Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull the MCA deletion branch from Paul Gortmaker:
 "It was good that we could support MCA machines back in the day, but
  realistically, nobody is using them anymore.  They were mostly limited
  to 386-sx 16MHz CPU and some 486 class machines and never more than
  64MB of RAM.  Even the enthusiast hobbyist community seems to have
  dried up close to ten years ago, based on what you can find searching
  various websites dedicated to the relatively short lived hardware.

  So lets remove the support relating to CONFIG_MCA.  There is no point
  carrying this forward, wasting cycles doing routine maintenance on it;
  wasting allyesconfig build time on validating it, wasting I/O on git
  grep'ping over it, and so on."

Let's see if anybody screams.  It generally has compiled, and James
Bottomley pointed out that there was a MCA extension from NCR that
allowed for up to 4GB of memory and PPro-class machines.  So in *theory*
there may be users out there.

But even James (technically listed as a maintainer) doesn't actually
have a system, and while Alan Cox claims to have a machine in his cellar
that he offered to anybody who wants to take it off his hands, he didn't
argue for keeping MCA support either.

So we could bring it back.  But somebody had better speak up and talk
about how they have actually been using said MCA hardware with modern
kernels for us to do that.  And David already took the patch to delete
all the networking driver code (commit a5e371f61ad3: "drivers/net:
delete all code/drivers depending on CONFIG_MCA").

* 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  MCA: delete all remaining traces of microchannel bus support.
  scsi: delete the MCA specific drivers and driver code
  serial: delete the MCA specific 8250 support.
  arm: remove ability to select CONFIG_MCA

1 files changed, 0 insertions, 83 deletions

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index bea04e5d3b51..e9559782d3ec 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -808,19 +808,6 @@ config SCSI_FUTURE_DOMAIN
           To compile this driver as a module, choose M here: the
           module will be called fdomain.
 
-config SCSI_FD_MCS
-        tristate "Future Domain MCS-600/700 SCSI support"
-        depends on MCA_LEGACY && SCSI
-        ---help---
-          This is support for Future Domain MCS 600/700 MCA SCSI adapters.
-          Some PS/2 computers are equipped with IBM Fast SCSI Adapter/A which
-          is identical to the MCS 700 and hence also supported by this driver.
-          This driver also supports the Reply SB16/SCSI card (the SCSI part).
-          It supports multiple adapters in the same system.
-
-          To compile this driver as a module, choose M here: the
-          module will be called fd_mcs.
-
 config SCSI_GDTH
         tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support"
         depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
@@ -890,76 +877,6 @@ config SCSI_GENERIC_NCR53C400
           not detect your card.  See the file
           <file:Documentation/scsi/g_NCR5380.txt> for details.
 
-config SCSI_IBMMCA
-        tristate "IBMMCA SCSI support"
-        depends on MCA && SCSI
-        ---help---
-          This is support for the IBM SCSI adapter found in many of the PS/2
-          series computers.  These machines have an MCA bus, so you need to
-          answer Y to "MCA support" as well and read
-          <file:Documentation/mca.txt>.
-
-          If the adapter isn't found during boot (a common problem for models
-          56, 57, 76, and 77) you'll need to use the 'ibmmcascsi=<pun>' kernel
-          option, where <pun> is the id of the SCSI subsystem (usually 7, but
-          if that doesn't work check your reference diskette).  Owners of
-          model 95 with a LED-matrix-display can in addition activate some
-          activity info like under OS/2, but more informative, by setting
-          'ibmmcascsi=display' as an additional kernel parameter.  Try "man
-          bootparam" or see the documentation of your boot loader about how to
-          pass options to the kernel.
-
-          To compile this driver as a module, choose M here: the
-          module will be called ibmmca.
-
-config IBMMCA_SCSI_ORDER_STANDARD
-        bool "Standard SCSI-order"
-        depends on SCSI_IBMMCA
-        ---help---
-          In the PC-world and in most modern SCSI-BIOS-setups, SCSI-hard disks
-          are assigned to the drive letters, starting with the lowest SCSI-id
-          (physical number -- pun) to be drive C:, as seen from DOS and
-          similar operating systems. When looking into papers describing the
-          ANSI-SCSI-standard, this assignment of drives appears to be wrong.
-          The SCSI-standard follows a hardware-hierarchy which says that id 7
-          has the highest priority and id 0 the lowest. Therefore, the host
-          adapters are still today everywhere placed as SCSI-id 7 by default.
-          In the SCSI-standard, the drive letters express the priority of the
-          disk. C: should be the hard disk, or a partition on it, with the
-          highest priority. This must therefore be the disk with the highest
-          SCSI-id (e.g. 6) and not the one with the lowest! IBM-BIOS kept the
-          original definition of the SCSI-standard as also industrial- and
-          process-control-machines, like VME-CPUs running under realtime-OSes
-          (e.g. LynxOS, OS9) do.
-
-          If you like to run Linux on your MCA-machine with the same
-          assignment of hard disks as seen from e.g. DOS or OS/2 on your
-          machine, which is in addition conformant to the SCSI-standard, you
-          must say Y here. This is also necessary for MCA-Linux users who want
-          to keep downward compatibility to older releases of the
-          IBM-MCA-SCSI-driver (older than driver-release 2.00 and older than
-          June 1997).
-
-          If you like to have the lowest SCSI-id assigned as drive C:, as
-          modern SCSI-BIOSes do, which does not conform to the standard, but
-          is widespread and common in the PC-world of today, you must say N
-          here. If unsure, say Y.
-
-config IBMMCA_SCSI_DEV_RESET
-        bool "Reset SCSI-devices at boottime"
-        depends on SCSI_IBMMCA
-        ---help---
-          By default, SCSI-devices are reset when the machine is powered on.
-          However, some devices exist, like special-control-devices,
-          SCSI-CNC-machines, SCSI-printer or scanners of older type, that do
-          not reset when switched on. If you say Y here, each device connected
-          to your SCSI-bus will be issued a reset-command after it has been
-          probed, while the kernel is booting. This may cause problems with
-          more modern devices, like hard disks, which do not appreciate these
-          reset commands, and can cause your system to hang. So say Y only if
-          you know that one of your older devices needs it; N is the safe
-          answer.
-
 config SCSI_IPS
         tristate "IBM ServeRAID support"
         depends on PCI && SCSI