netdev - [PATCH net-next 6/8] can: rcar

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Message-ID: <20260131101512.1958907-7-mkl@pengutronix.de>
Date: Sat, 31 Jan 2026 11:11:47 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 6/8] can: rcar_canfd: Add RZ/T2H support

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

The CAN-FD IP on the RZ/T2H SoC is similar to R-Car Gen4, but differs in
the AFLPN and CFTML bits and supports two channels with eight interrupts.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Link: https://patch.msgid.link/20260114154525.3169992-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/rcar/rcar_canfd.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index 4a653d8978ba..eaf8cac78038 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -670,6 +670,23 @@ static const struct rcar_canfd_hw_info r9a09g047_hw_info = {
 	.external_clk = 0,
 };
 
+static const struct rcar_canfd_hw_info r9a09g077_hw_info = {
+	.nom_bittiming = &rcar_canfd_gen4_nom_bittiming_const,
+	.data_bittiming = &rcar_canfd_gen4_data_bittiming_const,
+	.tdc_const = &rcar_canfd_gen4_tdc_const,
+	.regs = &rcar_gen4_regs,
+	.sh = &rcar_gen4_shift_data,
+	.rnc_field_width = 16,
+	.max_aflpn = 15,
+	.max_cftml = 31,
+	.max_channels = 2,
+	.postdiv = 1,
+	.multi_channel_irqs = 1,
+	.ch_interface_mode = 1,
+	.shared_can_regs = 1,
+	.external_clk = 1,
+};
+
 /* Helper functions */
 static inline void rcar_canfd_update(u32 mask, u32 val, u32 __iomem *reg)
 {
@@ -2345,6 +2362,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(rcar_canfd_pm_ops, rcar_canfd_suspend,
 static const __maybe_unused struct of_device_id rcar_canfd_of_table[] = {
 	{ .compatible = "renesas,r8a779a0-canfd", .data = &rcar_gen4_hw_info },
 	{ .compatible = "renesas,r9a09g047-canfd", .data = &r9a09g047_hw_info },
+	{ .compatible = "renesas,r9a09g077-canfd", .data = &r9a09g077_hw_info },
 	{ .compatible = "renesas,rcar-gen3-canfd", .data = &rcar_gen3_hw_info },
 	{ .compatible = "renesas,rcar-gen4-canfd", .data = &rcar_gen4_hw_info },
 	{ .compatible = "renesas,rzg2l-canfd", .data = &rzg2l_hw_info },
-- 
2.51.0