diff options
| -rw-r--r-- | drivers/net/can/flexcan.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index eb1ebf3..a780220 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -198,6 +198,8 @@ #define FLEXCAN_HAS_V10_FEATURES BIT(1) /* For core version >= 10 */ #define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* [TR]WRN_INT not connected */ #define FLEXCAN_HAS_MECR_FEATURES BIT(3) /* Memory error detection */ +#define FLEXCAN_HAS_ONLY_LEGACY_RX_SUPPORT \ + BIT(4) /* No RX FIFO mode support */ /* Structure of the message buffer */ struct flexcan_mb { @@ -268,10 +270,26 @@ static struct flexcan_devtype_data fsl_imx28_devtype_data; static struct flexcan_devtype_data fsl_imx6q_devtype_data = { .features = FLEXCAN_HAS_V10_FEATURES, }; + static struct flexcan_devtype_data fsl_vf610_devtype_data = { .features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_MECR_FEATURES, }; +/* LS1021A-Rev1 has a broken RX-FIFO support. So only legacy RX message-buffers + * work here. + */ +static struct flexcan_devtype_data fsl_ls1021a_devtype_data = { + .features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_MECR_FEATURES | + FLEXCAN_HAS_ONLY_LEGACY_RX_SUPPORT, +}; + +/* LS1021A-Rev2 has functional RX-FIFO mode, so no need to fall back to + * the legacy mode. + */ +static struct flexcan_devtype_data fsl_ls1021a_r2_devtype_data = { + .features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_MECR_FEATURES, +}; + static const struct can_bittiming_const flexcan_bittiming_const = { .name = DRV_NAME, .tseg1_min = 4, @@ -1203,6 +1221,10 @@ static void unregister_flexcandev(struct net_device *dev) static const struct of_device_id flexcan_of_match[] = { { .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, }, { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, }, + { .compatible = "fsl,ls1021a-flexcan", + .data = &fsl_ls1021a_devtype_data, }, + { .compatible = "fsl,ls1021ar2-flexcan", + .data = &fsl_ls1021a_r2_devtype_data, }, { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, }, { .compatible = "fsl,vf610-flexcan", .data = &fsl_vf610_devtype_data, }, { /* sentinel */ }, |