[PATCH] mtd: rawnand: davinci: Reduce polling interval in NAND_OP_WAITRDY_INSTR

Bastien Curutchet bastien.curutchet at bootlin.com
Thu Dec 19 06:55:34 PST 2024


Hi all,

On 12/19/24 3:25 PM, Bastien Curutchet wrote:
> For each NAND_OP_WAITRDY_INSTR operation, the NANDFSR register is
> polled only once every 100 us to check for the EMA_WAIT pin. This
> isn't frequent enough and causes delays in NAND accesses.
> 
> Set the polling interval to 0s. It increases the page read speed
> reported by flash_speed by ~40% (~30% on page writes).
> 
> ---
> Signed-off-by: Bastien Curutchet <bastien.curutchet at bootlin.com>

I just realized that this SOB should be above the '---'. Sorry about 
that, I'll send a V2 right away.

Best regards,
Bastien



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