SPR_MII_CTRL
uint32_t val = SPR_SROM_WRITE | SPR_MII_CTRL;
uint32_t val = SPR_MII_CTRL | SPR_SROM_READ;
unsigned val = SPR_SROM_WRITE | SPR_MII_CTRL;
unsigned val = SPR_MII_CTRL | SPR_SROM_READ;