From: Sai Sree Kartheek Adivi <s-adivi@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>, <kristo@kernel.org>,
<robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<s-adivi@ti.com>
Cc: <hnagalla@ti.com>, <jm@ti.com>
Subject: [PATCH 2/2] arm64: dts: ti: k3-am64: Set MMC1_CLK pin as OUTPUT
Date: Mon, 28 Sep 2026 09:00:18 +0530 [thread overview]
Message-ID: <20260928033027.1077689-3-s-adivi@ti.com> (raw)
In-Reply-To: <20260928033027.1077689-1-s-adivi@ti.com>
From: Judith Mendez <jm@ti.com>
MMC clock pins must be configured as OUTPUT-only per TRM specification [0]
with receiver disabled (RXACTIVE bit = 0). Change MMC1_CLK from PIN_INPUT
to PIN_OUTPUT in AM64 device trees to match documentation.
[0] https://www.ti.com/lit/pdf/spruim2 Rev. J: Table 12-327. MMCSDi I/O Signals
Signed-off-by: Judith Mendez <jm@ti.com>
Signed-off-by: Sai Sree Kartheek Adivi <s-adivi@ti.com>
---
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 2 +-
arch/arm64/boot/dts/ti/k3-am642-sk.dts | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index a8c256269859e..677b7ec7c7dae 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -253,7 +253,7 @@ &main_pmx0 {
main_mmc1_pins_default: main-mmc1-default-pins {
pinctrl-single,pins = <
AM64X_IOPAD(0x0294, PIN_INPUT_PULLUP, 0) /* (J19) MMC1_CMD */
- AM64X_IOPAD(0x028c, PIN_INPUT_PULLDOWN, 0) /* (L20) MMC1_CLK */
+ AM64X_IOPAD(0x028c, PIN_OUTPUT, 0) /* (L20) MMC1_CLK */
AM64X_IOPAD(0x0288, PIN_INPUT_PULLUP, 0) /* (K21) MMC1_DAT0 */
AM64X_IOPAD(0x0284, PIN_INPUT_PULLUP, 0) /* (L21) MMC1_DAT1 */
AM64X_IOPAD(0x0280, PIN_INPUT_PULLUP, 0) /* (K19) MMC1_DAT2 */
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 6b50997780448..ea85be05a4111 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -201,7 +201,7 @@ main_mmc1_pins_default: main-mmc1-default-pins {
AM64X_IOPAD(0x029c, PIN_INPUT_PULLUP, 0) /* (C20) MMC1_SDWP */
AM64X_IOPAD(0x0298, PIN_INPUT_PULLUP, 0) /* (D19) MMC1_SDCD */
AM64X_IOPAD(0x0294, PIN_INPUT_PULLUP, 0) /* (J19) MMC1_CMD */
- AM64X_IOPAD(0x028c, PIN_INPUT_PULLDOWN, 0) /* (L20) MMC1_CLK */
+ AM64X_IOPAD(0x028c, PIN_OUTPUT, 0) /* (L20) MMC1_CLK */
AM64X_IOPAD(0x0288, PIN_INPUT_PULLUP, 0) /* (K21) MMC1_DAT0 */
AM64X_IOPAD(0x0284, PIN_INPUT_PULLUP, 0) /* (L21) MMC1_DAT1 */
AM64X_IOPAD(0x0280, PIN_INPUT_PULLUP, 0) /* (K19) MMC1_DAT2 */
--
2.54.0
next prev parent reply other threads:[~2026-09-28 3:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 3:30 [PATCH 0/2] k3-am64: Set MMC CLK pins as output Sai Sree Kartheek Adivi
2026-09-28 3:30 ` [PATCH 1/2] arm64: dts: ti: k3-am64: Drop MMC CLKLB config Sai Sree Kartheek Adivi
2026-09-28 3:30 ` Sai Sree Kartheek Adivi [this message]
2026-09-28 17:00 ` [PATCH 2/2] arm64: dts: ti: k3-am64: Set MMC1_CLK pin as OUTPUT Judith Mendez
2026-09-28 17:46 ` Judith Mendez
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