From: Moteen Shah <m-shah@ti.com>
To: Judith Mendez <jm@ti.com>, Nishanth Menon <nm@ti.com>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Andrew Davis <afd@ti.com>
Subject: Re: [PATCH 0/4] Fix MMC pin pull configurations
Date: Fri, 20 Feb 2026 14:19:31 +0530 [thread overview]
Message-ID: <fea8ff29-5e3f-40fb-b375-eb63926e4de2@ti.com> (raw)
In-Reply-To: <20260212184246.2316659-1-jm@ti.com>
On 13/02/26 00:12, Judith Mendez wrote:
> 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.
For the series
Reviewed-by: Moteen Shah <m-shah@ti.com>
Regards,
Moteen
> 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(-)
>
prev parent reply other threads:[~2026-02-20 8:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-12 18:42 Judith Mendez
2026-02-12 18:42 ` [PATCH 1/4] arm64: dts: ti: k3-am62p5-sk: Disable MMC1 internal pulls on data lines Judith Mendez
2026-02-12 18:42 ` [PATCH 2/4] arm64: dts: ti: k3-am62l-evm: Disable MMC0 internal pulls Judith Mendez
2026-02-20 8:57 ` Moteen Shah
2026-02-23 20:15 ` Judith Mendez
2026-02-12 18:42 ` [PATCH 3/4] arm64: dts: ti: k3-am62l-evm: Disable MMC1 internal pulls on data pins Judith Mendez
2026-02-12 18:42 ` [PATCH 4/4] arm64: dts: ti: k3-am62-lp-sk: Enable internal pulls for MMC0 " Judith Mendez
2026-02-20 9:00 ` Moteen Shah
2026-02-20 8:49 ` Moteen Shah [this message]
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