can: flexcan: mark RX via mailboxes as supported on MCF5441X

Most flexcan IP cores support 2 RX modes:
- FIFO
- mailbox

The flexcan IP core on the MCF5441X cannot receive CAN RTR messages
via mailboxes. However the mailbox mode is more performant. The commit

| 1c45f5778a3b ("can: flexcan: add ethtool support to change rx-rtr setting during runtime")

added support to switch from FIFO to mailbox mode on these cores.

After testing the mailbox mode on the MCF5441X by Angelo Dureghello,
this patch marks it (without RTR capability) as supported. Further the
IP core overview table is updated, that RTR reception via mailboxes is
not supported.

Link: https://lore.kernel.org/all/20220121084425.3141218-1-mkl@pengutronix.de
Tested-by: Angelo Dureghello <angelo@kernel-space.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c
index 0bff1884d5cc6615057399c63395274798933033..74d7fcbfd065b14c9d578268b1db4bc84594b542 100644 (file)
--- a/drivers/net/can/flexcan/flexcan-core.c
+++ b/drivers/net/can/flexcan/flexcan-core.c
@@ -296,6 +296,7 @@ static_assert(sizeof(struct flexcan_regs) ==  0x4 * 18 + 0xfb8);
 static const struct flexcan_devtype_data fsl_mcf5441x_devtype_data = {
        .quirks = FLEXCAN_QUIRK_BROKEN_PERR_STATE |
                FLEXCAN_QUIRK_NR_IRQ_3 | FLEXCAN_QUIRK_NR_MB_16 |
+               FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
                FLEXCAN_QUIRK_SUPPPORT_RX_FIFO,
 };
 

diff --git a/drivers/net/can/flexcan/flexcan.h b/drivers/net/can/flexcan/flexcan.h
index fccdff8b1f0f10fa3264c7b42b23ee28d25e1110..23fc09a7e10f330ecabd1412b6c96033ae23f274 100644 (file)
--- a/drivers/net/can/flexcan/flexcan.h
+++ b/drivers/net/can/flexcan/flexcan.h
@@ -21,7 +21,7 @@
  * Below is some version info we got:
  *    SOC   Version   IP-Version  Glitch- [TR]WRN_INT IRQ Err Memory err RTR rece-   FD Mode     MB
  *                                Filter? connected?  Passive detection  ption in MB Supported?
- * MCF5441X FlexCAN2  ?               no       yes        no       no       yes           no     16
+ * MCF5441X FlexCAN2  ?               no       yes        no       no        no           no     16
  *    MX25  FlexCAN2  03.00.00.00     no        no        no       no        no           no     64
  *    MX28  FlexCAN2  03.00.04.00    yes       yes        no       no        no           no     64
  *    MX35  FlexCAN2  03.00.00.00     no        no        no       no        no           no     64