PLL_SYS_SEC
sec = HREAD4(sc, base + PLL_SYS_SEC - PLL_SYS_CS);
sec = HREAD4(sc, base + PLL_SYS_SEC - PLL_SYS_CS);
HWRITE4(sc, base + PLL_SYS_SEC - PLL_SYS_CS, sec | PLL_SEC_RST);
HWRITE4(sc, base + PLL_SYS_SEC - PLL_SYS_CS, sec);