| Message ID | 1617846898-13662-6-git-send-email-peng.fan@oss.nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | remoteproc: imx_rproc: support i.MX7ULP/8MN/8MP | expand |
On Thu, Apr 08, 2021 at 09:54:55AM +0800, peng.fan@oss.nxp.com wrote: > From: Peng Fan <peng.fan@nxp.com> > > Parse fsl,auto-boot to indicate whether need remoteproc framework > auto boot or not. > > When remote processor is booted before Linux Kernel up, do not parse > fsl,auto-boot. So add an entry to store the working mode of remote > processor. Currently only IMX_RPROC_NORMAL, IMX_RPROC_EARLY_BOOT. > > Signed-off-by: Peng Fan <peng.fan@nxp.com> > --- > drivers/remoteproc/imx_rproc.c | 20 +++++++++++++++++++- > 1 file changed, 19 insertions(+), 1 deletion(-) > > diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c > index ca17f520d904..c576e12d3817 100644 > --- a/drivers/remoteproc/imx_rproc.c > +++ b/drivers/remoteproc/imx_rproc.c > @@ -83,6 +83,16 @@ struct imx_rproc_dcfg { > size_t att_size; > }; > > +enum imx_rproc_mode { > + /* Linux load/kick remote core */ > + IMX_RPROC_NORMAL, > + /* > + * remote core booted before kicking Linux, and remote core > + * could be stopped & restarted by Linux > + */ > + IMX_RPROC_EARLY_BOOT, > +}; > + As far as I can see a new mode to track the state of the remote processor is not needed. rproc->state can do that for you. > struct imx_rproc { > struct device *dev; > struct regmap *regmap; > @@ -96,6 +106,7 @@ struct imx_rproc { > struct work_struct rproc_work; > struct workqueue_struct *workqueue; > void __iomem *rsc_table; > + enum imx_rproc_mode mode; > }; > > static const struct imx_rproc_att imx_rproc_att_imx8mq[] = { > @@ -565,14 +576,18 @@ static int imx_rproc_detect_mode(struct imx_rproc *priv) > int ret; > u32 val; > > + priv->mode = IMX_RPROC_NORMAL; > + > ret = regmap_read(priv->regmap, dcfg->src_reg, &val); > if (ret) { > dev_err(dev, "Failed to read src\n"); > return ret; > } > > - if (!(val & dcfg->src_stop)) > + if (!(val & dcfg->src_stop)) { > + priv->mode = IMX_RPROC_EARLY_BOOT; > priv->rproc->state = RPROC_DETACHED; > + } > > return 0; > } > @@ -654,6 +669,9 @@ static int imx_rproc_probe(struct platform_device *pdev) > > INIT_WORK(&priv->rproc_work, imx_rproc_vq_work); > > + if (priv->mode == IMX_RPROC_NORMAL) > + rproc->auto_boot = of_property_read_bool(np, "fsl,auto-boot"); > + if (rproc->state == RPROC_DETACHED) > ret = rproc_add(rproc); > if (ret) { > dev_err(dev, "rproc_add failed\n"); > -- > 2.30.0 >
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index ca17f520d904..c576e12d3817 100644 --- a/drivers/remoteproc/imx_rproc.c +++ b/drivers/remoteproc/imx_rproc.c @@ -83,6 +83,16 @@ struct imx_rproc_dcfg { size_t att_size; }; +enum imx_rproc_mode { + /* Linux load/kick remote core */ + IMX_RPROC_NORMAL, + /* + * remote core booted before kicking Linux, and remote core + * could be stopped & restarted by Linux + */ + IMX_RPROC_EARLY_BOOT, +}; + struct imx_rproc { struct device *dev; struct regmap *regmap; @@ -96,6 +106,7 @@ struct imx_rproc { struct work_struct rproc_work; struct workqueue_struct *workqueue; void __iomem *rsc_table; + enum imx_rproc_mode mode; }; static const struct imx_rproc_att imx_rproc_att_imx8mq[] = { @@ -565,14 +576,18 @@ static int imx_rproc_detect_mode(struct imx_rproc *priv) int ret; u32 val; + priv->mode = IMX_RPROC_NORMAL; + ret = regmap_read(priv->regmap, dcfg->src_reg, &val); if (ret) { dev_err(dev, "Failed to read src\n"); return ret; } - if (!(val & dcfg->src_stop)) + if (!(val & dcfg->src_stop)) { + priv->mode = IMX_RPROC_EARLY_BOOT; priv->rproc->state = RPROC_DETACHED; + } return 0; } @@ -654,6 +669,9 @@ static int imx_rproc_probe(struct platform_device *pdev) INIT_WORK(&priv->rproc_work, imx_rproc_vq_work); + if (priv->mode == IMX_RPROC_NORMAL) + rproc->auto_boot = of_property_read_bool(np, "fsl,auto-boot"); + ret = rproc_add(rproc); if (ret) { dev_err(dev, "rproc_add failed\n");