Why does Rasbian report the Cortex-A72 CPU of the Raspberry 4 as ARMv7?

Question

I run lscpu on a Raspberry Pi 4:

Architecture:        armv7l
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
Vendor ID:           ARM
Model:               3
Model name:          Cortex-A72
Stepping:            r0p3
CPU max MHz:         1500.0000
CPU min MHz:         600.0000
BogoMIPS:            108.00
Flags:               half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

It says that it is a ARMv7 architecture, although Wikipedia says it should be a ARMv8 architecture.

What is the reason for this mismatch?

you can have the linux kernel in 64bit of course, then it is reported as aarch64 — Jaromanda X, Apr 08 '20 at 06:45

score 1 · Answer 1 · answered Apr 07 '20 at 22:29

1

Have a look at this old answer.

Till the Pi goes 64bit O/S I guess it will only report v7.

answered Apr 07 '20 at 22:29

So lscpu does not tell anything about the CPU but just the kernel? – ceving Apr 08 '20 at 07:02
Yea, the architcture report is wrong there. Try cat /proc/cpuinfo to get the real hardware. "BCM2835" is the correct CPU for a Raspberry Pi 4. – PMF Apr 08 '20 at 07:42
@PMF ALL Pi models report BCM2835 so this is meaningless! – Milliways Apr 08 '20 at 12:20
@Milliways: Oh... Good catch. Didn't notice that 2835 is quite wrong for the Pi4. – PMF Apr 08 '20 at 13:26

Why does Rasbian report the Cortex-A72 CPU of the Raspberry 4 as ARMv7?

1 Answers1