[flashrom] HPT360/HPT370 ATA controller flash interface

[Michael Karcher]

Hello flashrom developers,

(obtained from reversing the vendor update tool)

Supported IDs (names stolen from pci.ids, the double 372N is not my
fault):
  1103:0004 HPT366/368/370/370A/372/372N
  1103:0005 HPT372A/372N
  1103:0006 HPT302/302N

Flash enable at 58L.24 (setpci syntax), set to enable flash writing
Flash interface select at 70B, 1 = mmapped in ROM addr space,
                               0 = io mapped

IO-mapped access:
  (BAR4)+0x90 -> DWORD Address
  (BAR4)+0x94 -> BYTE/WORD/DWORD data access.

memmapped chip access was not shown in the tool, but the flash disable
code disables the extension ROM BAR. So probably its just mmapped
read/write in that area. Maximum Chip size supported by the vendor tool:
128K

Regards,
  Michael Karcher