resetting m25p80 on reboot

DISCUSSION John Crispin 1 participant 1 message Jul 9, 2015 Memory technology devices (MTD)

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John Crispin

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2015-07-09 05:59 UTC #0 lore raw

Hi,

there are some SoCs made by MTK/Ralink, where the bootrom has problems when the flash chip has 4 byte addressing enabled. This will make the unit not boot properly after reboot was called. The flash chip needs a reset prior to working. Paul has sent a patch to our ML which looks good to me but i wanted someone that knows more about m25p80 to look at it before i merge it into OpenWrt and send it upstream to linux-mtd the patch in question can be found here

-> http://patchwork.ozlabs.org/patch/492878/

I am not subscribed to linux-mtd so please CC me on replies.

thanks in advance,
John