Commit 10cb54de authored Nov 23, 2011 by Greg Ungerer

m68knommu: hard set the ColdFire MBAR register on startup

The ColdFire MBAR register that holds the mapping of the peripheral region
on some ColdFire CPUs is configurable. It can be configured at some address
different to that of the bootloader that loaded the kernel. So hard set
the MBAR register mapping at kernel startup time.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>

parent 192cfd58

arch/m68k/platform/coldfire/head.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -158,6 +158,10 @@ _start:
		#if defined(CONFIG_UBOOT)
		movel %sp,_init_sp /* save initial stack pointer */
		#endif
		#ifdef CONFIG_MBAR
		movel #CONFIG_MBAR+1,%d0 /* configured MBAR address */
		movec %d0,%MBAR /* set it */
		#endif

		/*
		* Do any platform or board specific setup now. Most boards