Even the rk3568v3 has some known issues. Document them together with a
reproducer.
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
---
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,
--
2.43.0
