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由 Benoît Locher 提交于
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: NBenoît Locher <Benoit.Locher@skf.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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