sh: Provide a 29/32-bit physical hint for bootloaders.
authorStuart Menefy <stuart.menefy@st.com>
Mon, 26 Nov 2007 12:29:09 +0000 (21:29 +0900)
committerPaul Mundt <lethal@linux-sh.org>
Mon, 28 Jan 2008 04:18:57 +0000 (13:18 +0900)
commit7a2eacb75946e0ebb81dfb36b50b5bec1c3cb50f
tree189d0cb22eab5fb566c77df6fff39e443aed19d0
parent80a68a43d90e2221599b507b6b26c3cba1957687
sh: Provide a 29/32-bit physical hint for bootloaders.

Shoves a magic word in to the empty_zero_page section for the
bootloader to work out whether to start the kernel in 29-bit
or 32-bit mode.

[ Renesas CPUs already take care of the initial PMB mappings entirely
  in hardware and decide on 29-bit/32-bit physical depending on which
  pin powered up the CPU, so this is mostly for ST parts. -- PFM ].

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
arch/sh/kernel/head_32.S