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From: Judith Mendez <jm@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>,
	Moteen Shah <m-shah@ti.com>
Subject: [PATCH v3 2/4] arm64: dts: ti: k3-am62a: Set MMC clock pins as OUTPUT
Date: Wed, 5 Aug 2026 17:54:36 -0500	[thread overview]
Message-ID: <20260805225438.464184-3-jm@ti.com> (raw)
In-Reply-To: <20260805225438.464184-1-jm@ti.com>

MMC clock pins must be configured as OUTPUT-only per TRM [0] with
receiver disabled (RXACTIVE bit = 0). Change MMC CLK pins from
PIN_INPUT to PIN_OUTPUT to match documentation.

[0] https://www.ti.com/lit/pdf/spruj16 Rev. C: Table 12-257. MMCSDi I/O Signals

Fixes: e041ec6e86e7 ("arm64: dts: ti: k3-am62a7-sk: Enable eMMC support")
Fixes: 38c4a08c820c ("arm64: dts: ti: Add support for AM62A7-SK")
Cc: <stable@vger.kernel.org>
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Moteen Shah <m-shah@ti.com>
---
Changes since v2:
- Add Moteen's review tag
---
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index b04636cab71c7..e63c5200a2370 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -328,7 +328,7 @@ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
 	main_mmc0_pins_default: main-mmc0-default-pins {
 		pinctrl-single,pins = <
 			AM62AX_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */
-			AM62AX_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLK */
+			AM62AX_IOPAD(0x218, PIN_OUTPUT, 0) /* (AB1) MMC0_CLK */
 			AM62AX_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */
 			AM62AX_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */
 			AM62AX_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */
@@ -344,7 +344,7 @@ AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */
 	main_mmc1_pins_default: main-mmc1-default-pins {
 		pinctrl-single,pins = <
 			AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
-			AM62AX_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */
+			AM62AX_IOPAD(0x234, PIN_OUTPUT, 0) /* (B22) MMC1_CLK */
 			AM62AX_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */
 			AM62AX_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */
 			AM62AX_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */
-- 
2.54.0



  parent reply	other threads:[~2026-08-05 22:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-05 22:54 [PATCH v3 0/4] MMC pinmux configuration fixes Judith Mendez
2026-08-05 22:54 ` [PATCH v3 1/4] arm64: dts: ti: k3-am62a: Fix MMC0_CLK register address Judith Mendez
2026-08-05 22:54 ` Judith Mendez [this message]
2026-08-05 23:06   ` [PATCH v3 2/4] arm64: dts: ti: k3-am62a: Set MMC clock pins as OUTPUT sashiko-bot
2026-08-05 22:54 ` [PATCH v3 3/4] arm64: dts: ti: k3-am62: " Judith Mendez
2026-08-05 23:02   ` sashiko-bot
2026-08-05 22:54 ` [PATCH v3 4/4] arm64: dts: ti: k3-am62l-evm: Remove unnecessary internal pullups for MMC0 Judith Mendez

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