Re: [U-Boot] [PATCH v2 09/20] spl: nand: sunxi: ensure enough time has passed after changing the column

On Thu, 22 Feb 2018 14:33:39 +0100 Miquel Raynal wrote: > When changing the column, the ONFI specification states that a minimum > time of tCCS (Change Column Setup time) must elapse between the last > address cycle is asserted on the bus and the first data cycle is > clocked. An usual value for

[U-Boot] [PATCH v2 09/20] spl: nand: sunxi: ensure enough time has passed after changing the column

When changing the column, the ONFI specification states that a minimum time of tCCS (Change Column Setup time) must elapse between the last address cycle is asserted on the bus and the first data cycle is clocked. An usual value for average NANDs is 500 nanoseconds. Round it up to 1 microsecond to