#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
return in_be32(addr);
#elif defined(CONFIG_SYS_BIG_ENDIAN)
- return readb(addr + (1 << reg_shift) - 1);
+ return readb(addr + (1 << shift) - 1);
#else
return readb(addr);
#endif