[PATCH v3 0/9] Refactor AST2700 SCU preparation for coprocessors

[Jamin Lin <jamin_lin@aspeedtech.com>]

The original AST2700 FC support series [1] is fairly large, making it
difficult to review all changes together.

To help speed up the review process, this series extracts the SCU/FMC-related
refactoring into a standalone prerequisite series.

This series depends on https://github.com/legoater/qemu.git at aspeed-next branch.

v1:
Compared with the original series, the SCU preparation patch has been
split into three smaller patches:

Introduce Aspeed2700SCUState.
Convert AST1700/AST27x0 users to the new SCU subclass.
Move the SCU link property into the AST27x0-specific coprocessor
implementation.

In addition, the SCUIO reset handling has been separated into an
independent patch.

This series contains no functional changes. It is purely a refactoring
to isolate AST2700-specific SCU support from the generic implementation
and prepare for the subsequent AST2700 FC support.

v2:
 1. Pass realized PSP SoC to SSP/TSP initialization
 2. Share single SCUIO instance across PSP, SSP, and TSP
 3. Share FMC controller with SSP and TSP
 4. Add Data FIFO-based flash access support for

v3:
  1. Add Data FIFO mode test
  2. Clarify SCU/SCUIO/FMC fields are shared with PSP SoC to AST2700
  3. Bump vmstate version after ASPEED_SMC_R_MAX increase
 
Supersedes the following patches from the original FC support series [1]:

Patch 1:
https://patchwork.kernel.org/project/qemu-devel/patch/20260417032837.2664122-2-jamin_lin@aspeedtech.com/

Patch 2:
https://patchwork.kernel.org/project/qemu-devel/patch/20260417032837.2664122-3-jamin_lin@aspeedtech.com/

Patch 4:
https://patchwork.kernel.org/project/qemu-devel/patch/20260417032837.2664122-12-jamin_lin@aspeedtech.com/

Patch 15:
https://patchwork.kernel.org/project/qemu-devel/patch/20260417032837.2664122-16-jamin_lin@aspeedtech.com/

Patch 18:
https://patchwork.kernel.org/project/qemu-devel/patch/20260417032837.2664122-19-jamin_lin@aspeedtech.com/

Patch 
[1] Original AST2700 FC support series:
https://patchwork.kernel.org/project/qemu-devel/cover/20260417032837.2664122-1-jamin_lin@aspeedtech.com/

Jamin Lin (9):
  hw/misc/aspeed_scu: Introduce Aspeed2700SCUState
  hw/arm/aspeed: Use Aspeed2700SCUState for AST2700 users
  hw/arm/aspeed_ast27x0: Move SCU link into AST27x0 coprocessors
  hw/misc/aspeed_scu: Add separate reset handler for AST2700 SCUIO
  hw/arm/aspeed_ast27x0: Pass realized PSP SoC to SSP/TSP initialization
  hw/arm/ast27x0: Share single SCUIO instance across PSP, SSP, and TSP
  hw/arm/ast27x0: Share FMC controller with SSP and TSP
  hw/ssi/aspeed_smc: Add Data FIFO-based flash access support for
    AST2700
  tests/qtest/ast2700-smc-test: Add Data FIFO mode test

 include/hw/arm/aspeed_ast1700.h     |   2 +-
 include/hw/arm/aspeed_coprocessor.h |  16 +++-
 include/hw/arm/aspeed_soc.h         |   1 +
 include/hw/misc/aspeed_scu.h        |   5 ++
 include/hw/ssi/aspeed_smc.h         |   3 +-
 tests/qtest/aspeed-smc-utils.h      |   4 +
 hw/arm/aspeed_ast27x0-fc.c          |  38 ++++++---
 hw/arm/aspeed_ast27x0-ssp.c         |  56 ++++++++++---
 hw/arm/aspeed_ast27x0-tsp.c         |  56 ++++++++++---
 hw/arm/aspeed_ast27x0.c             |  16 ++--
 hw/arm/aspeed_coprocessor_common.c  |   2 -
 hw/misc/aspeed_scu.c                |  20 ++++-
 hw/ssi/aspeed_smc.c                 | 117 +++++++++++++++++++++++++---
 tests/qtest/aspeed-smc-utils.c      | 103 ++++++++++++++++++++++++
 tests/qtest/ast2700-smc-test.c      |   4 +
 15 files changed, 385 insertions(+), 58 deletions(-)

-- 
2.43.0