GPIO81_UART1_DTR  328 arch/arm/mach-pxa/mfp-pxa300.h #define GPIO81_UART1_DTR	MFP_CFG_LPM(GPIO81,  AF3, FLOAT)
GPIO81_UART1_DTR  306 arch/arm/mach-pxa/mfp-pxa320.h #define GPIO81_UART1_DTR	MFP_CFG_LPM(GPIO81, AF1, FLOAT)