)
Values for Cirrus Logic video controller type:
 0000h	no extended alternate select support
 0001h	reserved
 0002h	CL-GD510/520
 0003h	CL-GD610/620
 0004h	CL-GD5320
 0005h	CL-GD6410
 0006h	CL-GD5410
 0007h	CL-GD6420
 0008h	CL-GD6412
 0010h	CL-GD5401
 0011h	CL-GD5402
 0012h	CL-GD5420
 0013h	CL-GD5422
 0014h	CL-GD5424
 0015h	CL-GD5426
 0016h	CL-GD5420r1
 0017h	CL-GD5402r1
 0018h	CL-GD5428
 0019h	CL-GD5429
 0020h	CL-GD6205/15/25
 0021h	CL-GD6215
 0022h	CL-GD6225
 0023h	CL-GD6235
 0024h	CL-GD6245
 0030h	CL-GD5432
 0031h	CL-GD5434
 0032h	CL-GD5430
 0033h	CL-GD5434 rev. E and F
 0035h	CL-GD5440
 0036h	CL-GD5436
 0039h	CL-GD5446
 0040h	CL-GD6440
 0041h	CL-GD7542 (Nordic)
 0042h	CL-GD7543 (Viking)
 0043h	CL-GD7541 (Nordic Lite)
 0050h	CL-GD5452 (Northstar)
 0052h	CL-GD5452 (Northstar) ???
SeeAlso: #00732,#00743