linux-kernel - [PATCH 5.12 189/677] arm64: dts: ti: k3-j721e-main: Update the speed modes supported and their itap delay values for MMCSD subsystems

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Message-Id: <20210512144843.525424646@linuxfoundation.org>
Date:   Wed, 12 May 2021 16:43:55 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Aswath Govindraju <a-govindraju@...com>,
        Nishanth Menon <nm@...com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 189/677] arm64: dts: ti: k3-j721e-main: Update the speed modes supported and their itap delay values for MMCSD subsystems

From: Aswath Govindraju <a-govindraju@...com>

[ Upstream commit eb8f6194e8074d7b00642dd75cf04d13e1b218e4 ]

According to latest errata of J721e [1], HS400 mode is not supported
in MMCSD0 subsystem (i2024) and SDR104 mode is not supported in MMCSD1/2
subsystems (i2090). Therefore, replace mmc-hs400-1_8v with mmc-hs200-1_8v
in MMCSD0 subsystem and add a sdhci mask to disable SDR104 speed mode.

Also, update the itap delay values for all the MMCSD subsystems according
the latest J721e data sheet[2]

[1] - https://www.ti.com/lit/er/sprz455/sprz455.pdf
[2] - https://www.ti.com/lit/ds/symlink/tda4vm.pdf

Fixes: cd48ce86a4d0 ("arm64: dts: ti: k3-j721e-common-proc-board: Add support for SD card UHS modes")
Signed-off-by: Aswath Govindraju <a-govindraju@...com>
Signed-off-by: Nishanth Menon <nm@...com>
Reviewed-by: Kishon Vijay Abraham I <kishon@...com>
Link: https://lore.kernel.org/r/20210305054104.10153-1-a-govindraju@ti.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 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 8c84dafb7125..f1e7da3dfa27 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -1042,13 +1042,16 @@
 		assigned-clocks = <&k3_clks 91 1>;
 		assigned-clock-parents = <&k3_clks 91 2>;
 		bus-width = <8>;
-		mmc-hs400-1_8v;
+		mmc-hs200-1_8v;
 		mmc-ddr-1_8v;
 		ti,otap-del-sel-legacy = <0xf>;
 		ti,otap-del-sel-mmc-hs = <0xf>;
 		ti,otap-del-sel-ddr52 = <0x5>;
 		ti,otap-del-sel-hs200 = <0x6>;
 		ti,otap-del-sel-hs400 = <0x0>;
+		ti,itap-del-sel-legacy = <0x10>;
+		ti,itap-del-sel-mmc-hs = <0xa>;
+		ti,itap-del-sel-ddr52 = <0x3>;
 		ti,trm-icp = <0x8>;
 		ti,strobe-sel = <0x77>;
 		dma-coherent;
@@ -1069,9 +1072,15 @@
 		ti,otap-del-sel-sdr25 = <0xf>;
 		ti,otap-del-sel-sdr50 = <0xc>;
 		ti,otap-del-sel-ddr50 = <0xc>;
+		ti,itap-del-sel-legacy = <0x0>;
+		ti,itap-del-sel-sd-hs = <0x0>;
+		ti,itap-del-sel-sdr12 = <0x0>;
+		ti,itap-del-sel-sdr25 = <0x0>;
+		ti,itap-del-sel-ddr50 = <0x2>;
 		ti,trm-icp = <0x8>;
 		ti,clkbuf-sel = <0x7>;
 		dma-coherent;
+		sdhci-caps-mask = <0x2 0x0>;
 	};
 
 	main_sdhci2: mmc@...8000 {
@@ -1089,9 +1098,15 @@
 		ti,otap-del-sel-sdr25 = <0xf>;
 		ti,otap-del-sel-sdr50 = <0xc>;
 		ti,otap-del-sel-ddr50 = <0xc>;
+		ti,itap-del-sel-legacy = <0x0>;
+		ti,itap-del-sel-sd-hs = <0x0>;
+		ti,itap-del-sel-sdr12 = <0x0>;
+		ti,itap-del-sel-sdr25 = <0x0>;
+		ti,itap-del-sel-ddr50 = <0x2>;
 		ti,trm-icp = <0x8>;
 		ti,clkbuf-sel = <0x7>;
 		dma-coherent;
+		sdhci-caps-mask = <0x2 0x0>;
 	};
 
 	usbss0: cdns-usb@...4000 {
-- 
2.30.2