Stefan Richter <[EMAIL PROTECTED]> writes: > AFAIK all 6306 are OHCI 1.0. I presume that currently produced 6307 are > OHCI 1.1 and maybe only first revisions of it were 1.0 --- but that's > just my speculation. I would be surprised though if it was merely a > matter of EEPROM contents.
Both VT6306 and VT6307 datasheets claim selectable OHCI 1.0/1.1. I guess they did that for compatibility or something like that. The 6307 chip allows for either I^2C (24c01 etc) or 93c64 EEPROM (there is a pin to select), while 6306 works with 93c64 only (4-wire: chip select, clock, data-in, data-out). I examined 3 machines with VT6307 using a simple home-made signal analyzer: a) using 93C46 EEPROM and OHCI 1.0 b) using 24C01A EEPROM and OHCI 1.0 c) using 24C01A EEPROM and OHCI 1.1 All 3 chips have PCI vendorID 1106 and deviceID 3044, revision is 0x80. The VT6307 chip reads the EEPROM (after reset) in the following order: ADDR ADDR a) b) c) 4-wire I^2C A 14 subsystem vendor ID B 16 subsystem device ID 10 20 103C 103C 103C values same on all machines C 18 DF03 DF03 DF03 D 1A 8040 8040 8040 E 1C 2000 2000 2000 F 1E 7300 7300 7300 11 22 0000 0000 0008 12 24 0000 0000 0000 0 0 4000 0000 1000 config_rom: offset 0E 1 2 0063 DC10 00DC (GUID) 0C 2 4 0100 FD00 0101 12 3 6 D0D4 8F75 F2D4 10 4 8 0404 0404 0404 values same on all machines 5 A 5532 5532 5532 6 C 00F8 00F8 00F8 7 E 02A2 02A2 02A2 8 10 00A1 00A1 00A1 9 12 6340 6340 6340 The only difference (not counting GUID) is at address 0x11 (0x22 for I2C). I haven't yet checked if it changes OHCI version - I of course could program the EEPROM externally but I think I'd better find how to do that from PCI side. -- Krzysztof Halasa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
