[U-Boot] U-Boot 2012.10 - pxa270 CPU Unknown / no turbo

Andreas Puls
2012-11-13T08:10:18Z

Hi together,

i've got another problem with latest stable U-Boot-2012.10 and a Toradex Colibri PXA270 V2.4

Uboot dosen't regonized the CPU Revision
u-boot summary screen:

U-Boot 2012.10 (Nov 12 2012 - 14:22:12)
CPU: Marvell PXA27x rev. Unknown

first lines of dmesg:
[ 0.000000] CPU: XScale-PXA270 [69054118] revision 8 (ARMv5TE), cr=0000397f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] Machine: Toradex Colibri PXA270
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] Run Mode clock: 208.00MHz (*16)
[ 0.000000] Turbo Mode clock: 520.00MHz (*2.5, inactive)
[ 0.000000] Memory clock: 104.00MHz (/2)
[ 0.000000] System bus clock: 104.00MHz

$ cat /proc/cpuinfo
Processor : XScale-PXA270 rev 8 (v5l)
BogoMIPS : 207.66
Features : swp half thumb fastmult edsp iwmmxt
CPU implementer : 0x69
CPU architecture: 5TE
CPU variant : 0x0
CPU part : 0x411
CPU revision : 8

Hardware : Toradex Colibri PXA270
Revision : 0000
Serial : 0000000000000000

With an old uboot from a third party vendor its working fine and the boot time is about half with the latest stable u-boot.

U-Boot 2010.06-dirty
CPU speed: 520000kHz; RCSR 00000001

first lines of dmesg:
[ 0.000000] CPU: XScale-PXA270 [69054118] revision 8 (ARMv5TE), cr=0000397f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] Machine: Toradex Colibri PXA270
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] Run Mode clock: 208.00MHz (*16)
[ 0.000000] Turbo Mode clock: 520.00MHz (*2.5, active)
[ 0.000000] Memory clock: 208.00MHz (/2)
[ 0.000000] System bus clock: 208.00MHz

$ cat /proc/cpuinfo
Processor : XScale-PXA270 rev 8 (v5l)
BogoMIPS : 519.37
Features : swp half thumb fastmult edsp iwmmxt
CPU implementer : 0x69
CPU architecture: 5TE
CPU variant : 0x0
CPU part : 0x411
CPU revision : 8

Hardware : Toradex Colibri PXA270
Revision : 0000
Serial : 00003600602d1400

Uboot-2012.10 was compiled with stock files and no modification.

Kind regards
Andreas