From: Peng Fan <peng.fan@nxp.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
"Peng Fan (OSS)" <peng.fan@oss.nxp.com>
Cc: "ohad@wizery.com" <ohad@wizery.com>,
"bjorn.andersson@linaro.org" <bjorn.andersson@linaro.org>,
"o.rempel@pengutronix.de" <o.rempel@pengutronix.de>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>,
"linux-remoteproc@vger.kernel.org"
<linux-remoteproc@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH V5 7/8] remoteproc: imx_rproc: support i.MX7ULP
Date: Thu, 6 May 2021 04:11:46 +0000 [thread overview]
Message-ID: <DB6PR0402MB2760B8377D023ACFFED9F51988589@DB6PR0402MB2760.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20210503162935.GB1699665@xps15>
> Subject: Re: [PATCH V5 7/8] remoteproc: imx_rproc: support i.MX7ULP
>
> On Wed, Apr 21, 2021 at 10:20:21AM +0800, peng.fan@oss.nxp.com wrote:
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > 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
>
> I pointed that out on V4 - why do I have to do so again?
I forgot that comment, sorry. Thanks for your time.
Thanks,
Peng.
>
> With that:
>
> Reviwed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
>
> > 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.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> > drivers/remoteproc/imx_rproc.c | 49
> > ++++++++++++++++++++++++++--------
> > 1 file changed, 38 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/remoteproc/imx_rproc.c
> > b/drivers/remoteproc/imx_rproc.c index e9d9860e4fce..d26254609a52
> > 100644
> > --- a/drivers/remoteproc/imx_rproc.c
> > +++ b/drivers/remoteproc/imx_rproc.c
> > @@ -136,6 +136,14 @@ static const struct imx_rproc_att
> imx_rproc_att_imx8mq[] = {
> > { 0x40000000, 0x40000000, 0x80000000, 0 }, };
> >
> > +static const struct imx_rproc_att imx_rproc_att_imx7ulp[] = {
> > + {0x1FFD0000, 0x1FFD0000, 0x30000, ATT_OWN},
> > + {0x20000000, 0x20000000, 0x10000, ATT_OWN},
> > + {0x2F000000, 0x2F000000, 0x20000, ATT_OWN},
> > + {0x2F020000, 0x2F020000, 0x20000, ATT_OWN},
> > + {0x60000000, 0x60000000, 0x40000000, 0} };
> > +
> > static const struct imx_rproc_att imx_rproc_att_imx7d[] = {
> > /* dev addr , sys addr , size , flags */
> > /* OCRAM_S (M4 Boot code) - alias */ @@ -196,6 +204,12 @@ static
> > const struct imx_rproc_dcfg imx_rproc_cfg_imx8mq = {
> > .method = IMX_RPROC_MMIO,
> > };
> >
> > +static const struct imx_rproc_dcfg imx_rproc_cfg_imx7ulp = {
> > + .att = imx_rproc_att_imx7ulp,
> > + .att_size = ARRAY_SIZE(imx_rproc_att_imx7ulp),
> > + .method = IMX_RPROC_NONE,
> > +};
> > +
> > static const struct imx_rproc_dcfg imx_rproc_cfg_imx7d = {
> > .src_reg = IMX7D_SRC_SCR,
> > .src_mask = IMX7D_M4_RST_MASK,
> > @@ -238,6 +252,9 @@ static int imx_rproc_stop(struct rproc *rproc)
> > struct device *dev = priv->dev;
> > int ret;
> >
> > + if (dcfg->method == IMX_RPROC_NONE)
> > + return -EOPNOTSUPP;
> > +
> > ret = regmap_update_bits(priv->regmap, dcfg->src_reg,
> > dcfg->src_mask, dcfg->src_stop);
> > if (ret)
> > @@ -573,12 +590,31 @@ static void imx_rproc_free_mbox(struct rproc
> > *rproc)
> >
> > static int imx_rproc_detect_mode(struct imx_rproc *priv) {
> > + struct regmap_config config = { .name = "imx-rproc" };
> > const struct imx_rproc_dcfg *dcfg = priv->dcfg;
> > struct device *dev = priv->dev;
> > + struct regmap *regmap;
> > int ret;
> > u32 val;
> >
> > - ret = regmap_read(priv->regmap, dcfg->src_reg, &val);
> > + switch (dcfg->method) {
> > + case IMX_RPROC_NONE:
> > + priv->rproc->state = RPROC_DETACHED;
> > + return 0;
> > + default:
> > + break;
> > + }
> > +
> > + regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
> > + if (IS_ERR(regmap)) {
> > + dev_err(dev, "failed to find syscon\n");
> > + return PTR_ERR(regmap);
> > + }
> > +
> > + priv->regmap = regmap;
> > + regmap_attach_dev(dev, regmap, &config);
> > +
> > + ret = regmap_read(regmap, dcfg->src_reg, &val);
> > if (ret) {
> > dev_err(dev, "Failed to read src\n");
> > return ret;
> > @@ -625,18 +661,9 @@ static int imx_rproc_probe(struct platform_device
> *pdev)
> > struct device_node *np = dev->of_node;
> > struct imx_rproc *priv;
> > struct rproc *rproc;
> > - struct regmap_config config = { .name = "imx-rproc" };
> > const struct imx_rproc_dcfg *dcfg;
> > - struct regmap *regmap;
> > int ret;
> >
> > - regmap = syscon_regmap_lookup_by_phandle(np, "syscon");
> > - if (IS_ERR(regmap)) {
> > - dev_err(dev, "failed to find syscon\n");
> > - return PTR_ERR(regmap);
> > - }
> > - regmap_attach_dev(dev, regmap, &config);
> > -
> > /* set some other name then imx */
> > rproc = rproc_alloc(dev, "imx-rproc", &imx_rproc_ops,
> > NULL, sizeof(*priv));
> > @@ -651,7 +678,6 @@ static int imx_rproc_probe(struct platform_device
> > *pdev)
> >
> > priv = rproc->priv;
> > priv->rproc = rproc;
> > - priv->regmap = regmap;
> > priv->dcfg = dcfg;
> > priv->dev = dev;
> >
> > @@ -720,6 +746,7 @@ static int imx_rproc_remove(struct platform_device
> > *pdev) }
> >
> > static const struct of_device_id imx_rproc_of_match[] = {
> > + { .compatible = "fsl,imx7ulp-cm4", .data = &imx_rproc_cfg_imx7ulp },
> > { .compatible = "fsl,imx7d-cm4", .data = &imx_rproc_cfg_imx7d },
> > { .compatible = "fsl,imx6sx-cm4", .data = &imx_rproc_cfg_imx6sx },
> > { .compatible = "fsl,imx8mq-cm4", .data = &imx_rproc_cfg_imx8mq },
> > --
> > 2.30.0
> >
next prev parent reply other threads:[~2021-05-06 4:11 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-21 2:20 [PATCH V5 0/8] remoteproc: imx_rproc: support i.MX7ULP/8MN/8MP peng.fan
2021-04-21 2:20 ` [PATCH V5 1/8] dt-bindings: remoteproc: imx_rproc: add fsl,auto-boot property peng.fan
2021-04-21 2:20 ` [PATCH V5 2/8] dt-bindings: remoteproc: imx_rproc: add i.MX7ULP support peng.fan
2021-04-21 2:20 ` [PATCH V5 3/8] dt-bindings: remoteproc: imx_rproc: support i.MX8MN/P peng.fan
2021-04-21 2:20 ` [PATCH V5 4/8] remoteproc: imx_rproc: parse fsl,auto-boot peng.fan
2021-04-21 2:20 ` [PATCH V5 5/8] remoteproc: imx_rproc: initial support for mutilple start/stop method peng.fan
2021-05-03 16:30 ` Mathieu Poirier
2021-04-21 2:20 ` [PATCH V5 6/8] remoteproc: imx_rproc: make clk optional peng.fan
2021-04-21 2:20 ` [PATCH V5 7/8] remoteproc: imx_rproc: support i.MX7ULP peng.fan
2021-05-03 16:29 ` Mathieu Poirier
2021-05-06 4:11 ` Peng Fan [this message]
2021-04-21 2:20 ` [PATCH V5 8/8] remoteproc: imx_rproc: support i.MX8MN/P peng.fan
2021-05-03 16:25 ` Mathieu Poirier
2021-04-22 16:56 ` [PATCH V5 0/8] remoteproc: imx_rproc: support i.MX7ULP/8MN/8MP Mathieu Poirier
2021-04-23 1:01 ` Peng Fan
2021-04-23 14:50 ` Mathieu Poirier
2021-04-23 23:28 ` Peng Fan
2021-04-26 15:46 ` Mathieu Poirier
2021-04-26 23:45 ` Peng Fan
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