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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Elaine Zhang , David Jander Cc: Simon Horman , linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Marc Kleine-Budde X-Mailer: b4 0.15-dev-37811 X-Developer-Signature: v=1; a=openpgp-sha256; l=1219; i=mkl@pengutronix.de; h=from:subject:message-id; bh=71zf/MNfEu3gRqn5xXuWHDmR5jq4HnnTZs6zICou+pI=; b=owGbwMvMwMWoYbHIrkp3Tz7jabUkhrRVrBenl67kKfvcoy7hoMDhKBZXfHCGcrxm8sV11n8rD 63oOfa7k9GYhYGRi0FWTJElwGFX24NtLHc199jFwwxiZQKZwsDFKQATmW3D/leI94G07MH8grvu Cz/NWJqsMKOBWeHAhqMqt+LU47YeVNHw3ywzJdSfeY1Z8mmldBnL20dStxtybVWyZjBjW1cw8bK pou7ynFjOpbxteldWWFbKdbXN/i2kXL/jXtCaY0KF4Q8cHdOk8+9dYVmZccqPhzVgfXjylcxvRT eeF4R3cFd9P5kUKyfvsj2agVV+YfbheKsTSYzZUjF7pgXOaOb7yxvxTGW5sPeTCfEa8wqm3zzw+ oto84tf/4LFEqXeqWu1hojsqvNKq7Py7eDUY/Bbyj8pKfnkCcZb9byycxb3q37Z43f3hf76M/dc XTZxBUW9Kfyv2nNjxUrXg4bRCnFqvky7NbwuXMrfeHgLAA== X-Developer-Key: i=mkl@pengutronix.de; a=openpgp; fpr=C1400BA0B3989E6FBC7D5B5C2B5EE211C58AEA54 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240731_103800_681339_C39A2C51 X-CRM114-Status: GOOD ( 11.18 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Even the rk3568v3 has some known issues. Document them together with a reproducer. Signed-off-by: Marc Kleine-Budde --- drivers/net/can/rockchip/rockchip_canfd.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/net/can/rockchip/rockchip_canfd.h b/drivers/net/can/rockchip/rockchip_canfd.h index 9b446331fbd0..3dafb5e68dc5 100644 --- a/drivers/net/can/rockchip/rockchip_canfd.h +++ b/drivers/net/can/rockchip/rockchip_canfd.h @@ -370,6 +370,26 @@ */ #define RKCANFD_QUIRK_CANFD_BROKEN BIT(12) +/* known issues with rk3568v3: + * + * - Overload situation during high bus load + * To reproduce: + * host: + * # add a 2nd CAN adapter to the CAN bus + * cangen can0 -I 1 -Li -Di -p10 -g 0.3 + * cansequence -rve + * DUT: + * cangen can0 -I2 -L1 -Di -p10 -c10 -g 1 -e + * cansequence -rv -i 1 + * + * - TX starvation after repeated Bus-Off + * To reproduce: + * host: + * sleep 3 && cangen can0 -I2 -Li -Di -p10 -g 0.0 + * DUT: + * cangen can0 -I2 -Li -Di -p10 -g 0.05 + */ + enum rkcanfd_model { RKCANFD_MODEL_RK3568V2 = 0x35682, RKCANFD_MODEL_RK3568V3 = 0x35683,