[PATCH 0/3] arm64: dts: qcom: monaco: Enable SDHCI storage support

[Monish Chunara <monish.chunara@oss.qualcomm.com>]

This series enables SDHCI storage support for both SD Card and eMMC on the
Qualcomm Monaco EVK platform.

The Monaco SoC shares the SDHCI controller between SD Card and eMMC use
cases. Previously, the common SoC dtsi unconditionally enabled the
'supports-cqe' property. This causes regression for SD cards, resulting
in timeouts and initialization failures during the probe sequence, as
the driver attempts to enable Command Queueing (CQE) logic incompatible
with the SD protocol.

To resolve this and enable full storage support, this series:

1. Moves the 'supports-cqe' property out of the common SoC dtsi. It is
   now only enabled in the specific eMMC configuration where it is
   supported.
2. Adds a device tree overlay to enable SD Card support (SDR/DDR modes).
3. Adds a device tree overlay to enable eMMC support. This configuration
   also explicitly disables the UFS controller to prevent power leakage,
   as the VCC regulator is shared between the UFS and eMMC rails on this
   platform.

Validated on Qualcomm Monaco EVK with both SD Card and eMMC modules.

Monish Chunara (3):
  arm64: dts: qcom: monaco: Move eMMC CQE support from SoC to board DT
  arm64: dts: qcom: monaco-evk: Enable SDHCI for SD Card via overlay
  arm64: dts: qcom: monaco-evk: Add SDHCI support for eMMC via overlay

 arch/arm64/boot/dts/qcom/Makefile             |  7 ++
 arch/arm64/boot/dts/qcom/monaco-evk-emmc.dtso | 46 ++++++++++++
 .../boot/dts/qcom/monaco-evk-sd-card.dtso     | 72 +++++++++++++++++++
 arch/arm64/boot/dts/qcom/monaco.dtsi          |  1 -
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts     |  1 +
 5 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/qcom/monaco-evk-emmc.dtso
 create mode 100644 arch/arm64/boot/dts/qcom/monaco-evk-sd-card.dtso

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2.34.1