From: Bhavya Kapoor <b-kapoor@ti.com>
To: <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>, <vigneshr@ti.com>,
<nm@ti.com>, <piyali_g@ti.com>
Subject: [PATCH] arm64: dts: ti: k3-j721e-main: Remove ti,strobe-sel property
Date: Mon, 7 Nov 2022 16:52:46 +0530 [thread overview]
Message-ID: <20221107112246.69242-1-b-kapoor@ti.com> (raw)
According to latest errata of J721e [1], HS400 mode is not supported
in MMCSD0 subsystem (i2024) . Speed modes supported has been already
updated in PATCH eb8f6194e807. 'ti,strobe-sel' property is only
required by HS400 speed mode and thus needs to be removed from kernel
dtsi for J721e soc.
'ti,strobe-sel' is read in sdhci_am654.c line 733 and gets stored in
sdhci_am654->strb_sel. This sdhci_am654->strb_sel is used at only one
place in sdhci_am654.c line 291 which will only get used if HS400
is enabled.
Thus, drop 'ti,strobe-sel' property from kernel dtsi for J721e soc.
[.] https://www.ti.com/lit/er/sprz455/sprz455.pdf
Fixes: eb8f6194e807 ("arm64: dts: ti: k3-j721e-main: Update the speed modes supported and their itap delay values for MMCSD subsystems")
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
---
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 917c9dc99efa..e4748a838d83 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -1094,7 +1094,6 @@
ti,itap-del-sel-mmc-hs = <0xa>;
ti,itap-del-sel-ddr52 = <0x3>;
ti,trm-icp = <0x8>;
- ti,strobe-sel = <0x77>;
dma-coherent;
};
--
2.20.1
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next reply other threads:[~2022-11-07 11:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-07 11:22 Bhavya Kapoor [this message]
2022-11-15 3:43 ` [PATCH] arm64: dts: ti: k3-j721e-main: Remove ti,strobe-sel property Nishanth Menon
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