Linus Walleij 0af2de76a2 ARM: config: Refresh IXP4xx config after multiplatform
After converting to multiplatform the old IXP4xx defconfig
doesn't even activate the ethernet driver anymore, we need
to refresh this thoroughly.

- Drop options that ARCH_MULTI_V5 selects for us.
- Some options moved around because of multiplatform and
  because generic Kconfig movements.
- Drop all MACH_* that do not exist anymore.
- Compress the kernel and initramfs with XZ as the memory
  is often limited for these machines.
- Make sure IXP4XX_QMGR and IXP4XX_NPE is selected.
- Make sure the MTD_PHYSMAP_IXP4XX is selected and not
  the old MTD_IXP4XX (will be deleted).
- Activate CRYPTO_DEV_IXP4XX
- Add some very basic default drivers such as AT24 EEPROMs
  used in many routers.
- Add some kernel configs needed to bring up OpenWrt
  which is the only userspace for these devices:
  CGROUPS, DEVTMPFS, INOTIFY_USER, SIGNALFD, TIMERFD,
  EPOLL, OVERLAY_FS and SQUASHFS.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Imre Kaloz <kaloz@openwrt.org>
Link: https://lore.kernel.org/r/20220407204502.2470560-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-03 14:43:42 +02:00
2022-04-01 11:46:09 -07:00
2022-04-03 14:08:21 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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