DCR_SDR0_SRST1
srst = mfsdr(DCR_SDR0_SRST1);
mtsdr(DCR_SDR0_SRST1, srst | SDR0_SRST1_USBHOST);
mtsdr(DCR_SDR0_SRST1, srst & ~SDR0_SRST1_USBHOST);
mtsdr(DCR_SDR0_SRST1, SDR0_SRST1_SATA_RESET);
mtsdr(DCR_SDR0_SRST1, 0);