From: Greg Ungerer <[email protected]> Disbale the CPU cache really early in the ColdFire startup code. We set up some variables for RAM sizing and we want to make they stick in RAM.
Signed-off-by: Alexander Stein <[email protected]> Signed-off-by: Greg Ungerer <[email protected]> --- arch/m68k/platform/coldfire/head.S | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/m68k/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S index c334838..49666b4 100644 --- a/arch/m68k/platform/coldfire/head.S +++ b/arch/m68k/platform/coldfire/head.S @@ -143,6 +143,9 @@ __HEAD _start: nop /* filler */ movew #0x2700, %sr /* no interrupts */ + movel #CACHE_INIT,%d0 /* disable cache */ + movec %d0,%CACR + nop #if defined(CONFIG_UBOOT) movel %sp,_init_sp /* save initial stack pointer */ #endif @@ -176,9 +179,6 @@ _start: * it is very similar. Define the exact settings in the headers * then the code here is the same for all. */ - movel #CACHE_INIT,%d0 /* invalidate whole cache */ - movec %d0,%CACR - nop movel #ACR0_MODE,%d0 /* set RAM region for caching */ movec %d0,%ACR0 movel #ACR1_MODE,%d0 /* anything else to cache? */ -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
