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| author | Benoît Locher <Benoit.Locher@skf.com> | 2012-08-27 15:02:45 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-09-03 20:12:06 +0200 |
| commit | cab32f39dcc5b35db96497dc0a026b5dea76e4e7 (patch) | |
| tree | 152fdbb7d108c3e7946bf804c68f85cc204b4b2a /usr | |
| parent | 5002200599429e83fc13e0d9a2d4788b79515b0c (diff) | |
| download | linux-cab32f39dcc5b35db96497dc0a026b5dea76e4e7.tar.bz2 | |
can: mcp251x: avoid repeated frame bug
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.
Cc: <stable@vger.kernel.org>
Signed-off-by: Benoît Locher <Benoit.Locher@skf.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions