loader */
> >         /* Please FIXME, this part seem to be incorrect */
> >         .data
> >         .section .resource_table, "aw"
> >         .word   1, 0, 0, 0      /* struct resource_table base */
> >         .word   0               /* uint32_t offset[1] */
> > ============================================================
> > compiled with:
> > ${CROSS}as -o imx7m4.o imx7m4.S
> > ${CROSS}ld -Ttext=0x0 -o imx7m4.elf imx7m4.o
> > cp imx7m4.elf /srv/nfs/sid-armhf/lib/firmware/rproc-imx_rproc-fw
> >
> > Functionality was confirmed with current OpenOCD master.
> > OpenOCD cfg file can be found here:
> > https://github.com/olerem/openocd/blob/imx7-2017.06.14/tcl/target/imx7.cfg
> >
> > Comment and suggestions are welcome.
>
> Have you by chance also tried testing this with FreeRTOS code running on the
> M4 side?

no, currently my priority is to provide basic functionality with easy 
understandable target code and dependencies.