From: Evgeny Boger <boger@wirenboard.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
linux-arm-kernel@lists.infradead.org
Cc: Evgeny Boger <boger@wirenboard.com>,
devicetree@vger.kernel.org, linux-sunxi@lists.linux.dev,
linux-can@vger.kernel.org,
Wolfgang Grandegger <wg@grandegger.com>,
Marc Kleine-Budde <mkl@pengutronix.de>,
"David S . Miller" <davem@davemloft.net>,
Jeroen Hofstee <jhofstee@victronenergy.com>,
Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Subject: [PATCH v2 0/3] add support for Allwinner R40 CAN controller
Date: Tue, 11 Jan 2022 18:57:06 +0300 [thread overview]
Message-ID: <20220111155709.56501-1-boger@wirenboard.com> (raw)
Allwinner R40 (also known as A40i, T3, V40) has a CAN controller. The
controller is the same as in earlier A10 and A20 SoCs, but needs reset
line to be deasserted before use.
This patch series introduce new compatible for R40 CAN controller,
add support for reset line in driver and add the corresponding nodes
to the SoC .dtsi file.
The CAN IP was documented in early V40 datasheet [1]. It also fully
supported in vendor BSP. However, CAN description was removed from
more recent A40i, T3 and R40 user manuals and datasheets.
Anyway, we verified that the CAN controller is indeed there and tested
it extensively on A40i-based custom hardware [2].
[1] https://linux-sunxi.org/File:Allwinner_V40_Datasheet_V1.0.pdf
[2] https://wirenboard.com/en/product/wiren-board-7/
Changes in v2:
- sort pinmux nodes alphabetically and mark them with omit-if-no-ref
Evgeny Boger (3):
dt-bindings: net: can: add support for Allwinner R40 CAN controller
can: sun4i_can: add support for R40 CAN controller
ARM: dts: sun8i: r40: add node for CAN controller
.../net/can/allwinner,sun4i-a10-can.yaml | 24 ++++++++
arch/arm/boot/dts/sun8i-r40.dtsi | 21 +++++++
drivers/net/can/sun4i_can.c | 61 ++++++++++++++++++-
3 files changed, 105 insertions(+), 1 deletion(-)
--
2.25.1
next reply other threads:[~2022-01-11 15:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 15:57 Evgeny Boger [this message]
2022-01-11 15:57 ` [PATCH v2 1/3] dt-bindings: net: can: add support for Allwinner R40 CAN controller Evgeny Boger
2022-01-11 15:57 ` [PATCH v2 2/3] can: sun4i_can: add support for " Evgeny Boger
2022-01-11 16:24 ` Andre Przywara
2022-01-11 16:58 ` Evgeny Boger
2022-01-11 15:57 ` [PATCH v2 3/3] ARM: dts: sun8i: r40: add node for " Evgeny Boger
2022-01-12 6:51 ` [PATCH v2 0/3] add support for Allwinner R40 " Evgeny Boger
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