Re: [PATCH V4 7/8] remoteproc: imx_rproc: support i.MX7ULP

2021-04-16 Thread Mathieu Poirier
On Thu, Apr 15, 2021 at 09:27:40PM +0800, peng@oss.nxp.com wrote: > From: Peng Fan > > i.MX7ULP A7 core runs under control of M4 core, M4 core starts by ROM > and powers most serivces used by A7 core, so A7 core has no power to s/serivces/services > start and stop M4 core. And the M4

[PATCH V4 7/8] remoteproc: imx_rproc: support i.MX7ULP

2021-04-15 Thread peng . fan
From: Peng Fan i.MX7ULP A7 core runs under control of M4 core, M4 core starts by ROM and powers most serivces used by A7 core, so A7 core has no power to start and stop M4 core. And the M4 core's state is default RPROC_DETACHED and remoteproc framework not able to stop the M4 core.