Hi, On Wed, 2022-06-15 at 21:00 +0800, Peng Fan (OSS) wrote: > From: Peng Fan <peng.fan@xxxxxxx> > > i.MX generic MU supports MU-A/B reset feature. > > When stop/start remotecore, MU is not reset. So when Linux stop > remotecore, the MU-B side BCR may contain valid configuration, > because MU-B is not reset. So when linux start Mcore > again and notify Mcore, Mcore is not ready to handle MU interrupt > and cause issues. So need reset MU when stop Mcore. > > Signed-off-by: Peng Fan <peng.fan@xxxxxxx> It looks like this patch causes i.MX8qxp MEK boot failure with v6.0- rc1. After reverting commit 82ab513baed5895c8b0e991557a12fd38d5f25f0, it boots ok. There are a lot imx_mu and imx-scu error logs: ----------------------------8<------------------------------------ [ 1.166567] imx-scu system-controller: RPC send msg timeout [ 1.171843] imx_scu_soc_id: get soc info failed, ret -110 [ 1.177221] imx-scu system-controller: failed to initialize SoC info: -22 [ 1.184019] imx-scu system-controller: NXP i.MX SCU Initialized [ 1.230605] imx-scu system-controller: RPC send msg timeout [ 1.270559] imx-scu system-controller: RPC send msg timeout [ 1.310561] imx-scu system-controller: RPC send msg timeout [ 1.350560] imx-scu system-controller: RPC send msg timeout [ 1.390560] imx-scu system-controller: RPC send msg timeout [ 1.430561] imx-scu system-controller: RPC send msg timeout [ 1.470559] imx-scu system-controller: RPC send msg timeout [ 1.510559] imx-scu system-controller: RPC send msg timeout [ 1.550559] imx-scu system-controller: RPC send msg timeout [ 1.590559] imx-scu system-controller: RPC send msg timeout [ 1.630561] imx-scu system-controller: RPC send msg timeout [ 1.670558] imx-scu system-controller: RPC send msg timeout [ 1.710559] imx-scu system-controller: RPC send msg timeout [ 1.750558] imx-scu system-controller: RPC send msg timeout [ 1.790559] imx-scu system-controller: RPC send msg timeout [ 1.830562] imx-scu system-controller: RPC send msg timeout [ 1.870559] imx-scu system-controller: RPC send msg timeout [ 1.910559] imx-scu system-controller: RPC send msg timeout [ 1.950561] imx-scu system-controller: RPC send msg timeout [ 1.990592] imx-scu system-controller: RPC send msg timeout [ 1.995838] imx_mu 5d1c0000.mailbox: Try increasing MBOX_TX_QUEUE_LEN [ 2.002262] imx-scu system-controller: RPC send msg failed: -105 [ 2.008260] imx_mu 5d1c0000.mailbox: Try increasing MBOX_TX_QUEUE_LEN [ 2.014682] imx-scu system-controller: RPC send msg failed: -105 [ 2.020681] imx_mu 5d1c0000.mailbox: Try increasing MBOX_TX_QUEUE_LEN [ 2.027103] imx-scu system-controller: RPC send msg failed: -105 [ 2.033105] imx_mu 5d1c0000.mailbox: Try increasing MBOX_TX_QUEUE_LEN [ 2.039526] imx-scu system-controller: RPC send msg failed: -105 [ 2.045526] imx_mu 5d1c0000.mailbox: Try increasing MBOX_TX_QUEUE_LEN [ 2.051949] imx-scu system-controller: RPC send msg failed: -105 ----------------------------8<------------------------------------ Regards, Liu Ying
