linux-kernel - [PATCH v1 0/5] Add tuning algorithm for delay chain

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Message-ID: <20240131215044.3163469-1-jm@ti.com>
Date: Wed, 31 Jan 2024 15:50:39 -0600
From: Judith Mendez <jm@...com>
To: Ulf Hansson <ulf.hansson@...aro.org>
CC: Adrian Hunter <adrian.hunter@...el.com>, <linux-mmc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Randolph Sapp <rs@...com>,
        Vignesh
 Raghavendra <vigneshr@...com>
Subject: [PATCH v1 0/5] Add tuning algorithm for delay chain

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.

[0] https://www.ti.com/lit/an/spract9/spract9.pdf

Judith Mendez (5):
  mmc: sdhci_am654: Add tuning algorithm for delay chain
  mmc: sdhci_am654: Write ITAPDLY for DDR52 timing
  mmc: sdhci_am654: Add missing OTAP/ITAP enable
  mmc: sdhci_am654: Add ITAPDLYSEL in sdhci_j721e_4bit_set_clock
  mmc: sdhci_am654: Fix ITAPDLY for HS400 timing

 drivers/mmc/host/sdhci_am654.c | 215 +++++++++++++++++++++++++--------
 1 file changed, 165 insertions(+), 50 deletions(-)

-- 
2.34.1