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From: Sjoerd Simons <sjoerd@collabora.com>
To: Nishanth Menon <nm@ti.com>
Cc: martyn.welch@collabora.com, Nitin Yadav <n-yadav@ti.com>,
	Aswath Govindraju <a-govindraju@ti.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Rob Herring <robh+dt@kernel.org>, Tero Kristo <kristo@kernel.org>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/3] arm64: dts: ti: k3-am62-main: Update OTAP and ITAP delay select
Date: Wed, 21 Dec 2022 14:30:48 +0100	[thread overview]
Message-ID: <20221221133051.1069480-2-sjoerd@collabora.com> (raw)
In-Reply-To: <20221221133051.1069480-1-sjoerd@collabora.com>

From: Nitin Yadav <n-yadav@ti.com>

UHS Class U1 sd-card are not getting detected due to incorrect
OTAP/ITAP delay select values in linux. Update OTAP and ITAP
delay select values for various speed modes. For sdhci0, update
OTAP delay values for ddr52 & HS200 and add ITAP delay for legacy
& mmc-hs. For sdhci1 & sdhci2, update OTAP & ITAP delay select
recommended as in RIOT for various speed modes.

Signed-off-by: Nitin Yadav <n-yadav@ti.com>
[cherry-pick from vendor BSP]
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>

---

Changes in v2:
  - Rebase against linux-next 20221220

 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 46 ++++++++++++------------
 1 file changed, 24 insertions(+), 22 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 072903649d6e..466b94d1cee9 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -501,8 +501,10 @@ sdhci0: mmc@fa10000 {
 		ti,clkbuf-sel = <0x7>;
 		ti,otap-del-sel-legacy = <0x0>;
 		ti,otap-del-sel-mmc-hs = <0x0>;
-		ti,otap-del-sel-ddr52 = <0x9>;
-		ti,otap-del-sel-hs200 = <0x6>;
+		ti,otap-del-sel-ddr52 = <0x5>;
+		ti,otap-del-sel-hs200 = <0x5>;
+		ti,itap-del-sel-legacy = <0xa>;
+		ti,itap-del-sel-mmc-hs = <0x1>;
 		status = "disabled";
 	};
 
@@ -514,17 +516,17 @@ sdhci1: mmc@fa00000 {
 		clocks = <&k3_clks 58 5>, <&k3_clks 58 6>;
 		clock-names = "clk_ahb", "clk_xin";
 		ti,trm-icp = <0x2>;
-		ti,otap-del-sel-legacy = <0x0>;
+		ti,otap-del-sel-legacy = <0x8>;
 		ti,otap-del-sel-sd-hs = <0x0>;
-		ti,otap-del-sel-sdr12 = <0xf>;
-		ti,otap-del-sel-sdr25 = <0xf>;
-		ti,otap-del-sel-sdr50 = <0xc>;
-		ti,otap-del-sel-sdr104 = <0x6>;
-		ti,otap-del-sel-ddr50 = <0x9>;
-		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,otap-del-sel-sdr12 = <0x0>;
+		ti,otap-del-sel-sdr25 = <0x0>;
+		ti,otap-del-sel-sdr50 = <0x8>;
+		ti,otap-del-sel-sdr104 = <0x7>;
+		ti,otap-del-sel-ddr50 = <0x4>;
+		ti,itap-del-sel-legacy = <0xa>;
+		ti,itap-del-sel-sd-hs = <0x1>;
+		ti,itap-del-sel-sdr12 = <0xa>;
+		ti,itap-del-sel-sdr25 = <0x1>;
 		ti,clkbuf-sel = <0x7>;
 		bus-width = <4>;
 		status = "disabled";
@@ -538,17 +540,17 @@ sdhci2: mmc@fa20000 {
 		clocks = <&k3_clks 184 5>, <&k3_clks 184 6>;
 		clock-names = "clk_ahb", "clk_xin";
 		ti,trm-icp = <0x2>;
-		ti,otap-del-sel-legacy = <0x0>;
+		ti,otap-del-sel-legacy = <0x8>;
 		ti,otap-del-sel-sd-hs = <0x0>;
-		ti,otap-del-sel-sdr12 = <0xf>;
-		ti,otap-del-sel-sdr25 = <0xf>;
-		ti,otap-del-sel-sdr50 = <0xc>;
-		ti,otap-del-sel-sdr104 = <0x6>;
-		ti,otap-del-sel-ddr50 = <0x9>;
-		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,otap-del-sel-sdr12 = <0x0>;
+		ti,otap-del-sel-sdr25 = <0x0>;
+		ti,otap-del-sel-sdr50 = <0x8>;
+		ti,otap-del-sel-sdr104 = <0x7>;
+		ti,otap-del-sel-ddr50 = <0x8>;
+		ti,itap-del-sel-legacy = <0xa>;
+		ti,itap-del-sel-sd-hs = <0xa>;
+		ti,itap-del-sel-sdr12 = <0xa>;
+		ti,itap-del-sel-sdr25 = <0x1>;
 		ti,clkbuf-sel = <0x7>;
 		status = "disabled";
 	};
-- 
2.39.0


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  reply	other threads:[~2022-12-21 13:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-21 13:30 [PATCH v2 0/3] Improve K3-am625-sk support (USB, MMC) Sjoerd Simons
2022-12-21 13:30 ` Sjoerd Simons [this message]
2022-12-21 13:30 ` [PATCH v2 2/3] arm64: dts: ti: k3-am62-main: Add support for USB Sjoerd Simons
2022-12-21 13:30 ` [PATCH v2 3/3] arm64: dts: ti: k3-am625-sk: " Sjoerd Simons

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