can: flexcan: activate individual RX masking and initialize reg_rximr

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Modern flexcan IP cores support two RX modes. One is using the 6 fames deep
hardware FIFO, the other is using up to 64 mailboxes (in non FIFO mode). For
now only the HW FIFO mode is activated.

In order to make use of the RX mailboxes the individual RX masking feature has
to be activated, otherwise matching mailboxes are overwritten during the
reception process. This however switches on the individual RX masking, which
uses reg_rximr registers for masking.

This patch activates the individual RX masking feature unconditionally and
initializes the mask registers (reg_rximr) with 0x0 == "don't care", which
switches off any filtering.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

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This commit is contained in:

Marc Kleine-Budde 2015-08-31 21:03:29 +02:00

parent 30164759db

commit 4bd888a80b

1 changed files with 7 additions and 1 deletions

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8

drivers/net/can/flexcan.c

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