[U-Boot] [RFC PATCH 0/3] ARM: imx: mx6: Add plugin support for SPL

Otavio Salvador otavio.salvador at ossystems.com.br
Fri Jan 27 16:25:44 CET 2017


On Fri, Jan 27, 2017 at 12:56 PM, Fabio Estevam <festevam at gmail.com> wrote:
> On Fri, Jan 20, 2017 at 3:40 PM, Tim Harvey <tharvey at gateworks.com> wrote:
>> The SRC_SBMR register reflects the BOOT MODE pins of the chip
>> (strapping) but the reference manual defines SRC_GPR9 and
>> SRC_GPR10[28] as reserved and I don't recall the reasoning for using
>> these for the boot mode. Can you provide some documentation that we
>> can put in the code? I'm thinking there is something else missing from
>> this function that should be able to determine that the serial
>> downloader was used in my case and return BOOT_DEVICE_UART
>> appropriately.
>
> I could also not found any documentation about SRC_GPR9 and SRC_GPR10[28].

I think the BootROM is the ultimate resource here. Did you look
internally for its source?

-- 
Otavio Salvador                             O.S. Systems
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