Hi, On 1/31/2024 6:07 AM, Judith Mendez wrote: > This patch series introduces a new tuning algorithm for > mmc. The new algorithm should be used when delay chain is > enabled. The ITAPDLY is selected from the largest passing > window and the buffer is not viewed as a circular buffer. > The new tuning algorithm is implemented as per the paper > published here [0] and has been tested on the following > platforms: AM62x SK, AM62A SK, AM62p SK, AM64x SK, and AM64x > EVM. > > The series also includes a few fixes in the sdhci_am654 > driver on OTAPDLYEN/ITAPDLYEN and ITAPDELSEL. There are > also device tree node fixes for missing mmc nodes, > modifying DLL properties, and fixes for OTAP/ITAP delay > values. > > MMC0/MMC2 nodes are introduced for AM62ax in this series. > > This series is sent as a RFC mostly to get some feedback > and/or comments on the new tuning algorithm implementation. > > [0] https://www.ti.com/lit/an/spract9/spract9.pdf > > Judith Mendez (11): > drivers: mmc: host: sdhci_am654: Add tuning algorithm for delay chain > drivers: mmc: host: sdhci_am654: Write ITAPDLY for DDR52 timing > drivers: mmc: host: sdhci_am654: Add missing OTAP/ITAP enable > drivers: mmc: host: sdhci_am654: Add ITAPDLYSEL in > sdhci_j721e_4bit_set_clock > drivers: mmc: host: sdhci_am654: Fix ITAPDLY for HS400 timing These patches needs to have Fixes: tag as they are bug fixes IMO. > arm64: dts: ti: k3-am62a-main: Add sdhci2 instance > arm64: dts: ti: k3-am64-main: Update ITAP/OTAP values for MMC > arm64: dts: ti: k3-am62-main: Update ITAP/OTAP values for MMC > arm64: dts: ti: k3-am62p: Add missing properties for MMC > arm64: dts: ti: k3-am6*: Remove DLL properties for soft phys > arm64: dts: ti: k3-am6*: Reorganize MMC properties > > Nitin Yadav (2): > arm64: dts: ti: k3-am62a-main: Add sdhci0 instance > arm64: dts: ti: k3-am62a7-sk: Enable eMMC support > Can the driver changes be merged independent of DT changes? Or are they meant to go together? Latter would be problematic as it creates cross tree dependencies. > arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 57 +++-- > .../arm64/boot/dts/ti/k3-am625-beagleplay.dts | 5 - > arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 45 +++- > arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 27 ++- > arch/arm64/boot/dts/ti/k3-am62p-main.dtsi | 44 +++- > arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 7 +- > .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 4 +- > arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 17 +- > arch/arm64/boot/dts/ti/k3-am642-evm.dts | 4 +- > arch/arm64/boot/dts/ti/k3-am642-sk.dts | 2 - > drivers/mmc/host/sdhci_am654.c | 215 ++++++++++++++---- > 11 files changed, 321 insertions(+), 106 deletions(-) >
