setenv parameters for kernel over 4MB

[Petr Vanek]

i am trying to boot kernel larger then 4MB and need to see some
messages, therefore would like to edit bootenv rather then try to chase
qi with pwr button all the time:

Data Size:    4017296 Bytes = 3923.14 kB = 3.83 MB


setenv bootcmd setenv bootargs \${bootargs_base} \${mtdparts}\; nand
read.e 0x32000000 kernel 0x300000\; bootm 0x32000000

could anyone please advise what would the correct setenv parameters be? 

thank you

Petr