diff options
| author | Peng Fan <[email protected]> | 2026-02-02 10:57:45 +0800 |
|---|---|---|
| committer | Fabio Estevam <[email protected]> | 2026-02-06 20:31:32 -0300 |
| commit | 3fa7b1055b891e4f98b7e36c8efa6ed928447bfe (patch) | |
| tree | 635d27d4f56d56ee10a60e0d24f87fd9ae70348b /arch | |
| parent | 15cb4033c93727b5dbe437860086ced7cdb9c873 (diff) | |
remoteproc: imx: Add i.MX95 support
i.MX95 uses System Manager(sm) API to start/stop logical machine or cpu.
There are two modes:
M7 in a dedicated logical machine, use LMM API
M7 and A55 in same logical machine, use CPU API
Extend the driver to using LMM and CPU protocol to manage the M7 core:
- Detect using LMM or CPU API in probe using API scmi_imx_lmm_info().
- Compare linux LM ID(got using scmi_imx_lmm_info) and M7 LM ID(the ID
is fixed as 1 in SM firmware if M7 is in a separate LM),
if Linux LM ID is not same as M7 LM ID(linux and M7 in same LM), use
LMM protocol to start/stop. Whether using CPU or LMM protocol to
start/stop, the M7 status detection could use CPU protocol to detect
started or not. So in imx_rproc_is_running, use scmi_imx_cpu_started to
check the status of M7.
- For above case (2), Use scmi_imx_lmm_power_boot to detect whether
the M7 LM is under control of A55 LM.
- For above case , after using SCMI_IMX_LMM_POWER_ON to check
permission, scmi_imx_lmm_shutdown API should be called to shutdown
the M7 LM.
- Add a new ops imx_rproc_ops_sm.
Signed-off-by: Peng Fan <[email protected]>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions
