debian 9开始要 32位， mips32R2及以上的指令集，64位 mips64R2
loongson 目前商用最成功的U ，loongson2F 是mipsIII 指令

The Debian Installer team[1] is pleased to announce the seventh alpha
release of the installer for Debian 9 "Stretch"
Improvements in this release
===========================
* debian-installer:
- Bump Linux kernel version from 4.5.0-2 to 4.6.0-1.
- Bump kfreebsd (kernel) version to 10.3.
- Produce two beeps when booted with grub instead of one, so the
user knows she has to use the grub way to edit entries.
* syslinux:
- Fix input on the boot prompt being ignored (#823459).
Hardware support changes
=======================
* debian-installer:
- Add u-boot config script for Seagate Personal Cloud and Seagate
NAS.
- Use XZ compression for QNAP on Kirkwood due to size
restrictions.
- Mark fb-modules as required for armhf's netboot-gtk flavour.
- ARM: orion5x: Add a few Linkstation devices to netboot target.
- ARM: orion5x: Change initrd to XZ compression for all
orion5x-based Linkstation devices.
- Add mipsel octeon images.
- Drop mipsel cobalt support.
- Add mips64el support.
- Drop mipsel/loongson-2e and mipsel/loongson-2f images.

debian-installer:
- Add u-boot config script for Seagate Personal Cloud and Seagate
NAS.
- Use XZ compression for QNAP on Kirkwood due to size
restrictions.
- Mark fb-modules as required for armhf's netboot-gtk flavour.
- ARM: orion5x: Add a few Linkstation devices to netboot target.
- ARM: orion5x: Change initrd to XZ compression for all
orion5x-based Linkstation devices.
- Add mipsel octeon images.
- Drop mipsel cobalt support.
- Add mips64el support.
- Drop mipsel/loongson-2e and mipsel/loongson-2f images.

mips-linux-gnu linux MIPS32r2+FPXX big 32 MIPS o32 ABI MIPS psABI1415
mipsel-linux-gnu linux MIPS2(MIPS32r2 soon)+FPXX little 32 MIPS o32 ABI MIPS psABI1415
mips64-linux-gnuabin32 linux MIPS64r2 big 32 MIPS n32 ABI MIPSpro N32 ABI Handbook1416
mips64el-linux-gnuabin32 linux MIPS64r2 little 32 MIPS n32 ABI MIPSpro N32 ABI Handbook1416
mips64-linux-gnuabi64 linux MIPS64r2 big 64 MIPS 64-bit ABI MIPSpro N64 ABI Handbook1416
mips64el-linux-gnuabi64 linux MIPS64r2 little 64 MIPS 64-bit ABI MIPSpro N64 ABI Handbook1416
mipsisa32r6-linux-gnu linux MIPS32r6 big 32 MIPS o32 ABI MIPS psABI1415
mipsisa32r6el-linux-gnu linux MIPS32r6 little 32 MIPS o32 ABI MIPS psABI1415
mipsisa64r6-linux-gnuabin32 linux MIPS64r6 big 32 MIPS n32 ABI MIPSpro N32 ABI Handbook1416
mipsisa64r6el-linux-gnuabin32 linux MIPS64r6 little 32 MIPS n32 ABI MIPSpro N32 ABI Handbook1416
mipsisa64r6-linux-gnuabi64 linux MIPS64r6 big 64 MIPS 64-bit ABI MIPSpro N64 ABI Handbook1416
mipsisa64r6el-linux-gnuabi64 linux MIPS64r6 little 64 MIPS 64-bit ABI MIPSpro N64 ABI Handbook1416

https://wiki.debian.org/Multiarch/Tuples

https :// en.wikipedia.org/wiki/MIPS_instruction_set#MIPS32.2FMIPS64