[v2] Enable quad SPI mode for SPI-NAND on IPQ RDP boards

[PATCH v2 0/3] Enable quad SPI mode for SPI-NAND on IPQ RDP boards

Posted by Md Sadre Alam 1 month, 3 weeks ago

Several Qualcomm IPQ RDP platforms support quad (x4) SPI transfers
between the QPIC SPI-NAND controller and the attached SPI-NAND device.
However, the corresponding device trees do not currently describe the
bus width capabilities of the flash device, causing transfers to fall
back to the default single-bit (x1) mode.

This series enables quad SPI operation on supported IPQ reference
design platforms by adding spi-rx-bus-width and spi-tx-bus-width
properties to the SPI-NAND device nodes.

The series updates the IPQ9574, IPQ5424 and IPQ5332 based RDPs.

Signed-off-by: Md Sadre Alam <md.alam@oss.qualcomm.com>
---
Changes in v2:
- No code changes
- Pick R-b tags
- rebased on top of tree
- updated the dependecies
- Depends-on : https://lore.kernel.org/linux-arm-msm/20260807-quad-v2-0-8ec821e2f22b@oss.qualcomm.com/
- Link to v1: https://lore.kernel.org/r/20260716-quad_dts-v1-0-74d86792944a@oss.qualcomm.com

---
Md Sadre Alam (3):
      arm64: dts: qcom: ipq9574-rdp-common: Enable quad SPI mode for SPI-NAND
      arm64: dts: qcom: ipq5424-rdp466: Enable quad SPI mode for SPI-NAND
      arm64: dts: qcom: ipq5332-rdp-common: Enable quad SPI mode for SPI-NAND

 arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi | 2 ++
 arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts      | 2 ++
 arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi | 2 ++
 3 files changed, 6 insertions(+)
---
base-commit: d56fa0b2bd2d9b2fddc10e8f5bdd42d56676935c
change-id: 20260716-quad_dts-6bac0484c08c
prerequisite-message-id : 20260807-quad-v2-0-8ec821e2f22b@oss.qualcomm.com
prerequisite-patch-id: 912ede01168ddf0476ba69ab0db786186073f817
prerequisite-patch-id: ab86c050f49d3180b10e61ec20bdcc6272c8100c
prerequisite-patch-id: 932ca3dc3893df6de25928b24c7c24550907088d

Best regards,
-- 
Md Sadre Alam <md.alam@oss.qualcomm.com>

Re: [PATCH v2 0/3] Enable quad SPI mode for SPI-NAND on IPQ RDP boards

Posted by Bjorn Andersson 8 hours ago

On Fri, 07 Aug 2026 22:05:30 +0530, Md Sadre Alam wrote:
> Several Qualcomm IPQ RDP platforms support quad (x4) SPI transfers
> between the QPIC SPI-NAND controller and the attached SPI-NAND device.
> However, the corresponding device trees do not currently describe the
> bus width capabilities of the flash device, causing transfers to fall
> back to the default single-bit (x1) mode.
> 
> This series enables quad SPI operation on supported IPQ reference
> design platforms by adding spi-rx-bus-width and spi-tx-bus-width
> properties to the SPI-NAND device nodes.
> 
> [...]

Applied, thanks!

[1/3] arm64: dts: qcom: ipq9574-rdp-common: Enable quad SPI mode for SPI-NAND
      commit: 1f6925d80ae327ab4e18e21b7c87c57b793c462c
[2/3] arm64: dts: qcom: ipq5424-rdp466: Enable quad SPI mode for SPI-NAND
      commit: 4d36e6d8c5a489c85d9440fc7330beee9b74f6f0
[3/3] arm64: dts: qcom: ipq5332-rdp-common: Enable quad SPI mode for SPI-NAND
      commit: be63397b43a4b1b3c4fbdb149413dacd8ad5a844

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>