PCON_ALTFUN
pecon = GPIO_SET_FUNC(pecon, 11, PCON_ALTFUN); /* SPIMISO0 */
pecon = GPIO_SET_FUNC(pecon, 12, PCON_ALTFUN); /* SPIMOSI0 */
pecon = GPIO_SET_FUNC(pecon, 13, PCON_ALTFUN); /* SPICL0 */
reg = GPIO_SET_FUNC(reg, 1, PCON_ALTFUN);
#define A PCON_ALTFUN
#define A PCON_ALTFUN