From: Binbin Zhou <zhoubinbin@loongson.cn>
To: Binbin Zhou <zhoubb.aaron@gmail.com>,
Huacai Chen <chenhuacai@loongson.cn>,
Marc Kleine-Budde <mkl@pengutronix.de>,
Vincent Mailhol <mailhol@kernel.org>,
Bingxiong Li <libingxiong@loongson.cn>
Cc: Huacai Chen <chenhuacai@kernel.org>,
Xuerui Wang <kernel@xen0n.name>,
loongarch@lists.linux.dev, linux-can@vger.kernel.org,
jeffbai@aosc.io, Binbin Zhou <zhoubinbin@loongson.cn>
Subject: [PATCH 0/2] Add Loongson CAN-FD controller driver
Date: Mon, 27 Apr 2026 15:17:58 +0800 [thread overview]
Message-ID: <cover.1777273055.git.zhoubinbin@loongson.cn> (raw)
Hi all:
This patchset adds support for the CAN-FD controller found on Loongson
CPUs.
Patch 1 introduces the basic CAN-FD controller driver with support
for classic CAN and CAN FD, including bit timing, error handling,
NAPI-based RX, and multiple TX buffers.
Patch 2 adds optional DMA support for RX path using the Loongson APB
CMC DMA engine, which significantly reduces CPU load under high
receive throughput.
The driver has been tested on Loongson-2K3000 platforms with various
CAN/CAN FD traffic patterns.
Finally, I'd like to thank Binxiong, the original author of this driver,
for his efforts in working on the patch.
Thanks.
Binbin
Binbin Zhou (2):
can: Add Loongson CAN-FD controller support
can: loongson_canfd: Add RXDMA support
MAINTAINERS | 7 +
drivers/net/can/Kconfig | 1 +
drivers/net/can/Makefile | 1 +
drivers/net/can/loongson_canfd/Kconfig | 16 +
drivers/net/can/loongson_canfd/Makefile | 6 +
.../net/can/loongson_canfd/loongson_canfd.c | 1298 +++++++++++++++++
.../loongson_canfd/loongson_canfd_kframe.h | 142 ++
.../can/loongson_canfd/loongson_canfd_kregs.h | 315 ++++
8 files changed, 1786 insertions(+)
create mode 100644 drivers/net/can/loongson_canfd/Kconfig
create mode 100644 drivers/net/can/loongson_canfd/Makefile
create mode 100644 drivers/net/can/loongson_canfd/loongson_canfd.c
create mode 100644 drivers/net/can/loongson_canfd/loongson_canfd_kframe.h
create mode 100644 drivers/net/can/loongson_canfd/loongson_canfd_kregs.h
base-commit: f1359c240191e686614847905fc861cbda480b47
--
2.52.0
next reply other threads:[~2026-04-27 7:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-27 7:17 Binbin Zhou [this message]
2026-04-27 7:17 ` [PATCH 1/2] can: Add Loongson CAN-FD controller support Binbin Zhou
2026-05-06 17:50 ` Vincent Mailhol
2026-04-27 7:18 ` [PATCH 2/2] can: loongson_canfd: Add RXDMA support Binbin Zhou
2026-05-06 17:51 ` Vincent Mailhol
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