Hi,
On Wed, Jan 14, 2009 at 9:36 PM, Peter Stuge <[email protected]> wrote: > Hi, > > Fabrício Ceolin wrote: > > We are trying to make flashrom work on > > > http://www.ecs.com.tw/ECSWebSite/Products/ProductsDetail.aspx?detailid=858&CategoryID=1&DetailName=Specification&MenuID=1&LanID=0 > > Chipset MCP73 / SIP chipset Macronix MX25L8005. > > > > We made modifications using a enable_flash_mcp55 function, but > > does't work. > .. > > > How can I do works? > > > > Are there any hints? > > It's not that easy. > > First you have to figure out what chip is the SPI bus master. I > suggest powering off the board and using a continuity tester to check > if most flash chip pins are connected to the superio chip. (The > superio is the chip between the PCI slots and the CMOS battery. It > may have an AMI BIOS sticker on it, just peel that off and look at > what is etched underneath.) We made these tests. There are a superio, but the bios chip isn't connect to it. The bios chip is directly connected to the chipset MCP73. So, I need to the datasheet of MCP73 to implement it. Anybody have a MCP55 spec? Maybe is likely! Thanks! > > > If there are no connections you're out of luck, because then the > MCP73 is the SPI bus master and there's little to no chance of > getting documentation from NVIDIA. > > However, if the superio is the SPI bus master it should be possible > to get flashrom working. In this case please check which part number > your superio chip has. I found no good enough photos of the board > online to tell what it is, but the logo looks a little like Winbond. > I have a patch for Winbond superio SPI master support but it's a > little old by now and probably doesn't apply cleanly. It would have > to be fixed up, but it worked fine when I wrote it. > > http://stuge.se/fr.wbsio_spi.d201gly.patch > > Very likely you will also need a board enable routine for this > mainboard. > > > //Peter > > -- > coreboot mailing list: [email protected] > http://www.coreboot.org/mailman/listinfo/coreboot -- Fabrício Ceolin ulevel.com Diretor Executivo
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