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WARM1d REVIEWED: 3 (2M)

Revision v6 of 7 in this series; 2 review trailers (1 from subsystem maintainers).

Revisions (7)
  1. v3 [diff vs current]
  2. v4 [diff vs current]
  3. v4 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]
  6. v6 [diff vs current]
  7. v6 current

[RESEND PATCH v6 6/6] can: flexcan: add NXP S32N79 SoC support

From: Ciprian Costea <ciprianmarian.costea@oss.nxp.com>
Date: 2026-08-14 09:03:48
Also in: imx, linux-can, lkml
Subsystem: can network drivers, the rest · Maintainers: Marc Kleine-Budde, Vincent Mailhol, Linus Torvalds

From: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>

Add device data and compatible string for NXP S32N79 SoC.

FlexCAN IP integration on S32N79 SoC uses two interrupts:
- one for mailboxes 0-127
- one for signaling bus errors and device state changes

Co-developed-by: Andra-Teodora Ilie <redacted>
Signed-off-by: Andra-Teodora Ilie <redacted>
Co-developed-by: Larisa Grigore <redacted>
Signed-off-by: Larisa Grigore <redacted>
Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
Reviewed-by: Vincent Mailhol <mailhol@kernel.org>
Reviewed-and-tested-by: Haibo Chen [off-list ref]
Tested-by: Enric Balletbo i Serra <redacted>
---
 drivers/net/can/flexcan/flexcan-core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c
index e7e3fb41f55e..54279b91cf5e 100644
--- a/drivers/net/can/flexcan/flexcan-core.c
+++ b/drivers/net/can/flexcan/flexcan-core.c
@@ -403,6 +403,15 @@ static const struct flexcan_devtype_data nxp_s32g2_devtype_data = {
 		FLEXCAN_QUIRK_SECONDARY_MB_IRQ,
 };
 
+static const struct flexcan_devtype_data nxp_s32n_devtype_data = {
+	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
+		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_RX_MAILBOX |
+		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SUPPORT_FD |
+		FLEXCAN_QUIRK_SUPPORT_ECC | FLEXCAN_QUIRK_SUPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPORT_RX_MAILBOX_RTR |
+		FLEXCAN_QUIRK_IRQ_BERR,
+};
+
 static const struct can_bittiming_const flexcan_bittiming_const = {
 	.name = DRV_NAME,
 	.tseg1_min = 4,
@@ -2222,6 +2231,7 @@ static const struct of_device_id flexcan_of_match[] = {
 	{ .compatible = "fsl,ls1021ar2-flexcan", .data = &fsl_ls1021a_r2_devtype_data, },
 	{ .compatible = "fsl,lx2160ar1-flexcan", .data = &fsl_lx2160a_r1_devtype_data, },
 	{ .compatible = "nxp,s32g2-flexcan", .data = &nxp_s32g2_devtype_data, },
+	{ .compatible = "nxp,s32n79-flexcan", .data = &nxp_s32n_devtype_data, },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, flexcan_of_match);
-- 
2.43.0
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