Add a generic DesignWare APB timer device model, and wire it
up for the K230 machine with num-timers=6 and a 6.25 MHz clock.

Changes since v2:
- Per Bin Meng's review, refactored from K230-specific device
  to a generic DesignWare APB Timer model with num-timers property
- K230 board sets num-timers=6 and clock frequency accordingly

Changes since v1:
- Split into 3 patches: model, board integration, tests
- Remove goto pattern from read/write handlers
- Fix include order, add explicit bitops.h include
- Add QOM <private>/<public> markers in struct
- Fix copyright headers

raoyi (3):
  hw/timer: add DesignWare APB timer model
  hw/riscv: add DesignWare APB timer to K230 board
  tests/qtest: add k230 dwapb timer test

 MAINTAINERS                         |   3 +
 hw/riscv/Kconfig                    |   1 +
 hw/riscv/k230.c                     |  32 +++-
 hw/timer/Kconfig                    |   4 +
 hw/timer/dw-apb-timer.c             | 341 ++++++++++++++++++++++++++++
 hw/timer/meson.build                |   1 +
 hw/timer/trace-events               |   8 +
 include/hw/riscv/k230.h             |  12 ++
 include/hw/timer/dw-apb-timer.h     |  65 +++++
 tests/qtest/k230-dwapb-timer-test.c | 261 +++++++++++++++++++++
 tests/qtest/meson.build             |   4 +-
 11 files changed, 728 insertions(+), 4 deletions(-)
 create mode 100644 hw/timer/dw-apb-timer.c
 create mode 100644 include/hw/timer/dw-apb-timer.h
 create mode 100644 tests/qtest/k230-dwapb-timer-test.c

-- 
2.53.0