It is committed. Thanks, Ian. -Andrew
On Tue, Sep 23, 2003 at 03:35:53PM +0100, Ian Smith wrote: > I've been working on bringing up Linuxbios on a board which is based > closely on the EPIA-M and I think I may have found a bug in the DDR > SDRAM init code in src/northbridge/via/vt8623/raminit.inc > > The VIA Northbridge data sheet says that as part of the DDR init > sequence you need to read from specific addresses on the bank but I > think the registers to do these reads are not being set up properly > which can cause the RAM test to fail. > > I adjusted a number of register settings to be the same as a sample > Award Bios but it made no difference so I took a closer look at the DDR > and found that %ecx was being set up with the memory location to read > from instead of %esi. > > The diff for my fix is as follows: > > Index: src/northbridge/via/vt8623/raminit.inc > =================================================================== > RCS file: > /cvsroot/freebios/freebios/src/northbridge/via/vt8623/raminit.inc,v > retrieving revision 1.5 > diff -r1.5 raminit.inc > 85c85 > < movl $0x2000, %ecx > --- > > movl $0x2000, %esi /* IAS changed from ecx to esi */ > 89c89 > < movl $0x800, %ecx > --- > > movl $0x800, %esi /* IAS changed from ecx to esi */ > 119c119 > < movl $0x350, %ecx > --- > > movl $0x350, %esi /* IAS changed from ecx to esi */ > > What is odd is that the original code works fine on the Via reference > board (same design as EPIA-M) but when I try to run it on my customer > board it fails until I make these changes. > > Does anyone with more knowledge than me of the Via chipsets have any > ideas about this? > > Cheers > > Ian > > > _______________________________________________ > Linuxbios mailing list > [EMAIL PROTECTED] > http://www.clustermatic.org/mailman/listinfo/linuxbios -- Andrew Ip Email: [EMAIL PROTECTED] Tel: (852) 2542 2046 Fax: (852) 2542 2036 Mobile: (852) 9201 9866 Cwlinux Limited Unit 202B 2/F Lai Cheong Factory Building, 479-479A Castle Peak Road, Lai Chi Kok, Kowloon, Hong Kong. For public pgp key, please obtain it from http://www.keyserver.net/en. _______________________________________________ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
