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m68knommu: add basic mmu-less m548x support

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Add a very basic mmu-less support for coldfire m548x family.  This is perhaps
also valid for m547x family.  The port comprises the serial, tick timer and
reboot support.  The gpio part compiles but is empty.  This gives a functional
albeit limited linux for the m548x coldfire family.  This has been tested
on a Freescale M548xEVB Lite board with a M5484 processor and the default
dbug monitor.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Philippe De Muyter
2010-09-20 13:11:11 +02:00
committed by Greg Ungerer
parent a7c681f620
commit ea49f8ffae
15 changed files with 493 additions and 5 deletions
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4
arch/m68k/include/asm/coldfire.h
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@ -32,7 +32,9 @@
*/
#define MCF_MBAR 0x10000000
#define MCF_MBAR2 0x80000000
#if defined(CONFIG_M520x)
#if defined(CONFIG_M548x)
#define MCF_IPSBAR MCF_MBAR
#elif defined(CONFIG_M520x)
#define MCF_IPSBAR 0xFC000000
#else
#define MCF_IPSBAR 0x40000000