BRIDGE_CAUSE       28 arch/arm/mach-dove/bridge-regs.h #define BRIDGE_CAUSE		(BRIDGE_VIRT_BASE + 0x0110)
BRIDGE_CAUSE       23 arch/arm/mach-orion5x/bridge-regs.h #define BRIDGE_CAUSE		(ORION5X_BRIDGE_VIRT_BASE + 0x110)