IFC Controller is not responding

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IFC Controller is not responding

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zhimingqiu
Contributor I

my cpu is B4860 and I use the the sdk-v2.0-1703; my problem is : When the system restarts,Occasionally, The system will print “**fsl,ifc-nand fff810000.nand2: Controller is not responding” continuously,the reboot log as following:

 

.................

[11:16:20][ 1.574676] nand: device found, Manufacturer ID: 0x01, Chip ID: 0xac
[11:16:20][ 1.581029] nand: AMD/Spansion S34MS04G1
[11:16:20][ 1.584950] nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
[11:16:20][ 1.593035] Bad block table found at page 262080, version 0x01
[11:16:20][ 1.599731] Bad block table found at page 262016, version 0x01
[11:16:20][ 1.606007] nand_read_bbt: bad block at 0x000011700000
[11:16:20][ 1.611573] 1 ofpart partitions found on MTD device fff800000.flash
[11:16:20][ 1.617839] Creating 1 MTD partitions on "fff800000.flash":
[11:16:20][ 1.623411] 0x000000000000-0x000020000000 : "user"
[11:16:20][ 1.629389] fsl,ifc-nand fff800000.nand: IFC NAND device at 0xfff800000, bank 1
[11:16:20][ 1.637595] nand: device found, Manufacturer ID: 0x01, Chip ID: 0xac

   fsl,ifc-nand fff810000.nand2: Controller is not responding

   fsl,ifc-nand fff810000.nand2: Controller is not responding

   fsl,ifc-nand fff810000.nand2: Controller is not responding

   fsl,ifc-nand fff810000.nand2: Controller is not responding

........................

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yipingwang
NXP TechSupport
NXP TechSupport

Hello zhiming qiu,

Please refer to the following section in drivers/mtd/nand/fsl_ifc_nand.c, please try whether increasing the value of IFC_TIMEOUT_MSECS in drivers/mtd/nand/fsl_ifc_nand.c would be helpful.

       /* wait for command complete flag or timeout */
        wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat,
                           msecs_to_jiffies(IFC_TIMEOUT_MSECS));

        /* ctrl->nand_stat will be updated from IRQ context */
        if (!ctrl->nand_stat)
                dev_err(priv->dev, "Controller is not responding\n");

Thanks,

Yiping

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zhimingqiu
Contributor I

Hello Yiping wang,

   We have increased the value of IFC_TIMEOUT_MSECS from 500 to 1000, but It's no use . From the log above, we have two nand flash chips on IFC,but only nand2 have the problem, Do you have any other suggestions?

Thanks,

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yipingwang
NXP TechSupport
NXP TechSupport

Hello zhiming qiu,

Please check IFC timing configuration defined in u-boot header file.

Please refer to https://community.nxp.com/docs/DOC-333350 .

Thanks,

Yiping

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