AM335X - No NAND device found on SDK8.0 Kernel

Dears,

We are bring up the board, but it having a No NAND device found issue on kernel.

To dump the uboot GPMC register is different with the kernel,

uboot:

00000800 001e1e00 001e1e00 16051807    ................
50000070: 00151e1e 16000f80 00000f48 ffffffff

kernel:

GPMC_CONFIG1_0:800
GPMC_CONFIG2_0:30300
GPMC_CONFIG3_0:22030211
GPMC_CONFIG4_0:3006310
GPMC_CONFIG5_0:40505
GPMC_CONFIG6_0:83000000
GPMC_CONFIG7_0:F41

dts setting is SDK8.0 default value

nand-bus-width = <8>;
gpmc,device-width = <1>;
gpmc,sync-clk-ps = <0>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <44>;
gpmc,cs-wr-off-ns = <44>;
gpmc,adv-on-ns = <6>;
gpmc,adv-rd-off-ns = <34>;
gpmc,adv-wr-off-ns = <44>;
gpmc,we-on-ns = <0>;
gpmc,we-off-ns = <40>;
gpmc,oe-on-ns = <0>;
gpmc,oe-off-ns = <54>;
gpmc,access-ns = <64>;
gpmc,rd-cycle-ns = <82>;
gpmc,wr-cycle-ns = <82>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;

error message:
[    2.287199] nand: No NAND device found
[    2.290981] nand device scan failed, may be bus-width mismatch
.
.
[    2.858882] UBIFS error (pid 1): ubifs_mount: cannot open "ubi0:rootfs", error -19
[    2.866630] VFS: Cannot open root device "ubi0:rootfs" or unknown-block(0,0): error -19
[    2.874756] Please append a correct "root=" boot option; here are the available partitions:
[    2.883272] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Please give me a favor for the issue, let me know how to do, thanks.

B.R.
Joe