GPIO_FN_RXD4      125 arch/sh/include/cpu-sh2a/cpu/sh7264.h 	GPIO_FN_RXD4, GPIO_FN_RXD5, GPIO_FN_RXD6, GPIO_FN_RXD7,
GPIO_FN_RXD4      140 arch/sh/include/cpu-sh2a/cpu/sh7269.h 	GPIO_FN_SCK4, GPIO_FN_RXD4, GPIO_FN_TXD4,
GPIO_FN_RXD4      165 arch/sh/include/cpu-sh4/cpu/sh7757.h 	GPIO_FN_RTS4,	GPIO_FN_RXD4,	GPIO_FN_TXD4,