All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH 0/3] riscv: Add K230 DDR controller and PHY models
@ 2026-07-16 13:24 Junze Cao
  2026-07-16 13:24 ` [PATCH 1/3] hw/misc: " Junze Cao
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Junze Cao @ 2026-07-16 13:24 UTC (permalink / raw)
  To: qemu-devel
  Cc: qemu-riscv, chao.liu, pierrick.bouvier, palmer, alistair.francis,
	liwei1518, daniel.barboza, zhiwei_liu, farosas, lvivier, pbonzini,
	Junze Cao

The K230 SDK U-Boot SPL initializes DRAM by programming the DDRC CFG
and DDR PHY MMIO regions. The k230 machine currently exposes the DDR
configuration region as unimplemented and does not provide the PHY, so
the SPL cannot complete the training and DFI handshakes.

Add minimal models for the register behavior exercised by the SDK SPL.
The controller model provides reset values, register access policy, DFI
and software-update handshakes, and the Init-to-Normal transition. The
PHY model provides CSR ownership, the training mailbox, and DFI
completion. Wire both devices into the k230 machine and document the
resulting SPL support.

These device models allow firmware to complete the DDR initialization
sequence.

Testing performed:

* scripts/checkpatch.pl --branch upstream/master..HEAD
* meson test -C build --print-errorlogs
  qemu:qtest-riscv64/k230-ddr-test (6 subtests passed)
* Booted the K230 SDK U-Boot SPL through DDR initialization to its SPI
  boot path

Junze Cao (3):
  hw/misc: Add K230 DDR controller and PHY models
  hw/riscv: Connect K230 DDR controller and PHY models
  tests/qtest: Add K230 DDR controller tests

 MAINTAINERS                 |   3 +
 docs/system/riscv/k230.rst  |   4 +
 hw/misc/k230_ddr.c          | 544 ++++++++++++++++++++++++++++++++++++
 hw/misc/meson.build         |   1 +
 hw/riscv/k230.c             |  19 +-
 include/hw/misc/k230_ddr.h  |  59 ++++
 include/hw/riscv/k230.h     |   4 +
 tests/qtest/k230-ddr-test.c | 226 +++++++++++++++
 tests/qtest/meson.build     |   3 +-
 9 files changed, 859 insertions(+), 4 deletions(-)
 create mode 100644 hw/misc/k230_ddr.c
 create mode 100644 include/hw/misc/k230_ddr.h
 create mode 100644 tests/qtest/k230-ddr-test.c


base-commit: eca2c16212ef9dcb0871de39bb9d1c2efebe76be
-- 
2.53.0


^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2026-07-23  8:43 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-07-16 13:24 [PATCH 0/3] riscv: Add K230 DDR controller and PHY models Junze Cao
2026-07-16 13:24 ` [PATCH 1/3] hw/misc: " Junze Cao
2026-07-22 20:06   ` Daniel Henrique Barboza
2026-07-23  8:41   ` Chao Liu
2026-07-16 13:24 ` [PATCH 2/3] hw/riscv: Connect " Junze Cao
2026-07-22 20:08   ` Daniel Henrique Barboza
2026-07-23  8:42   ` Chao Liu
2026-07-16 13:24 ` [PATCH 3/3] tests/qtest: Add K230 DDR controller tests Junze Cao
2026-07-22 20:16   ` Daniel Henrique Barboza
2026-07-23  8:42   ` Chao Liu

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.