On Tue, 19 Sep 2023 23:33:48 PDT (-0700), unicornxw@xxxxxxxxx wrote:
Milk-V Pioneer [1] is a developer motherboard based on SOPHON SG2042 [2]
in a standard mATX form factor. Add minimal device
tree files for the SG2042 SOC and the Milk-V Pioneer board.
Now only support basic uart drivers to boot up into a basic console.
Thanks,
Chen
---
Changes in v2:
The patch series is based on v6.6-rc1. You can simply review or test
the patches at the link [4].
- Improve format for comment of commitments as per input from last review.
- Improve format of DTS as per input from last review.
- Remove numa related stuff from DTS. This part is just for optimization, may
add it later if really needed.
Previous versions:
v1: due to it is not sent in thread, I have listed permlinks of the patchset
[v1-0/12] ~ [v1-12/12] here for quick reference. You can simply review or
test the patches at the link [3].
[1]: https://milkv.io/pioneer
[2]: https://en.sophgo.com/product/introduce/sg2042.html
[3]: https://github.com/unicornx/linux-riscv/commits/milkv-pioneer-minimal
[4]: https://github.com/unicornx/linux-riscv/commits/milkv-pioneer-minimal-v2
[v1-0/12]:https://lore.kernel.org/linux-riscv/20230915070856.117514-1-wangchen20@xxxxxxxxxxx/
[v1-1/12]:https://lore.kernel.org/linux-riscv/20230915071005.117575-1-wangchen20@xxxxxxxxxxx/
[v1-2/12]:https://lore.kernel.org/linux-riscv/20230915071409.117692-1-wangchen20@xxxxxxxxxxx/
[v1-3/12]:https://lore.kernel.org/linux-riscv/20230915072242.117935-1-wangchen20@xxxxxxxxxxx/
[v1-4/12]:https://lore.kernel.org/linux-riscv/20230915072333.117991-1-wangchen20@xxxxxxxxxxx/
[v1-5/12]:https://lore.kernel.org/linux-riscv/20230915072358.118045-1-wangchen20@xxxxxxxxxxx/
[v1-6/12]:https://lore.kernel.org/linux-riscv/20230915072415.118100-1-wangchen20@xxxxxxxxxxx/
[v1-7/12]:https://lore.kernel.org/linux-riscv/20230915072431.118154-1-wangchen20@xxxxxxxxxxx/
[v1-8/12]:https://lore.kernel.org/linux-riscv/20230915072451.118209-1-wangchen20@xxxxxxxxxxx/
[v1-9/12]:https://lore.kernel.org/linux-riscv/20230915072517.118266-1-wangchen20@xxxxxxxxxxx/
[v1-10/12]:https://lore.kernel.org/linux-riscv/20230915072558.118325-1-wangchen20@xxxxxxxxxxx/
[v1-11/12]:https://lore.kernel.org/linux-riscv/20230915072624.118388-1-wangchen20@xxxxxxxxxxx/
[v1-12/12]:https://lore.kernel.org/linux-riscv/20230915072653.118448-1-wangchen20@xxxxxxxxxxx/
---
Chen Wang (8):
riscv: Add SOPHGO SOC family Kconfig support
dt-bindings: vendor-prefixes: add milkv/sophgo
dt-bindings: riscv: add sophgo sg2042 bindings
dt-bindings: riscv: Add T-HEAD C920 compatibles
dt-bindings: interrupt-controller: Add SOPHGO's SG2042 PLIC
riscv: dts: add initial SOPHGO SG2042 SoC device tree
riscv: dts: sophgo: add Milk-V Pioneer board device tree
riscv: defconfig: enable SOPHGO SoC
Emil Renner Berthing (2):
dt-bindings: serial: snps-dw-apb-uart: Add Sophgo SG2042 uarts
serial: 8250_dw: Add Sophgo SG2042 support
Inochi Amaoto (1):
dt-bindings: timer: Add Sophgo sg2042 clint
.../sifive,plic-1.0.0.yaml | 1 +
.../devicetree/bindings/riscv/cpus.yaml | 1 +
.../devicetree/bindings/riscv/sophgo.yaml | 28 +
.../bindings/serial/snps-dw-apb-uart.yaml | 1 +
.../bindings/timer/sifive,clint.yaml | 8 +
.../devicetree/bindings/vendor-prefixes.yaml | 4 +
MAINTAINERS | 7 +
arch/riscv/Kconfig.socs | 5 +
arch/riscv/boot/dts/Makefile | 1 +
arch/riscv/boot/dts/sophgo/Makefile | 3 +
arch/riscv/boot/dts/sophgo/sg2042-cpus.dtsi | 1744 +++++++++++++++++
.../boot/dts/sophgo/sg2042-milkv-pioneer.dts | 19 +
arch/riscv/boot/dts/sophgo/sg2042.dtsi | 439 +++++
arch/riscv/configs/defconfig | 1 +
drivers/tty/serial/8250/8250_dw.c | 5 +-
15 files changed, 2265 insertions(+), 2 deletions(-)
create mode 100644 Documentation/devicetree/bindings/riscv/sophgo.yaml
create mode 100644 arch/riscv/boot/dts/sophgo/Makefile
create mode 100644 arch/riscv/boot/dts/sophgo/sg2042-cpus.dtsi
create mode 100644 arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
create mode 100644 arch/riscv/boot/dts/sophgo/sg2042.dtsi
Given this is the first sg2042 and it appears to have a few errata (the
FP rounding issues and the special fence for starvation), I think we
want to make sure we figure out how to provide that information to
userspace.
base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
