V3_MAIL_DATA
writeb(0xaa, v3->base + V3_MAIL_DATA);
writeb(0x55, v3->base + V3_MAIL_DATA + 4);
} while (readb(v3->base + V3_MAIL_DATA) != 0xaa &&
readb(v3->base + V3_MAIL_DATA) != 0x55);