2 messages, 2 authors, 2012-09-27 · open the first message on its own page
From: Lauri Hintsala <hidden>
Date: 2012-09-27 05:18:58
Hi, /proc/cpuinfo contains revision and serial numbers. They are got from ATAGs when device tree is disabled. How are they managed when device tree is in use? On my imx28 based board they are zeros. Best regards, Lauri Hintsala
From: arnd@arndb.de (Arnd Bergmann)
Date: 2012-09-27 13:48:56
On Thursday 27 September 2012, Lauri Hintsala wrote:
/proc/cpuinfo contains revision and serial numbers. They are got from ATAGs when device tree is disabled. How are they managed when device tree is in use? On my imx28 based board they are zeros.
Right, we don't currently interpret a serial number from the device tree. At least IBM uses a "system-id" property in the root node for the serial number, and we could theoretically show this in /proc/cpuid, but I don't think any of the ARM systems currently fill this correctly, and it is a string property, so we can't use it interchangeably with the integer in the ATAGs. Arnd