[PATCH 1/3] imx8mn: evk: add README

[Peng Fan]

> Subject: Re: [PATCH 1/3] imx8mn: evk: add README
> 
> Hi Peng,
> 
> On Mon, Jan 6, 2020 at 5:04 AM Peng Fan <peng.fan at nxp.com> wrote:
> 
> > +Quick Start
> > +===========
> > +- Build the ARM Trusted firmware binary
> > +- Get ddr firmware
> 
> I prefer you write "Get firmware-imx package" instead because this is the real
> package name and it contains not only DDR related firmware.

ok

> 
> As per the "Rev. L4.19.35_1.1.0, 11/2019" i.MX Linux® Release Notes :
> "i.MX Firmware including firmware for VPU, DDR, EPDC, HDMI, and SDMA.
> 
> > +- Build U-Boot
> > +- Boot
> > +
> > +Get and Build the ARM Trusted firmware
> > +======================================
> > +Note: srctree is U-Boot source directory Get ATF from:
> > +https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsou
> >
> +rce.codeaurora.org%2Fexternal%2Fimx%2Fimx-atf&data=02%7C01%7
> Cpeng
> >
> +.fan%40nxp.com%7Cb158fd8eecfc440c535508d79294d004%7C686ea1d3bc
> 2b4c6fa
> >
> +92cd99c5c301635%7C0%7C0%7C637139040145992909&sdata=zOdKC
> osuJxA0ax
> > +dlBXf4Fki8bCJLUoCvgH6kEoJuQck%3D&reserved=0
> > +branch: imx_4.19.35_1.1.0
> 
> Here you use the ATF from imx_4.19.35_1.1.0.
> 
> > +$ make PLAT=imx8mn bl31
> > +$ cp build/imx8mn/release/bl31.bin $(srctree)
> > +
> > +Get the ddr firmware
> > +=============================
> > +$ wget
> >
> +https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww
> >
> +.nxp.com%2Flgfiles%2FNMG%2FMAD%2FYOCTO%2Ffirmware-imx-8.0.bin&
> amp;dat
> >
> +a=02%7C01%7Cpeng.fan%40nxp.com%7Cb158fd8eecfc440c535508d79294
> d004%7C6
> >
> +86ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637139040145992909
> &sdat
> >
> +a=CkOxUFwFp1P8vDhAjzG1vmUitgbE%2FscmsPCQ8m9R1x8%3D&rese
> rved=0
> 
> but here you use the firmware-imx-8.0 version.
> 
> According to the "Rev. L4.19.35_1.1.0, 11/2019" i.MX Linux® Release Notes
> the firmware-imx version in this release is "firmware-imx-8.5.bin" instead.
> 
> Shouldn't we use all the software components from the same NXP BSP
> release to avoid potential mismatch?

There is no change to DDR firmware during these release.
I could change to 8.5.

Regards,
Peng.

> 
> Please clarfify.
> 
> Thanks