linux-kernel - RE: [PATCH 0/5] firmware: scmi/imx: Add i.MX95 LMM/CPU Protocol

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Message-ID:
 <PAXPR04MB8459AE8FDBEA8B1E979A36D888E22@PAXPR04MB8459.eurprd04.prod.outlook.com>
Date: Sat, 25 Jan 2025 01:00:05 +0000
From: Peng Fan <peng.fan@....com>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>, Sudeep Holla
	<sudeep.holla@....com>, Cristian Marussi <cristian.marussi@....com>, Shawn
 Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix
 Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"arm-scmi@...r.kernel.org" <arm-scmi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "imx@...ts.linux.dev"
	<imx@...ts.linux.dev>
Subject: RE: [PATCH 0/5] firmware: scmi/imx: Add i.MX95 LMM/CPU Protocol

> Subject: [PATCH 0/5] firmware: scmi/imx: Add i.MX95 LMM/CPU
> Protocol

Just let you know, our SM has a new ID LMM_RESET_VECTOR_SET
in NXP dev branch, that I overlooked when I developed this patch
set using master branch.

I will include it in v2 later.

Thanks,
Peng.

> 
> i.MX95 System Manager(SM) implements Logical Machine
> Management(LMM) and CPU protocol to manage Logical Machine(LM)
> and CPUs(eg, M7).
> 
> To manage M7 in a separate LM or in same LM as Linux itself. LMM
> APIs and CPU APIs are needed.
> 
> When M7 is in LM 'lm-m7', and this LM is managable by 'linux-lm',
> linux could use LMM_BOOT, LMM_SHUTDOWN and etc to manage
> 'lm-m7'.
> 
> If in same LM, use CPU_START, CPU_STOP, CPU_RESET_VECTOR_SET
> and etc to manage M7.
> 
> Both LMM/CPU APIs will be used by remoteproc driver. The
> remoteproc patchset will be posted out after this patchset gets
> reviewed or in good shape per Maitainer's view.
> 
> Build pass with COMPILE_TEST
> Tested with remoteproc on i.MX95
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
> Peng Fan (5):
>       firmware: arm_scmi: imx: Add i.MX95 LMM protocol
>       firmware: arm_scmi: imx: Add i.MX95 CPU Protocol
>       firmware: arm_scmi: imx: Add LMM and CPU documentation
>       firmware: imx: Add i.MX95 SCMI LMM driver
>       firmware: imx: Add i.MX95 SCMI CPU driver
> 
>  drivers/firmware/arm_scmi/vendors/imx/Kconfig      |  22 +
>  drivers/firmware/arm_scmi/vendors/imx/Makefile     |   2 +
>  drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c | 283
> +++++++++  drivers/firmware/arm_scmi/vendors/imx/imx-sm-lmm.c |
> 235 +++++++
>  drivers/firmware/arm_scmi/vendors/imx/imx95.rst    | 692
> +++++++++++++++++++++
>  drivers/firmware/imx/Kconfig                       |  22 +
>  drivers/firmware/imx/Makefile                      |   2 +
>  drivers/firmware/imx/sm-cpu.c                      |  91 +++
>  drivers/firmware/imx/sm-lmm.c                      |  89 +++
>  include/linux/firmware/imx/sm.h                    |  56 ++
>  include/linux/scmi_imx_protocol.h                  |  39 ++
>  11 files changed, 1533 insertions(+)
> ---
> base-commit: 0907e7fb35756464aa34c35d6abb02998418164b
> change-id: 20250120-imx-lmm-cpu-418daaa257e2
> 
> Best regards,
> --
> Peng Fan <peng.fan@....com>