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From: Frieder Schrempf <frieder@fris.de>
To: devicetree@vger.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>,
	Fabio Estevam <festevam@gmail.com>,
	Heiko Thiery <heiko.thiery@gmail.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>
Subject: [PATCH v3 5/8] arm64: dts: imx8mm-kontron: Remove low DDRC operating point
Date: Mon, 15 Aug 2022 13:01:28 +0200	[thread overview]
Message-ID: <20220815110134.49683-6-frieder@fris.de> (raw)
In-Reply-To: <20220815110134.49683-1-frieder@fris.de>

From: Frieder Schrempf <frieder.schrempf@kontron.de>

For some reason there is a problem with finding a DDR configuration
that works on all operating points and all LPDDR4 types used on the
SoM. Therefore the bootloader currently doesn't configure the lowest
of the three operating points. Let's also skip this in the kernel
devicetree to make sure it isn't used.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
Changes in v3:
* rebase on v6.0-rc1

Changes in v2:
* none
---
 arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
index 33179157f619..96ecdce67059 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
@@ -46,10 +46,6 @@ &ddrc {
 	ddrc_opp_table: opp-table {
 		compatible = "operating-points-v2";
 
-		opp-25M {
-			opp-hz = /bits/ 64 <25000000>;
-		};
-
 		opp-100M {
 			opp-hz = /bits/ 64 <100000000>;
 		};
-- 
2.37.1


  parent reply	other threads:[~2022-08-15 11:03 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-15 11:01 [PATCH v3 0/8] arm64: dts: imx8mm-kontron: Improvements and OSM board support Frieder Schrempf
2022-08-15 11:01 ` [PATCH v3 1/8] dt-bindings: arm: fsl: Rename compatibles for Kontron i.MX8MM SoM/board Frieder Schrempf
2022-08-15 11:01 ` [PATCH v3 2/8] dt-bindings: arm: fsl: Add Kontron BL i.MX8MM OSM-S board Frieder Schrempf
2022-08-15 11:01 ` [PATCH v3 3/8] arm64: dts: imx8mm-kontron: Adjust compatibles, file names and model strings Frieder Schrempf
2022-08-15 11:01 ` [PATCH v3 4/8] arm64: dts: imx8mm-kontron: Use the VSELECT signal to switch SD card IO voltage Frieder Schrempf
2022-08-15 11:01 ` Frieder Schrempf [this message]
2022-08-15 11:01 ` [PATCH v3 6/8] arm64: dts: imx8mm-kontron: Use voltage rail names from schematic for PMIC regulator-names Frieder Schrempf
2022-08-15 11:01 ` [PATCH v3 7/8] arm64: dts: imx8mm-kontron: Add SPI NOR partition layout Frieder Schrempf
2022-08-16  7:17   ` Krzysztof Kozlowski
2022-08-15 11:01 ` [PATCH v3 8/8] arm64: dts: Add support for Kontron SL/BL i.MX8MM OSM-S Frieder Schrempf
  -- strict thread matches above, loose matches on Subject: below --
2022-08-22  8:00 [PATCH v3 0/8] arm64: dts: imx8mm-kontron: Improvements and OSM board support Frieder Schrempf
2022-08-22  8:00 ` [PATCH v3 5/8] arm64: dts: imx8mm-kontron: Remove low DDRC operating point Frieder Schrempf

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