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)