can: flexcan: add NXP S32G2/S32G3 SoC support

Add device type data for S32G2/S32G3 SoC.

FlexCAN module from S32G2/S32G3 is similar with i.MX SoCs, but interrupt
management is different.

On S32G2/S32G3 SoC, there are separate interrupts for state change, bus
errors, Mailboxes 0-7 and Mailboxes 8-127 respectively.
In order to handle this FlexCAN hardware particularity, first reuse the
'FLEXCAN_QUIRK_NR_IRQ_3' quirk provided by mcf5441x's irq handling
support. Secondly, use the newly introduced
'FLEXCAN_QUIRK_SECONDARY_MB_IRQ' quirk which handles the case where two
separate mailbox ranges are controlled by independent hardware interrupt
lines.

Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
Link: https://patch.msgid.link/20250113120704.522307-4-ciprianmarian.costea@oss.nxp.com
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 a8a4cc4c064d923004fca62d0f094f9213ddf04a..b347a1c93536d54efaa5f7d3347bd47c20860b3e 100644 (file)
--- a/drivers/net/can/flexcan/flexcan-core.c
+++ b/drivers/net/can/flexcan/flexcan-core.c
@@ -386,6 +386,16 @@ static const struct flexcan_devtype_data fsl_lx2160a_r1_devtype_data = {
                FLEXCAN_QUIRK_SUPPORT_RX_MAILBOX_RTR,
 };
 
+static const struct flexcan_devtype_data nxp_s32g2_devtype_data = {
+       .quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
+               FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+               FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_SUPPORT_FD |
+               FLEXCAN_QUIRK_SUPPORT_ECC | FLEXCAN_QUIRK_NR_IRQ_3 |
+               FLEXCAN_QUIRK_SUPPORT_RX_MAILBOX |
+               FLEXCAN_QUIRK_SUPPORT_RX_MAILBOX_RTR |
+               FLEXCAN_QUIRK_SECONDARY_MB_IRQ,
+};
+
 static const struct can_bittiming_const flexcan_bittiming_const = {
        .name = DRV_NAME,
        .tseg1_min = 4,
@@ -2055,6 +2065,7 @@ static const struct of_device_id flexcan_of_match[] = {
        { .compatible = "fsl,vf610-flexcan", .data = &fsl_vf610_devtype_data, },
        { .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, },
        { /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, flexcan_of_match);