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The rk3568 CAN-FD errata sheet as of Tue 07 Nov 2023 11:25:31 +08:00 says: | The CAN controller's transmission of extended frames may | intermittently change into standard frames. | | When using the CAN controller to send extended frames, if the | 'tx_req' is configured as 1 and coincides with the internal | transmission point, the extended frame will be transmitted onto the | bus in the format of a standard frame. To work around Erratum 6, the driver is in self-receiving mode (RXSTX) and all received CAN frames are passed through rkcanfd_rxstx_filter(). Add a check in rkcanfd_rxstx_filter() whether the received frame corresponds to the current outgoing frame, but the extended CAN ID has been mangled to a standard ID. In this case re-send the original CAN frame. Tested-by: Alibek Omarov <a1ba.omarov@gmail.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Link: https://patch.msgid.link/20240904-rockchip-canfd-v5-12-8ae22bcb27cc@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.