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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-99b12 X-Developer-Signature: v=1; a=openpgp-sha256; l=1219; i=mkl@pengutronix.de; h=from:subject:message-id; bh=L9Nl19jQ0rlZqgQunUAoISdoYkyHWfdsG+IX7vgSjoA=; b=owEBbQGS/pANAwAKASg4oj56LbxvAcsmYgBm0hzhwYzVlZ5wgnyOhhah5zZi7aL0R3v/KCscT //i1+bUVYGJATMEAAEKAB0WIQRQQLqG4LYE3Sm8Pl8oOKI+ei28bwUCZtIc4QAKCRAoOKI+ei28 bzgDB/95axjXMh3uhwLCVlXLIf/5saGkNkJg7v8r5K6zFqEcBDYC4ezeGNsieKXdZypu6o3ShZb zS7fkisKxMrhMHi+Wxd9FL8zbh2QllzbzVUtI0h1sLQptrcCT/pA8CRU1RgOndN8UNEb6XU6AOY dVU6jGkZeeVMCmM5uJ1Ni1Ec3a0UYdWk7RXHhCWy2AYbrNxsvxXYW5pAY4FA2td01CfmXIAHHJb Yzq6iK5VtkGLzSyp94y4FpV8PC6EaA3Id15mtbTwWidbaPvx448qPLpemWWy2BUpqBa6Jk9sl4C TDOkcS625UYVwPZykUbKY3IuxW3LZ+94Agb4C0ns6V3RYzE2 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-20240830_202721_741100_AD4791D7 X-CRM114-Status: GOOD ( 10.97 ) 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,