[v2] Add SPI NOR DTS node for SG2042 SoC and boards using it

[PATCH v2 0/4] Add SPI NOR DTS node for SG2042 SoC and boards using it

Posted by Zixian Zeng 4 months, 3 weeks ago

[PATCH 1/4] and [PATCH 2/4] are copied from patch set [1]
[PATCH v4 4/4] with content changes:

According to SG2042 Pioneer and SG2042_EVB_V1/V2 schematics, SPI-NOR Flash
cannot support QSPI due to hardware design.
Thus spi-(tx|rx)-bus-width must be set to 1.

Link: https://lore.kernel.org/linux-riscv/20250720-sfg-spifmc-v4-0-033188ad801e@gmail.com/ [1]

Signed-off-by: Zixian Zeng <sycamoremoon376@gmail.com>
---
Changes in v2:
- Change value of spi-(tx|rx)-bus-width properties to 1 of all boards.
- Decrease spi-max-frequency to 50MHz.
- Link to v1: https://lore.kernel.org/r/20250813-sfg-spidts-v1-0-99b7e2be89d9@gmail.com

---
Zixian Zeng (4):
      riscv: dts: sophgo: Add SPI NOR node for SG2042
      riscv: dts: sophgo: Enable SPI NOR node for PioneerBox
      riscv: dts: sophgo: Enable SPI NOR node for SG2042_EVB_V1
      riscv: dts: sophgo: Enable SPI NOR node for SG2042_EVB_V2

 arch/riscv/boot/dts/sophgo/sg2042-evb-v1.dts       | 24 ++++++++++++++++++++++
 arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts       | 12 +++++++++++
 .../riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts | 24 ++++++++++++++++++++++
 arch/riscv/boot/dts/sophgo/sg2042.dtsi             | 24 ++++++++++++++++++++++
 4 files changed, 84 insertions(+)
---
base-commit: 8a4fdd09c96f6713e6cb47d36e9f9dd6f6694215
change-id: 20250813-sfg-spidts-ee56044969fe

Best regards,
-- 
Zixian Zeng <sycamoremoon376@gmail.com>

Re: [PATCH v2 0/4] Add SPI NOR DTS node for SG2042 SoC and boards using it

Posted by Inochi Amaoto 2 months, 3 weeks ago

On Tue, 16 Sep 2025 21:22:49 +0800, Zixian Zeng wrote:
> [PATCH 1/4] and [PATCH 2/4] are copied from patch set [1]
> [PATCH v4 4/4] with content changes:
> 
> According to SG2042 Pioneer and SG2042_EVB_V1/V2 schematics, SPI-NOR Flash
> cannot support QSPI due to hardware design.
> Thus spi-(tx|rx)-bus-width must be set to 1.
> 
> [...]

Applied to dt/riscv, thanks!

[1/4] riscv: dts: sophgo: Add SPI NOR node for SG2042
      https://github.com/sophgo/linux/commit/59dc89fdfe0bbcce186116651bd017cfb9f70fc0
[2/4] riscv: dts: sophgo: Enable SPI NOR node for PioneerBox
      https://github.com/sophgo/linux/commit/f49314cbbc98f9ab2bf4eb82ccacbf79f179db6c
[3/4] riscv: dts: sophgo: Enable SPI NOR node for SG2042_EVB_V1
      https://github.com/sophgo/linux/commit/11f4d84c9f724ec4c6810567d6b9713b054bb28b
[4/4] riscv: dts: sophgo: Enable SPI NOR node for SG2042_EVB_V2
      https://github.com/sophgo/linux/commit/af5eb17ff893bf6e52680a31059e1816749c2d20

Thanks,
Inochi