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
next prev 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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