[PATCH v5 0/5] Add support for Renesas RZ/Five SoC

[Lad Prabhakar]

Hi All,

This patch series adds initial support to RZ/Five (R9A07G043F) SoC (which
is equipped with AX45MP AndesCore). Platform supports DT based probing.

Linux support is currently being upstreamed the latest patchset can be
found at [0](currently in linux-next, DT bindings can be seen here)

[0] https://patchwork.kernel.org/project/linux-renesas-soc/cover/20221028165921.94487-1-prabhakar.mahadev-lad.rj@bp.renesas.com/

- PLIC binding - https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml#L57
- PLMT and PLICSW are not used by any driver in kernel hence DT bindings for it
  and is used in a similar manner as compared Andes AE350 [1]
  [1] https://github.com/andestech/linux/commits/v6.0.y_ae350-ax45mp/Documentation/devicetree/bindings
- SCIF binding - https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/serial/renesas,scif.yaml#L79

Note:
- The PMA implementation is still in discussion [1] once its decided
corresponding patch to OpenSBI will be added to reserve the memory nodes
and vendor specific SBI EXT.
- U-boot from BSP release wont work with these patches, it requires additional
  patches (happy to share the u-boot branch if anyone wants to test this patchset)
- Patches apply on top of [2]

[1] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20221124172207.153718-8-prabhakar.mahadev-lad.rj@bp.renesas.com/
[2] https://patchwork.ozlabs.org/project/opensbi/cover/20221128083046.6799-1-peterlin@andestech.com/

v4->v5
* Included RB tag from Anup for patch 5/5
* Updated generic.md to include RZ/Five SoC

v3->v4
* Included RB tags
* Updated doc
* Sorted compatible string list
* Fixed minor issues related to scif driver

v2->v3
* Switched to generic platform
* Dropped all vendor specific SBI EXT
* Fixed review comments pointed by Bin for SCIF driver
* Updated doc

RFC->v2
* Fixed comments pointed by Xiang W
* Included RB tag from Yu Chien Peter Lin for patch #3

RFC: https://patchwork.ozlabs.org/project/opensbi/cover/20221028004042.135549-1-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar

Lad Prabhakar (5):
  lib: utils: serial: Add Renesas SCIF driver
  lib: utils: serial: Add FDT driver for Renesas SCIF
  lib: utils/irqchip: Add compatible string for Andestech NCEPLIC100
  platform: generic: Add Renesas RZ/Five initial support
  docs: platform: Add documentation for Renesas RZ/Five SoC

 docs/platform/generic.md                   |   2 +
 docs/platform/platform.md                  |   5 +
 docs/platform/renesas-rzfive.md            | 160 +++++++++++++++++++++
 include/sbi_utils/fdt/fdt_helper.h         |   3 +
 include/sbi_utils/serial/renesas-scif.h    |  11 ++
 lib/utils/fdt/fdt_helper.c                 |  11 ++
 lib/utils/irqchip/fdt_irqchip_plic.c       |   3 +-
 lib/utils/serial/Kconfig                   |   9 ++
 lib/utils/serial/fdt_serial_renesas_scif.c |  31 ++++
 lib/utils/serial/objects.mk                |   4 +
 lib/utils/serial/renesas_scif.c            | 116 +++++++++++++++
 platform/generic/Kconfig                   |   4 +
 platform/generic/configs/defconfig         |   2 +
 platform/generic/renesas/rzfive/objects.mk |   8 ++
 platform/generic/renesas/rzfive/rzfive.c   |  17 +++
 15 files changed, 385 insertions(+), 1 deletion(-)
 create mode 100644 docs/platform/renesas-rzfive.md
 create mode 100644 include/sbi_utils/serial/renesas-scif.h
 create mode 100644 lib/utils/serial/fdt_serial_renesas_scif.c
 create mode 100644 lib/utils/serial/renesas_scif.c
 create mode 100644 platform/generic/renesas/rzfive/objects.mk
 create mode 100644 platform/generic/renesas/rzfive/rzfive.c

-- 
2.17.1