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From: peng.fan@oss.nxp.com
To: ohad@wizery.com, bjorn.andersson@linaro.org,
	mathieu.poirier@linaro.org, o.rempel@pengutronix.de,
	robh+dt@kernel.org, devicetree@vger.kernel.org
Cc: shawnguo@kernel.org, s.hauer@pengutronix.de,
	kernel@pengutronix.de, festevam@gmail.com,
	linux-remoteproc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH V3 5/8] remoteproc: imx_rproc: parse fsl,auto-boot
Date: Thu,  8 Apr 2021 09:54:55 +0800	[thread overview]
Message-ID: <1617846898-13662-6-git-send-email-peng.fan@oss.nxp.com> (raw)
In-Reply-To: <1617846898-13662-1-git-send-email-peng.fan@oss.nxp.com>

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,
+};
+
 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");
-- 
2.30.0


  parent reply	other threads:[~2021-04-08  2:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-08  1:54 [PATCH V3 0/8] remoteproc: imx_rproc: support i.MX7ULP/8MN/8MP peng.fan
2021-04-08  1:54 ` [PATCH V3 1/8] dt-bindings: remoteproc: imx_rproc: add fsl,auto-boot property peng.fan
2021-04-08  1:54 ` [PATCH V3 2/8] dt-bindings: remoteproc: imx_rproc: add i.MX7ULP support peng.fan
2021-04-13 16:55   ` Mathieu Poirier
2021-04-08  1:54 ` [PATCH V3 3/8] dt-bindings: remoteproc: imx_rproc: support i.MX8MN/P peng.fan
2021-04-08  1:54 ` [PATCH V3 4/8] remoteproc: imx_rproc: make clk optional peng.fan
2021-04-13 17:28   ` Mathieu Poirier
2021-04-08  1:54 ` peng.fan [this message]
2021-04-13 17:31   ` [PATCH V3 5/8] remoteproc: imx_rproc: parse fsl,auto-boot Mathieu Poirier
2021-04-08  1:54 ` [PATCH V3 6/8] remoteproc: imx_rproc: initial support for mutilple start/stop method peng.fan
2021-04-13 17:45   ` Mathieu Poirier
2021-04-08  1:54 ` [PATCH V3 7/8] remoteproc: imx_rproc: support i.MX7ULP peng.fan
2021-04-13 17:49   ` Mathieu Poirier
2021-04-08  1:54 ` [PATCH V3 8/8] remoteproc: imx_rproc: support i.MX8MN/P peng.fan
2021-04-13 17:52   ` Mathieu Poirier
2021-04-15 13:47     ` Peng Fan (OSS)

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