From: Sascha Hauer <s.hauer@pengutronix.de>
To: "open list:BAREBOX" <barebox@lists.infradead.org>
Subject: [PATCH 7/9] ARM: k3: limit eMMC frequency to 25MHz
Date: Wed, 05 Feb 2025 10:48:15 +0100 [thread overview]
Message-ID: <20250205-k3-emmc-v1-7-06679246be41@pengutronix.de> (raw)
In-Reply-To: <20250205-k3-emmc-v1-0-06679246be41@pengutronix.de>
The eMMCs on am625 currently only work reliably with 25MHz. Until this
issue is sorted out limit them to 25MHz on the affected boards
(beagleplay and am625-sk).
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/dts/k3-am625-beagleplay.dts | 4 ++++
arch/arm/dts/k3-am625-sk.dts | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/arch/arm/dts/k3-am625-beagleplay.dts b/arch/arm/dts/k3-am625-beagleplay.dts
index 60340ab8ca..73ac950414 100644
--- a/arch/arm/dts/k3-am625-beagleplay.dts
+++ b/arch/arm/dts/k3-am625-beagleplay.dts
@@ -29,3 +29,7 @@ AM62X_IOPAD(0x0224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */
AM62X_IOPAD(0x0240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */
>;
};
+
+&sdhci0 {
+ max-frequency = <26000000>;
+};
diff --git a/arch/arm/dts/k3-am625-sk.dts b/arch/arm/dts/k3-am625-sk.dts
index 1982c34388..56d5681519 100644
--- a/arch/arm/dts/k3-am625-sk.dts
+++ b/arch/arm/dts/k3-am625-sk.dts
@@ -7,3 +7,7 @@
* DRAM size differs between board variants. Real size is read from DDRSS
*/
/delete-node/ &{/memory@80000000};
+
+&sdhci0 {
+ max-frequency = <26000000>;
+};
--
2.39.5
next prev parent reply other threads:[~2025-02-05 9:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-05 9:48 [PATCH 0/9] ARM: K3 updates Sascha Hauer
2025-02-05 9:48 ` [PATCH 1/9] ARM: k3: Add function to enable 32k crystal Sascha Hauer
2025-02-05 9:48 ` [PATCH 2/9] ARM: k3: add function to detect eMMC boot Sascha Hauer
2025-02-05 9:48 ` [PATCH 3/9] ARM: k3: do not mount /boot when booting from eMMC Sascha Hauer
2025-02-05 9:48 ` [PATCH 4/9] ARM: k3: r5: add USB DFU and eMMC boot support Sascha Hauer
2025-02-05 9:48 ` [PATCH 5/9] ARM: am625-sk: enable 32k crystal Sascha Hauer
2025-02-05 9:48 ` [PATCH 6/9] mci: am654: parse generic mmc node properties Sascha Hauer
2025-02-05 9:48 ` Sascha Hauer [this message]
2025-02-05 9:48 ` [PATCH 8/9] ARM: am625-sk: put environment on eMMC when booting from it Sascha Hauer
2025-02-05 9:48 ` [PATCH 9/9] serial: omap: Use ttyS as Linux console name Sascha Hauer
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