Re: [PATCH 1/3] ARM: i.MX: boot: correctly handle SRC_SBMR1 override via SRC_GPR9

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On Fri, May 08, 2020 at 08:41:41AM +0200, Ahmad Fatoum wrote:
> Hello,
> 
> On 4/27/20 10:28 AM, Ahmad Fatoum wrote:
> > Hello,
> > 
> > On 4/27/20 10:07 AM, Sascha Hauer wrote:
> >> On Mon, Apr 27, 2020 at 09:13:49AM +0200, Ahmad Fatoum wrote:
> >>> `mw 0x20d8040 0x08000030; mw 0x20d8044 0x10000000; reset` issued on an
> >>> i.MX6Q forces boot from the ecspi1. This is because the BootROM reads
> >>> the boot mode out of SRC_GPR9 instead of SRC_SBMR1 whenever SRC_GPR10
> >>> has its 28th bit set.
> >>
> >> Is this documented somewhere? The reference Manual marks SRC_GPR9 and
> >> SRC_GPR10 as
> >>
> >> | This register is used by the ROM code and should not be used
> >> | by application software.
> 
> Seems it's indeed documented in the IMX6ULRM (Rev.2 03/27).
> See Table 8-6. Persistent bits.
> 
> Can the patches be applied or do you need me to change something?

I just merged them

Sascha


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