On Wednesday 18 June 2014 23:53:00 Fabio Estevam wrote:
> On Wed, Jun 18, 2014 at 5:20 PM, Pali Rohár <pali.rohar@gmail.com> wrote:
> > So how to read Revision and Serial number in DT based
> > kernel?
> 
> $ cat /sys/bus/soc/devices/soc0/soc_id
> i.MX6SX
> 
> $ cat /sys/bus/soc/devices/soc0/revision
> 1.0
> 
> $ cat /sys/bus/soc/devices/soc0/machine
> Freescale i.MX6 SoloX SDB Board

This does *not* working with DT based boot!

$ cat /sys/bus/soc/devices/soc0/soc_id
cat: can't open '/sys/bus/soc/devices/soc0/soc_id': No such file or directory
$ cat /sys/bus/soc/devices/soc0/revision 
ES3.1
$ cat /sys/bus/soc/devices/soc0/machine 
OMAP3430/3530


Here is output from *non* DT based boot:

# busybox cat /proc/cpuinfo 
processor       : 0
model name      : ARMv7 Processor rev 3 (v7l)
Features        : swp half thumb fastmult vfp edsp thumbee neon 
vfpv3 tls vfpd32 
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x2
CPU part        : 0xc08
CPU revision    : 3

Hardware        : Nokia RX-51 board
Revision        : 0012
Serial          : 0000000000000000


As you can see in those files are totally *different* values.

-- 
Pali Rohár
pali.rohar@gmail.com