On Thu, 10 Jul 2008, Jens Gehrlein wrote: > Wolfgang Denk schrieb: > > In message <[EMAIL PROTECTED]> you wrote: > >> The TQMA31, as well as the mx32ads use the General Purpose Timer 1, > >> which is feeded by a 32768 clock (possibly imx31_litekit and > >> imx31_phycore with 32000 Hz? I don't know.). The prescale divider can > >> only be an integer. 32768/1000 = non-integer. > > > > I think other architectures hav / had similar issues. See for example > > the MIPS fixes that were added some time ago. > > I'll take a look. > > > >> Currently, I see only one way to solve this: > >> 1. Patch the common file cpu/arm1136/mx31/interrupts.c, function > >> interrupt_init(), so that the prescaler divides by 33. > >> Alternatively, also make the divider a board specific define. > >> 2. Patch all mx31 board config header files with CFG_HZ 1000. > >> 3. All mx31 boards have to be tested. > > > > Sounds like a plan. > > What do you mean? > It's just a proposal and I like to read comments from others, especially > those, who wrote this code.
Ok, let's fix it then. Unfortunately, I don't think I will have time for this _soon_, but I definitely will try to convret all i.MX31 platforms to CFG_HZ == 1000 ASAP. Jean-Christophe, what would you prefer, first accept patches as they are (i.e., with CFG_HZ ~= 1000) and then fix all i.MX31 platforms or first fix the existing boards and then commit an updated patch with CFG_HZ == 1000? Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED] ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
