Linux/AM6548: Dhrystone result

Hi Yordan,

Thank you for your information. Do you think my AM654x is operating at 800 MHz?

I tried Dhystone several times and I also saw 6.1 points. This is exactly 2 times the table of 3.05 you presented.

Please check the following file.
/usr/bin/runDhrystone

echo ""
echo "Dhrystone running ..."
echo ""
echo "Execution time 10 seconds or longer depending on your CPU clock speed"
if test -e /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq; then
CPUFREQ=`cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq`
else if test -e /proc/cpuinfo; then
        a=(`cat /proc/cpuinfo | grep Bogo | awk '{print $3}'`)
        b=`echo "($a+5)/10*10" | bc`
        let CPUFREQ=b*1000
    fi
fi
dhrystone 200000000 $CPUFREQ
echo ""

Since the following directories are not available during target operation, the CPU speed is obtained from BogoMIPS.
/sys/devices/system/cpu/cpu0/cpufreq

I checked cpuinfo.

root@am65xx-evm:~# cat /proc/cpuinfo

processor : 0
BogoMIPS : 400.00
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd03
CPU revision : 4

I don't think the CPU speed from BogoMIPS is correct. However, I could not find the command to check CPU speed from u-boot help.

I also referred to the following threads.
https://e2e.ti.com/support/processors/f/791/t/711230

Please give me some advice.

Regards,
Kzk