• Scott Wood's avatar
    powerpc/mpc85xx: Don't relocate exception vectors · 96d2bb95
    Scott Wood authored
    Booke does not require exception vectors to be located at address zero.
    U-Boot was doing so anyway, simply because that's how it had been done
    on other PPC.  The downside of this is that once the OS is loaded to
    address zero, the exception vectors have been overwritten -- which
    makes it difficult to diagnose a crash that happens after that point.
    
    The IVOR setup and trap entry code is simplified somewhat as a result.
    
    Also, there is no longer a need to align individual exceptions on 0x100
    byte boundaries.
    Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
    Reviewed-by: default avatarYork Sun <yorksun@freescale.com>
    96d2bb95
mpc85xx.h 1.84 KB