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From: jack wang <163wangjack@gmail.com>
To: qemu-devel@nongnu.org
Cc: Jack Wang <163wangjack@gmail.com>
Subject: [RFC PATCH 0/2] *** Add k230 reset management unit support ***
Date: Thu,  9 Jul 2026 11:12:35 +0800	[thread overview]
Message-ID: <20260709031237.21284-1-163wangjack@gmail.com> (raw)

From: Jack Wang <163wangjack@gmail.com>

This series adds support for reset management unit found on k230 soc and 
successfully  wires it up to k230 machine;

The register design are implemented based on k230 trm and linux reset driver
(drivers/reset/reset-k230.c)

detailed implementations:
1. write-enable mask for control registers(strobe in the upper 16 bits)
2. hardware auto-clearing for reset and flush request bits
3. latching of Done bits and w1c logic
4. qtest coverage for register read/write behaviors and hardware state modelin

There are some checkpatch style warnings (line length, comment
formatting) that will be addressed in v2 based on reviewer feedback.

this is my first time for hardware-unit modeling so apologies for possible mistake.
I am apprecitated for any feedback

Jack Wang (2):
  hw/misc/k230_rmu: add Kendryte K230 Reset Management Unit model
  hw/riscv/k230: wire up the RMU device

 docs/system/riscv/k230.rst  |   1 +
 hw/misc/Kconfig             |   3 +
 hw/misc/k230_rmu.c          | 280 ++++++++++++++++++++++++++++++++++++
 hw/misc/meson.build         |   1 +
 hw/misc/trace-events        |   6 +
 hw/riscv/Kconfig            |   1 +
 hw/riscv/k230.c             |  10 +-
 include/hw/misc/k230_rmu.h  |  76 ++++++++++
 include/hw/riscv/k230.h     |   2 +
 tests/qtest/k230-rmu-test.c | 125 ++++++++++++++++
 tests/qtest/meson.build     |   3 +-
 11 files changed, 504 insertions(+), 4 deletions(-)
 create mode 100644 hw/misc/k230_rmu.c
 create mode 100644 include/hw/misc/k230_rmu.h
 create mode 100644 tests/qtest/k230-rmu-test.c

-- 
2.53.0



             reply	other threads:[~2026-07-09  3:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-09  3:12 jack wang [this message]
2026-07-09  3:12 ` [RFC PATCH 1/2] hw/misc/k230_rmu: add Kendryte K230 Reset Management Unit model jack wang
2026-07-09  3:12 ` [RFC PATCH 2/2] hw/riscv/k230: wire up the RMU device jack wang

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