Qiita Teams that are logged in
You are not logged in to any team

Log in to Qiita Team
Community
OrganizationAdvent CalendarQiitadon (β)
Service
Qiita JobsQiita ZineQiita Blog
0
Help us understand the problem. What is going on with this article?
@tetsu_koba

Raspberry Pi 3のRaspbian はrootfsもkernelも32bitだった

More than 3 years have passed since last update.

遅ればせながらラズパイ3を入手しました。

$ cat /proc/version
Linux version 4.14.24-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1097 SMP Mon Mar 5 16:42:05 GMT 2018
$ cat /proc/cpuinfo
processor   : 0
model name  : ARMv7 Processor rev 4 (v7l)
BogoMIPS    : 38.40
Features    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part    : 0xd03
CPU revision    : 4

processor   : 1
model name  : ARMv7 Processor rev 4 (v7l)
BogoMIPS    : 38.40
Features    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part    : 0xd03
CPU revision    : 4

processor   : 2
model name  : ARMv7 Processor rev 4 (v7l)
BogoMIPS    : 38.40
Features    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part    : 0xd03
CPU revision    : 4

processor   : 3
model name  : ARMv7 Processor rev 4 (v7l)
BogoMIPS    : 38.40
Features    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part    : 0xd03
CPU revision    : 4

Hardware    : BCM2835
Revision    : a02082
Serial      : 000000001910d2d7

/boot のカーネルイメージは以下の2種類しかない。kernel.img は初代Raspberry Pi用でarmv6。kernel7.img がRaspberry Pi 2用でarmv7。Raspberry Pi 3もkernel7.img で動いているようだ。

$ ls -l /boot/kernel*
-rwxr-xr-x 1 root root 4827200 Mar  6 03:26 /boot/kernel7.img
-rwxr-xr-x 1 root root 4621952 Mar  6 03:26 /boot/kernel.img

参考。Nano Pi NEO 2

Nano Pi NEO 2もCortex-A53 (64bit arm)が載っている。

$ cat /proc/version 
Linux version 4.11.2 (root@wwd) (gcc version 6.3.1 20170109 (Linaro GCC 6.3-2017.02) ) #4 SMP Wed Jul 19 17:53:37 CST 2017
$ cat /proc/cpuinfo
processor   : 0
BogoMIPS    : 48.00
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

processor   : 1
BogoMIPS    : 48.00
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

processor   : 2
BogoMIPS    : 48.00
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

processor   : 3
BogoMIPS    : 48.00
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

Hardware    : Allwinnersun50iw2Family
Revision    : 0000
Serial      : 0000000000000000

関連

Raspberry Pi 3 を64bitモードで動かすイメージをBuildrootで作る

0
Help us understand the problem. What is going on with this article?
Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
tetsu_koba
組み込みの人。

Comments

No comments
Sign up for free and join this conversation.
Sign Up
If you already have a Qiita account Login
0
Help us understand the problem. What is going on with this article?