On 06/14/2011 06:31 PM, Fabio Estevam wrote: > MX31 Reference Manual states the following possible values for the silicon > revision: >
Hi Fabio, > However it is possible to find some pre-production silicon on some old > hardware, such as MX31ADS > that shows srev = 0x20. > > The following message is the currently displayed on such MX31ADS board: > > CPU: Freescale i.MX31 rev 2.0 unknown at 531 MHz.Reset cause: WDOG > > With this patch we see a better message like: > > CPU: Freescale i.MX31 rev 0.0 (unknown revision) at 531 MHz.Reset cause: > WDOG Why is the new output better as we have now ? You drop the output of the srev register, and then we cannot get which strange silicon version is running without patching the code. > if (srev == mx31_cpu_type[i].srev) > return mx31_cpu_type[i].v; > > - return srev | 0x8000; > + return 0x8000; IMHO in the case the revision is not recognized, it is better to print the value of the srev register, as it is done now. This can be a useful information and printing a fixed "0.0" version does not say anything about the processor. Best regards, Stefano Babic -- ===================================================================== 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: off...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
