[PATCH 0/3] serial, MIPS: Add MIPS UHI semihosting support

[Jiaxun Yang]

Hi all,

This patchset adds support for MIPS UHI semihosting.
It has been implemented on many debugers such as MIPS CodeScape debugger
and OpenOCD.

It is also supported by QEMU's -semihosting option.

I didn't add MAINTAINERS entry for this driver because I find other
simple earlycon drivers don't have one either. Do let me know if it
should be added.

Thanks
Jiaxun

Jiaxun Yang (3):
  MIPS: Add header for UHI semihosting defines
  MIPS: zboot: Add UHI semihosting debug print support
  serial: Add an earlycon driver for MIPS UHI semihosting

 arch/mips/Kconfig.debug                |  11 +
 arch/mips/boot/compressed/Makefile     |   1 +
 arch/mips/boot/compressed/dbg-uhi.c    |  11 +
 arch/mips/boot/compressed/dbg.c        |   4 +-
 arch/mips/boot/compressed/decompress.c |   4 +
 arch/mips/include/asm/uhi.h            | 309 +++++++++++++++++++++++++
 drivers/tty/serial/Kconfig             |  13 ++
 drivers/tty/serial/Makefile            |   1 +
 drivers/tty/serial/earlycon-mips-uhi.c |  85 +++++++
 9 files changed, 437 insertions(+), 2 deletions(-)
 create mode 100644 arch/mips/boot/compressed/dbg-uhi.c
 create mode 100644 arch/mips/include/asm/uhi.h
 create mode 100644 drivers/tty/serial/earlycon-mips-uhi.c

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2.34.1