diff options
| author | Greg Ungerer <gerg@uclinux.org> | 2011-03-06 12:53:28 +0100 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2011-03-15 12:01:55 +0100 |
| commit | d4852a34e46679f0a36b7c8803eace2b9002cddc (patch) | |
| tree | 31023b7b6a81ec743100a5cab54fec3be899925c /arch/m68k | |
| parent | m68knommu: clean up definitions of ColdFire peripheral base registers (diff) | |
| download | linux-d4852a34e46679f0a36b7c8803eace2b9002cddc.tar.xz linux-d4852a34e46679f0a36b7c8803eace2b9002cddc.zip | |
m68knommu: make ColdFire internal peripheral region configurable
Most ColdFire CPUs have an internal peripheral set that can be mapped at
a user selectable address. Different ColdFire parts either use an MBAR
register of an IPSBAR register to map the peripheral region. Most boards
use the Freescale default mappings - but not all.
Make the setting of the MBAR or IPSBAR register configurable. And only make
the selection available on the appropriate ColdFire CPU types.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/include/asm/coldfire.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/m68k/include/asm/coldfire.h b/arch/m68k/include/asm/coldfire.h index f06a0a439129..98d1d25101f2 100644 --- a/arch/m68k/include/asm/coldfire.h +++ b/arch/m68k/include/asm/coldfire.h @@ -33,14 +33,17 @@ * the base address. Some have an IPSBAR register instead, and it * has slightly different rules on its size and alignment. Some * parts have fixed addresses and the internal peripherals cannot - * be relocated in the address space. + * be relocated in the CPU address space. * - * This is generally setup by the boards start up code. + * The value of MBAR or IPSBAR is config time selectable, we no + * longer hard define it here. No MBAR or IPSBAR will be defined if + * this part has a fixed peripheral address map. */ -#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) -#define MCF_IPSBAR 0x40000000 -#else -#define MCF_MBAR 0x10000000 +#ifdef CONFIG_MBAR +#define MCF_MBAR CONFIG_MBAR +#endif +#ifdef CONFIG_IPSBAR +#define MCF_IPSBAR CONFIG_IPSBAR #endif /****************************************************************************/ |