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authorMarc Kleine-Budde <mkl@pengutronix.de>2011-01-09 22:46:25 +0100
committerMarc Kleine-Budde <mkl@pengutronix.de>2011-01-24 13:24:30 +0100
commit9e0a2d1ca3de6e284e99ad5cae1ae33ecb74c479 (patch)
tree2055519c8e9459d2f7c09f98440d6f243038fa60 /Documentation
parent0909c1ec6f016b3f580fa2f4630659a5874a8ef8 (diff)
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can: at91_can: don't use mailbox 0
Due to a chip bug (errata 50.2.6.3 & 50.3.5.3 in "AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the contents of mailbox 0 may be send under certain conditions (even if disabled or in rx mode). The workaround in the errata suggests not to use the mailbox and load it with a unused identifier. This patch implements the first part of the workaround, it updates AT91_MB_RX_NUM and AT91_MB_RX_FIRST (and the inline documentation) so that mailbox 0 stays unused. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
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