thanks , actually I think there is still problem with innit but with this solution at least it works , but if you look at those numbers , then performance is really slow ?
DRAM: 986 MiB
MMC: sdhci@07824000: 0, sdhci@07864000: 1
*** Warning - bad CRC, using default environment
Net: Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
552 bytes read in 11 ms (48.8 KiB/s)
17478144 bytes read in 59416 ms (287.1 KiB/s)
71502 bytes read in 121 ms (576.2 KiB/s)
Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 0000000083000000, end 000000008301474d