1 files changed, 0 insertions, 50 deletions
diff --git a/Documentation/x86/usb-legacy-support.rst b/Documentation/x86/usb-legacy-support.rst
deleted file mode 100644
index e01c08b7c981..000000000000
--- a/Documentation/x86/usb-legacy-support.rst
+++ /dev/null
@@ -1,50 +0,0 @@
-
-.. SPDX-License-Identifier: GPL-2.0
-
-==================
-USB Legacy support
-==================
-
-:Author: Vojtech Pavlik <vojtech@suse.cz>, January 2004
-
-
-Also known as "USB Keyboard" or "USB Mouse support" in the BIOS Setup is a
-feature that allows one to use the USB mouse and keyboard as if they were
-their classic PS/2 counterparts.  This means one can use an USB keyboard to
-type in LILO for example.
-
-It has several drawbacks, though:
-
-1) On some machines, the emulated PS/2 mouse takes over even when no USB
-   mouse is present and a real PS/2 mouse is present.  In that case the extra
-   features (wheel, extra buttons, touchpad mode) of the real PS/2 mouse may
-   not be available.
-
-2) If CONFIG_HIGHMEM64G is enabled, the PS/2 mouse emulation can cause
-   system crashes, because the SMM BIOS is not expecting to be in PAE mode.
-   The Intel E7505 is a typical machine where this happens.
-
-3) If AMD64 64-bit mode is enabled, again system crashes often happen,
-   because the SMM BIOS isn't expecting the CPU to be in 64-bit mode.  The
-   BIOS manufacturers only test with Windows, and Windows doesn't do 64-bit
-   yet.
-
-Solutions:
-
-Problem 1)
-  can be solved by loading the USB drivers prior to loading the
-  PS/2 mouse driver. Since the PS/2 mouse driver is in 2.6 compiled into
-  the kernel unconditionally, this means the USB drivers need to be
-  compiled-in, too.
-
-Problem 2)
-  can currently only be solved by either disabling HIGHMEM64G
-  in the kernel config or USB Legacy support in the BIOS. A BIOS update
-  could help, but so far no such update exists.
-
-Problem 3)
-  is usually fixed by a BIOS update. Check the board
-  manufacturers web site. If an update is not available, disable USB
-  Legacy support in the BIOS. If this alone doesn't help, try also adding
-  idle=poll on the kernel command line. The BIOS may be entering the SMM
-  on the HLT instruction as well.