[PATCH 0/4] Fix MMC pin pull configurations
From: Judith Mendez
Date: Thu Feb 12 2026 - 13:43:04 EST
This series corrects MMC pin pull-up/pull-down configurations across
TI AM62L EVM, AM62P SK, & AM62 LP SK boards to properly match their
hardware design.
Most boards have external pull-ups on MMC pins, but DT configuration
was also enabling internal pulls. Having both internal and external
pulls active causes several issues:
- Unnecessary power consumption due to reduced total resistance
- Potential timing issues with higher speed modes due to mismatched
rise/fall times across data lines
One board (AM62 LP SK) lacks external pulls on eMMC data pins and
requires internal pulls to be explicitly enabled to prevent floating
lines.
All changes are based on the respective board schematics referenced
in each patch.
Judith Mendez (4):
arm64: dts: ti: k3-am62p5-sk: Disable MMC1 internal pulls on data
lines
arm64: dts: ti: k3-am62l-evm: Disable MMC0 internal pulls
arm64: dts: ti: k3-am62l-evm: Disable MMC1 internal pulls on data pins
arm64: dts: ti: k3-am62-lp-sk: Enable internal pulls for MMC0 data
pins
arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts | 14 +++++++-------
arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 10 +++++-----
arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 6 +++---
3 files changed, 15 insertions(+), 15 deletions(-)
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2.52.0