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U-boot Bank Switch

Question asked by Xiaojun He on Nov 6, 2017
Latest reply on Nov 23, 2017 by Xiaojun He

On new LS1021ATWR board, U-boot can start up on NOR bank0. With jump setting(Bank select, UART select) change to bank1 setting, it can start up u-boot on bank1 after power cycle.

I noticed there is "bank-switch" command I supposed it was intend to switch from bank 0 to bank 1 without power cycle.

I did this test, enter Bank 0 u-boot, then enter "bank_switch 1" to attempted to switch bank from 0 to 1 without power power cycle, but it seems not be as I expected.

I don't know what the "bank_switch n" command use senario, could you please intruduce how to use this command?

 

Thanks,

Xiaojun

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