[PATCH v2 0/3] riscv: sophgo: add mailbox support for cv18x SoCs

[Yuntao Dai]

Add mailbox support for Sophgo cv18x SoCs, and test on both cv1800b SoC for 
milkv-duo and cv1812h SoC for milkv-duo256m

Changes in v2:
- drop 'recvid' 'sender' in dt-bindings
- fix compatible to 'cv1800-mailbox', and change filenames too
- change #mbox-cell to 2, for <channel tagert_cpu> 
- add struct cv1800_mbox_chan_priv and function cv1800_mbox_xlate to extract 
  informations in mbox devicetree node of mailbox client

Yuntao Dai (3):
  dt-bindings: mailbox: add Sophgo cv18x SoCs mailbox
  riscv: dts: add mailbox for Sophgo cv18x SoCs
  mailbox: sophgo: add mailbox driver for cv18x SoCs

 .../mailbox/sophgo,cv1800-mailbox.yaml        |  61 ++++++
 arch/riscv/boot/dts/sophgo/cv18xx.dtsi        |   9 +
 drivers/mailbox/Kconfig                       |  11 +
 drivers/mailbox/Makefile                      |   2 +
 drivers/mailbox/cv1800-mailbox.c              | 203 ++++++++++++++++++
 5 files changed, 286 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/sophgo,cv1800-mailbox.yaml
 create mode 100644 drivers/mailbox/cv1800-mailbox.c

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2.17.1