[PATCH v2 0/8] hw/arm: Add Allwinner H618 SoC and Orange Pi Zero 2W machine

[Khai Do <dovankhai97@gmail.com>]

This patch series adds emulation support for the Allwinner H618 SoC and
the Xunlong Orange Pi Zero 2W single-board computer (SBC).

The Allwinner H618 is a quad-core 64-bit ARM Cortex-A53 SoC. This series
follows the incremental skeleton design established for Allwinner SoCs:
- Patch 1: Introduces the basic H618 SoC model with 4x Cortex-A53 cores,
  GICv2, ARM Generic Timer PPIs, UART0/1, SRAM A1/A2, and stubbed unimp MMIO.
- Patch 2: Adds the Orange Pi Zero 2W machine with 1 GiB SDRAM and kernel loader.
- Patch 3: Separates the ALLWINNER_SID Kconfig symbol so other SoCs can reuse it.
- Patch 4: Extends the Allwinner SID eFuse controller to support configurable
  capacity up to 512 bytes (AW_SID_SIZE_MAX), preserving backward compatibility.
- Patch 5: Connects the SID controller into the H618 SoC (256 bytes capacity)
  and sets the default UID.
- Patch 6: Separates the ALLWINNER_SDHOST Kconfig symbol for independent reuse.
- Patch 7: Connects Allwinner SD/MMC host controller 0 (sun50i-a64 compatible)
  at 0x04020000 into the H618 SoC.
- Patch 8: Wires up the SD card bus to Orange Pi Zero 2W machine and supports
  loading bootloader firmware via -bios.

Changes since v1:
- hw/misc/allwinner-sid: Use extract32(s->control, 16, 9) to extract the
  9-bit PRCTL offset and return 0 on out-of-bounds eFuse reads.
- hw/arm/allwinner-h618: Set SID size property to 256 bytes (0x100) to
  match physical H618 eFuse capacity, consistent with Linux and Zephyr DTS.
- hw/sd/allwinner-sdhost: Separate CONFIG_ALLWINNER_SDHOST symbol from H3.
- hw/arm/allwinner-h618: Connect SD/MMC host controller 0.
- hw/arm/orangepi-zero2w: Wire up SD bus and support raw firmware loading
  via -bios (e.g. for U-Boot SPL).

Verification:
- The series has been tested using Zephyr RTOS (v4.5) running on the
  orangepi-zero2w target:
  * UART0 console & kernel boot: PASS
  * Multi-threading with ARM Generic Timer PPIs (k_msleep): PASS
  * HWINFO UID reading from SID eFuse: PASS (16 bytes UID)
  * SID OTP driver: PASS (Offset 0..15, Offset 240..255, and Offset 256
    returning -EINVAL out-of-bounds error)
- Tested raw firmware loading (-bios) with U-Boot SPL.
- All patches pass ./scripts/checkpatch.pl with 0 errors and 0 warnings.

Khai Do (8):
  hw/arm/allwinner-h618: Add Allwinner H618 SoC emulation
  hw/arm/orangepi-zero2w: Add Orange Pi Zero 2W machine
  hw/misc/allwinner-sid: Separate ALLWINNER_SID config symbol
  hw/misc/allwinner-sid: Support configurable eFuse capacity up to 512
    bytes
  hw/arm/allwinner-h618: Connect Allwinner SID controller
  hw/sd/allwinner-sdhost: Separate ALLWINNER_SDHOST config symbol
  hw/arm/allwinner-h618: Connect Allwinner SD/MMC host controller 0
  hw/arm/orangepi-zero2w: Wire up SD card and support firmware loading

 MAINTAINERS                     |   8 ++
 hw/arm/Kconfig                  |  11 ++
 hw/arm/allwinner-h618.c         | 247 ++++++++++++++++++++++++++++++++
 hw/arm/meson.build              |   1 +
 hw/arm/orangepi-zero2w.c        | 114 +++++++++++++++
 hw/misc/Kconfig                 |   3 +
 hw/misc/allwinner-sid.c         |  12 +-
 hw/misc/meson.build             |   2 +-
 hw/sd/Kconfig                   |   4 +
 hw/sd/meson.build               |   2 +-
 include/hw/arm/allwinner-h618.h |  63 ++++++++
 include/hw/misc/allwinner-sid.h |   8 ++
 12 files changed, 471 insertions(+), 4 deletions(-)
 create mode 100644 hw/arm/allwinner-h618.c
 create mode 100644 hw/arm/orangepi-zero2w.c
 create mode 100644 include/hw/arm/allwinner-h618.h

-- 
2.43.0