From 66a6ef02294f066b5e059373e798b700b4b73b3b Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Wed, 17 Sep 2014 12:50:48 +0200 Subject: [PATCH] can: flexcan: add documentation about mailbox organization This patch adds a short documentation snippet about the mailbox organization as it's regularly not correct in freescale's datasheets. Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 0f5965c..eb3ebfb 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -230,6 +230,16 @@ struct flexcan_regs { u32 rxfir; /* 0x4c */ u32 _reserved3[12]; /* 0x50 */ struct flexcan_mb cantxfg[64]; /* 0x80 */ + /* FIFO-mode: + * MB + * 0x080...0x08f 0 RX message buffer + * 0x090...0x0df 1-5 reserverd + * 0x0e0...0x0ff 6-7 8 entry ID table + * (mx25, mx28, mx35, mx53) + * 0x0e0...0x2df 6-7..37 8..128 entry ID table + * size conf'ed via ctrl2::RFFN + * (mx6, vf610) + */ u32 _reserved4[408]; u32 mecr; /* 0xae0 */ u32 erriar; /* 0xae4 */ -- 2.7.4