[U-Boot] [PATCH V2 00/11] imx: introduce rdc and boot auxiliary core

Stefano Babic sbabic at denx.de
Sun Feb 21 11:48:58 CET 2016


Hi Peng,

On 28/01/2016 09:54, Peng Fan wrote:
> From: Peng Fan <peng.fan at nxp.com>
> 
> To i.MX6SX and i.MX7D, there is a M4 core embedded. Resources
> can be shared or occupied exclusively by setting Resource
> domain controller between A9/7 core and M4 core.
> 
> Refer "Chapter 52 Resource Domain Controller (RDC)" of i.MX 6SoloX
> RM and "Chapter 3.2 Resource Domain Controller (RDC)" of i.MX 7Dual RM
> for detailed infomation.
> 
> To bootup M4 core, a new command 'bootaux' is introduced. To i.MX7D,
> we need to setting RDC when booting M4 core, so make RDC and boot
> auxiliary core patches into one patch set.
> 

I applied the whole series - maybe in future we can think about to make
"bootaux" available to other SOCs, too. At the moment, it remains i.MX
specific code and I do not see any reason to do it now - just to note it.

> Since we also sometimes put the M4 image in QSPI to let M4 directly fecth
> code in the memory mapped QSPI space, we can not support such as libz
> compressed image.
> 
> Peng Fan (11):
>   imx: mx6: introduce rdc regs
>   imx: imx-common: introduce Resource Domain Controller support
>   imx: mx6sx Add RDC mappings of masters and peripherals
>   imx: mx7d: Add RDC support
>   imx: mx7d: clock support for RDC
>   imx: imx-common: introduce boot auxiliary core
>   imx: mx6: implement functions to boot auxiliary core
>   imx: mx6sxsabresd: add command and macros for boot m4 core
>   imx: mx7: implement functions to boot auxiliary core
>   imx: mx7dsabresd: add command and macros for boot m4 core
>   imx: mx7d: isolate resources to domain 0 for A7 core
> 

Applied to u-boot-imx, thanks !

Best regards,
Stefano Babic

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