imx: introduce rdc and boot auxiliary core
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Cover letter [U-Boot] [PATCH V2 00/11] imx: introduce rdc and boot auxiliary core
Hi Peng,
Quoted 6 lines · Peng Fan
From: Peng Fan <[email protected]>
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.
Quoted 8 lines
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.
Quoted 4 lines
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.
Quoted 13 lines
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
Signature · 5 lines
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