On 16.07.2021 02:03:44, Joakim Zhang wrote: >>> "With "fsl,imx6q-flexcan" compatible string, i.MX8MP FlexCAN would >>> not work" >> >> Why? > I could explain more if I remember correctly, i.MX8MP with ECC added > and default is enabled, without FLEXCAN_QUIRK_DISABLE_MECR quirk, > FlexCAN doesn't work, it will put device in freeze mode. However, as > Mac described, i.MX6Q doesn't need it. The bits that are used in the FLEXCAN_QUIRK_DISABLE_MECR are marked as reserved on the imx6's flexcan IP core. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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