[U-Boot] pata support in u-boot

[Lv Terry-R65388]

Hi,
 
    I'm trying to add our ATA driver to u-boot.
 
    But it seems that now u-boot only supports SATA.
 
    ATA is mixed with ide in cmd_ide.c.
 
    There is no ata common interface in include.
 
    Is this suitable?
 
Yours
Terry