Re: [PATCH v3 08/20] mmc: am654_sdhci: Add support for software tuning

2021-01-25 Thread Jaehoon Chung
On 1/21/21 9:40 PM, Aswath Govindraju wrote: > From: Faiz Abbas > > With the new SW tuning App note[1], a custom tuning algorithm is > required for eMMC HS200, HS400 and SD card UHS modes. The algorithm > involves running through the 32 possible input tap delay values and > sending the

[PATCH v3 08/20] mmc: am654_sdhci: Add support for software tuning

2021-01-21 Thread Aswath Govindraju
From: Faiz Abbas With the new SW tuning App note[1], a custom tuning algorithm is required for eMMC HS200, HS400 and SD card UHS modes. The algorithm involves running through the 32 possible input tap delay values and sending the appropriate tuning command (CMD19/21) for each of them to get a