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charset="utf-8" When recovery is triggered, rproc_stop() is called first then rproc_start(), but there is no rproc_unprepare_device() and rproc_prepare_device() in the flow. As the software reset is needed before DSP starts, so move software reset from imx_dsp_runtime_resume() to .load() to make the recovery work. And make sure memory is cleared before loading firmware. Signed-off-by: Shengjiu Wang --- drivers/remoteproc/imx_dsp_rproc.c | 43 +++++++++++++++++++----------- 1 file changed, 27 insertions(+), 16 deletions(-) diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_ds= p_rproc.c index 5ee622bf5352..ba764fc55686 100644 --- a/drivers/remoteproc/imx_dsp_rproc.c +++ b/drivers/remoteproc/imx_dsp_rproc.c @@ -774,7 +774,6 @@ static int imx_dsp_rproc_prepare(struct rproc *rproc) { struct imx_dsp_rproc *priv =3D rproc->priv; struct device *dev =3D rproc->dev.parent; - struct rproc_mem_entry *carveout; int ret; =20 ret =3D imx_dsp_rproc_add_carveout(priv); @@ -785,15 +784,6 @@ static int imx_dsp_rproc_prepare(struct rproc *rproc) =20 pm_runtime_get_sync(dev); =20 - /* - * Clear buffers after pm rumtime for internal ocram is not - * accessible if power and clock are not enabled. - */ - list_for_each_entry(carveout, &rproc->carveouts, node) { - if (carveout->va) - memset(carveout->va, 0, carveout->len); - } - return 0; } =20 @@ -1022,13 +1012,39 @@ static int imx_dsp_rproc_parse_fw(struct rproc *rpr= oc, const struct firmware *fw return 0; } =20 +static int imx_dsp_rproc_load(struct rproc *rproc, const struct firmware *= fw) +{ + struct imx_dsp_rproc *priv =3D rproc->priv; + const struct imx_dsp_rproc_dcfg *dsp_dcfg =3D priv->dsp_dcfg; + struct rproc_mem_entry *carveout; + int ret; + + /* Reset DSP if needed */ + if (dsp_dcfg->reset) + dsp_dcfg->reset(priv); + /* + * Clear buffers after pm rumtime for internal ocram is not + * accessible if power and clock are not enabled. + */ + list_for_each_entry(carveout, &rproc->carveouts, node) { + if (carveout->va) + memset(carveout->va, 0, carveout->len); + } + + ret =3D imx_dsp_rproc_elf_load_segments(rproc, fw); + if (ret) + return ret; + + return 0; +} + static const struct rproc_ops imx_dsp_rproc_ops =3D { .prepare =3D imx_dsp_rproc_prepare, .unprepare =3D imx_dsp_rproc_unprepare, .start =3D imx_dsp_rproc_start, .stop =3D imx_dsp_rproc_stop, .kick =3D imx_dsp_rproc_kick, - .load =3D imx_dsp_rproc_elf_load_segments, + .load =3D imx_dsp_rproc_load, .parse_fw =3D imx_dsp_rproc_parse_fw, .handle_rsc =3D imx_dsp_rproc_handle_rsc, .find_loaded_rsc_table =3D rproc_elf_find_loaded_rsc_table, @@ -1214,7 +1230,6 @@ static int imx_dsp_runtime_resume(struct device *dev) { struct rproc *rproc =3D dev_get_drvdata(dev); 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charset="utf-8" Add call rproc_coredump_set_elf_info() to initialize the elf info for coredump, otherwise coredump will report error "ELF class is not set". Signed-off-by: Shengjiu Wang --- drivers/remoteproc/imx_dsp_rproc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_ds= p_rproc.c index ba764fc55686..6e78a01755c7 100644 --- a/drivers/remoteproc/imx_dsp_rproc.c +++ b/drivers/remoteproc/imx_dsp_rproc.c @@ -1205,6 +1205,8 @@ static int imx_dsp_rproc_probe(struct platform_device= *pdev) goto err_detach_domains; } =20 + rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_XTENSA); + pm_runtime_enable(dev); =20 return 0; --=20 2.34.1