[FS#1120] Newifi D1 - Unable to reboot

[LEDE Bugs]

The following task has a new comment added:

FS#1120 - Newifi D1 - Unable to reboot
User who did this - Mathias Kresin (mkresin)

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Okay, I know what is going on. The Newifi D1 has most likely a MX25L25635**F**. But the MX25L25635E and MX25L25635F share the same "hardware id" 0xc22019, therefore can't be distinguished and are handled as MX25L25635E by the kernel.

The MX25L25635F supports stateless 4-byte read and write (you can use SPI_NOR_4B_OPCODES). Where the MX25L25635E does **not** support any stateless 4-byte command.

As it is very likely that we have in a big targets like ramips boards with MX25L25635E and MX25L25635F, we can't enable SPI_NOR_4B_OPCODES, as it would break boards with MX25L25635E.

The only solution I can think of would be a compatible string for the MX25L25635F in the dts. But that is something that I would like to see accepted by the spi-nor kernel maintainers first.
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1120#comment4636