From: Tze Yee Ng <[email protected]>
This series hardens the per-mode PHY/controller configuration handling in
the Cadence SD6HC (v6) driver and then enables the UHS-I higher-speed
modes (SDR104 and DDR50, plus eMMC DDR52) on the Agilex5 SoCDK and its
013B and modular variants:
- const config tables + per-call copies, so device-tree overrides can
no longer mutate the shared defaults and leak between controllers;
- named enum slots for the PHY/HRS config tables, so reordering or
inserting an entry cannot silently reprogram the wrong register
(no functional change);
- program the PHY control register (0x2080) per speed mode, with a
per-mode / per-board device-tree override;
- add the SDR104 (emmc-hs200) and DDR50 (emmc-ddr) PHY timing for the
Agilex5 SoCDK, 013B and modular boards and advertise the matching
sd-uhs-* / mmc-ddr-1_8v capabilities.
Dependencies
------------
The driver patches (1-3) apply on top of, and depend on, the fixes
series (series=519635):
"mmc: sdhci-cadence6: fix PHY programming reliability"
The HRS05 posted-write flush and the post-adjustment settle delay from
that series are required for reliable higher-speed operation.
The device-tree patch (4) additionally depends on two Agilex5 board
patches still under review, as it extends the .dts/.dtsi files they add:
"arm: dts: socfpga: Add MDK support with external GPIO expander"
- Tanmay Kathpalia (series=16401)
"arm: dts: socfpga: Add Agilex5 E-Series 013B SoCDK variant"
- Dinesh Maniyam (series=32177)
Tze Yee Ng (4):
mmc: sdhci-cadence6: use const PHY config tables with per-call
overrides
mmc: sdhci-cadence6: name PHY and controller config table slots
mmc: sdhci-cadence6: configure PHY control register per speed mode
arm: dts: socfpga: agilex5: add SD/eMMC UHS PHY timing
.../arm/dts/socfpga_agilex5_socdk-u-boot.dtsi | 13 ++
.../socfpga_agilex5_socdk_013b-u-boot.dtsi | 24 +++-
arch/arm/dts/socfpga_agilex5_socdk_013b.dts | 4 +-
arch/arm/dts/socfpga_agilex5_socdk_emmc.dts | 13 ++
.../arm/dts/socfpga_agilex5_socdk_modular.dts | 20 +++
drivers/mmc/sdhci-cadence6.c | 136 ++++++++++++------
6 files changed, 166 insertions(+), 44 deletions(-)
--
2.43.7
