The following devices have a Winbond W25Q256FV flash chip,
which does not have the RESET pin enabled by default,
and otherwise would require setting a bit in a status register.
Before moving to Linux 5.4, we had the patch:
0053-mtd-spi-nor-add-w25q256-3b-mode-switch.patch
which kept specific flash chips with explicit 3-byte and 4-byte address modes
to stay in 3-byte address mode while idle (after an erase or write)
by using a custom flag SPI_NOR_4B_READ_OP that was part of the patch.
this was obsoleted by the patch:
481-mtd-spi-nor-rework-broken-flash-reset-support.patch
which uses the newer upstream flag SNOR_F_BROKEN_RESET
for devices with a flash chip that cannot be hardware reset with RESET pin
and therefore must be left in 3-byte address mode when idle.
The new patch requires that the DTS of affected devices
have the property "broken-flash-reset", which was not yet added for most of them.
This commit adds the property for remaining affected devices in ramips target,
specifically because of the flash chip model.
However, it is possible that there are other devices
where the flash chip uses an explicit 4-byte address mode
and the RESET pin is not connected to the SOC on the board,
and those DTS would also need this property.
Ref: 22d982ea00 ("ramips: add support for switching between 3-byte and 4-byte addressing")
Ref: dfa521f129 ("generic: spi-nor: rework broken-flash-reset")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
[pepe2k@gmail.com: backported to 21.02]
Fixes: #9655, #9636, #9547
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
(backported from commit 74516f4357)
Upstream pinctrl driver in drivers/staging uses
groups/function/ralink,num-gpios instead of
ralink,group/ralink,function/ralink,nr-gpio
Replace these properties in dts as well as the pinctrl driver in
patches-4.14.
This commit is created using:
sed -i 's/ralink,group/groups/g'
sed -i 's/ralink,function/function/g'
sed -i 's/ralink,nr-gpio/ralink,num-gpios/g'
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
The node pinctrl0 is already set up in the SOC DTSI files, but
defined again as member of pinctrl in most of the device DTS(I)
files. This patch removes this redundancy for the entire ramips
target.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit makes the following changes to the WE1026 DTS-files:
* The parts that are unique to the -5G-version (LED and 5GHz wifi)
are moved to a separate file, so that WE1026.dtsi can be referenced also
by the DTS for the -H version.
* Use the generic "flash"-name for the spi-nor node.
* Add label MAC.
All changes have been tested on the WE1026-5G-16M and work fine. I.e.,
the device works as before the DTS-changes.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Mathias Kresin <dev@kresin.me>
Acked-by: Alex Maclean <monkeh@monkeh.net>
Acked-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Acked-by: Petr Štetiar <ynezz@true.cz>
[minor style fixes, rebased onto base-files split, remove obsolete
gpio-keys comment]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
