BANK_BIST
gxl_writereg(sc, BANK_BIST, BIST_PLL_CTRL, 0x5);
gxl_writereg(sc, BANK_BIST, BIST_PLL_DIV1, 0x029a);
gxl_writereg(sc, BANK_BIST, BIST_PLL_DIV0, 0xaaaa);