CONFIG_WIZNET_BUS_SHIFT 17 include/linux/platform_data/wiznet.h #ifndef CONFIG_WIZNET_BUS_SHIFT CONFIG_WIZNET_BUS_SHIFT 21 include/linux/platform_data/wiznet.h #define W5100_BUS_DIRECT_SIZE (0x8000 << CONFIG_WIZNET_BUS_SHIFT) CONFIG_WIZNET_BUS_SHIFT 22 include/linux/platform_data/wiznet.h #define W5300_BUS_DIRECT_SIZE (0x0400 << CONFIG_WIZNET_BUS_SHIFT)