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Some board vendors actually changed the loader to expect the chip
to come up in 4-address-mode and flipped the ADP bit in the flash
chip's configuration register which makes it come up in 4-address-mode.
Hence it doesn't make sense to avoid switching to 4-address-mode on
those boards but the opposite as otherwise reboot hangs eg. on the
WrtNode2 boards. Fix this by checking the ADP register and only using
SPI_NOR_4B_READ_OP on chips which have ADP==0 (come up in 3-byte mode).
See also datasheet section 7.1.11 Power Up Address Mode (ADP)
Fixes:
|
6 years ago | |
---|---|---|
.. | ||
base-files | 6 years ago | |
dts | 6 years ago | |
files-4.14/drivers | 6 years ago | |
image | 6 years ago | |
mt76x8 | 6 years ago | |
mt7620 | 6 years ago | |
mt7621 | 6 years ago | |
patches-4.14 | 6 years ago | |
rt288x | 6 years ago | |
rt305x | 6 years ago | |
rt3883 | 6 years ago | |
Makefile | 6 years ago | |
modules.mk | 6 years ago |