PCI_IDE_SEL_ADDR_BLOCK_SIZE
#define PCI_IDE_SEL_ADDR_1(x) (20 + (x) * PCI_IDE_SEL_ADDR_BLOCK_SIZE)
#define PCI_IDE_SEL_ADDR_2(x) (24 + (x) * PCI_IDE_SEL_ADDR_BLOCK_SIZE)
#define PCI_IDE_SEL_ADDR_3(x) (28 + (x) * PCI_IDE_SEL_ADDR_BLOCK_SIZE)
#define PCI_IDE_SEL_BLOCK_SIZE(nr_assoc) (20 + PCI_IDE_SEL_ADDR_BLOCK_SIZE * (nr_assoc))