Re: [linux-sunxi] Re: [RFC PATCH v2 09/14] mtd: nand: add sunxi NFCdt bindings doc

[Henrik Nordström]

ons 2014-01-29 klockan 11:11 -0600 skrev Rob Herring:

> Isn't allwinner,rb implied by a lack of rb-gpios property. Or no R/B
> pin is an option? If so, don't you need some fixed time delay
> properties like max erase time?
> 
> rb-gpios could be added to the generic nand binding as well.

The Allwinner NAND controller have dedicated RB pins when NAND is
enabled, only MUXed with other functions when NAND is not enabled.

Leaving RB unconnected is not a valid hardware configuration. The
controller internal timing engine depends on being able to sense RB to
sequence NAND commands properly.

Regards
Henrik

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/