diff mbox series

[V2,7/8] remoteproc: imx_rproc: support i.MX7ULP

Message ID 1617095574-6764-8-git-send-email-peng.fan@oss.nxp.com
State Superseded
Headers show
Series remoteproc: imx_rproc: support i.MX7ULP/8MN/8MP | expand

Commit Message

Peng Fan (OSS) March 30, 2021, 9:12 a.m. UTC 
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
start and stop M4 core.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

---
 drivers/remoteproc/imx_rproc.c | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

-- 
2.30.0
diff mbox series

Patch

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index a7fa9d7fc2d1..b911a7539897 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -147,6 +147,14 @@  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 */
@@ -207,6 +215,12 @@  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,
@@ -598,12 +612,16 @@  static int imx_rproc_detect_mode(struct imx_rproc *priv)
 			return ret;
 		}
 
-		if (!(val & dcfg->src_stop)) {
-			priv->rproc->state = RPROC_DETACHED;
+		if (!(val & dcfg->src_stop))
 			priv->mode = IMX_RPROC_EARLY_BOOT;
-		}
 	}
 
+	if (dcfg->method == IMX_RPROC_NONE)
+		priv->mode = IMX_RPROC_EARLY_BOOT;
+
+	if (priv->mode == IMX_RPROC_EARLY_BOOT)
+		priv->rproc->state = RPROC_DETACHED;
+
 	return 0;
 }
 
@@ -724,6 +742,7 @@  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 },