On 1/31/24 7:35 AM, Raghavendra, Vignesh wrote:
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.
Understood, will add.
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.
The driver changes can be merged independently.
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(-)
