diff options
| author | Benoît Locher <Benoit.Locher@skf.com> | 2012-08-27 15:02:45 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-09-19 15:05:05 +0100 |
| commit | 0112e26a6a0f374041033fb5472f01db2658ac51 (patch) | |
| tree | 38c231866b9a50aacf5842dd098a8b5e339f8f04 /include | |
| parent | f094377d3dc8bbf4baf9db85f88cd65fb1fccd1a (diff) | |
can: mcp251x: avoid repeated frame bug
commit cab32f39dcc5b35db96497dc0a026b5dea76e4e7 upstream.
The MCP2515 has a silicon bug causing repeated frame transmission, see section
5 of MCP2515 Rev. B Silicon Errata Revision G (March 2007).
Basically, setting TXBnCTRL.TXREQ in either SPI mode (00 or 11) will eventually
cause the bug. The workaround proposed by Microchip is to use mode 00 and send
a RTS command on the SPI bus to initiate the transmission.
Signed-off-by: Benoît Locher <Benoit.Locher@skf.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions