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imx9/flexcan: Add disable/enable cycle #14685

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merged 1 commit into from
Nov 7, 2024
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imx9/flexcan: Add disable/enable cycle #14685

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14 changes: 13 additions & 1 deletion arch/arm64/src/imx9/imx9_flexcan.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1911,6 +1911,14 @@ static int imx9_initialize(struct imx9_driver_s *priv)

static void imx9_reset(struct imx9_driver_s *priv)
{
/* Make sure module is enabled */

if (!imx9_setenable(priv->base, true))
{
canerr("Enable fail\n");
return;
}

modifyreg32(priv->base + IMX9_CAN_MCR_OFFSET, 0, CAN_MCR_SOFTRST);

if (!imx9_waitmcr_change(priv->base, CAN_MCR_SOFTRST, false))
Expand All @@ -1919,7 +1927,7 @@ static void imx9_reset(struct imx9_driver_s *priv)
return;
}

/* Enable module */
/* Disable module */

if (!imx9_setenable(priv->base, false))
{
Expand Down Expand Up @@ -2051,6 +2059,10 @@ int imx9_caninitialize(int intf)
return -EAGAIN;
}

/* Disable */

imx9_setenable(priv->base, false);

/* Initialize the driver structure */

priv->dev.d_ifup = imx9_ifup; /* I/F up (new IP address) callback */
Expand Down