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This lets each speed mode - and each board via device tree - >> select an appropriate value. >> >> Signed-off-by: Tze Yee Ng >> --- > > The PHY_CTRL default needs to be corrected. All six tables also use the > same 0x41F0, so this is not actually per-mode. > > Please fix the defaults. > > Regards, > Tanmay Hi Tanmay, 0x41F0 is the PHY_CTRL (0x2080) reset value from the PHY spec. The driver never wrote this register before, so the PHY already ran at 0x41F0 in every mode. Using it as the default in all six tables just preserves that (the write is a no-op unless overridden), while making the register tunable per mode/board via cdns,phy-ctrl- in DT, e.g. on Agilex5: 013b: cdns,phy-ctrl-emmc-ddr = <0x4010>; (phony_dqs_timing = 1) modular: cdns,phy-ctrl-emmc-ddr = <0x4000>; (phony_dqs_timing = 0) So the defaults match only because the reset value is mode-independent; the real tuning lives in DT. You're right that six bare 0x41F0 literals are misleading. For v3 I'll add a named constant (SDHCI_CDNS6_PHY_CTRL_REG_DEFAULT = 0x000041F0) for the default and reword the commit to say the register is made programmable with the reset value as default (no functional change), overridable per mode/board via DT. Does that work for you, or did you expect distinct per-mode defaults? I don't have validated per-mode values, that tuning is meant to live in DT. Thanks, Tze Yee