3 ata drive registers-mbar + 0x3a00, 1 ata drive device control register-mbar + 0x3a5c, Section 11.3.3 – Freescale Semiconductor MPC5200B User Manual
Page 377: Section 11.3.3, ata drive registers—mbar + 0x3a00, 1 ata drive device control register—mbar + 0x3a5c