From: Bhavya Kapoor <b-kapoor@ti.com>
To: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Cc: <conor+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
<robh+dt@kernel.org>, <kristo@kernel.org>, <vigneshr@ti.com>,
<nm@ti.com>, <b-kapoor@ti.com>
Subject: [PATCH 1/3] arm64: dts: ti: k3-j7200-main: Add Itap Delay Value For DDR52 speed mode
Date: Fri, 1 Dec 2023 13:50:43 +0530 [thread overview]
Message-ID: <20231201082045.790478-2-b-kapoor@ti.com> (raw)
In-Reply-To: <20231201082045.790478-1-b-kapoor@ti.com>
DDR52 speed mode is enabled for eMMC in J7200 but its Itap Delay Value
is not present in the device tree. Thus, add Itap Delay Value for eMMC
High Speed DDR which is DDR52 speed mode for J7200 SoC according to
datasheet for J7200.
[+] Refer to : section 7.9.5.16.1 MMCSD0 - eMMC Interface, in
J7200 datasheet
- https://www.ti.com/lit/ds/symlink/dra821u-q1.pdf
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
---
arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index 264913f83287..39ce465c8e00 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -647,6 +647,7 @@ main_sdhci0: mmc@4f80000 {
ti,otap-del-sel-hs400 = <0x5>;
ti,itap-del-sel-legacy = <0x10>;
ti,itap-del-sel-mmc-hs = <0xa>;
+ ti,itap-del-sel-ddr52 = <0x3>;
ti,strobe-sel = <0x77>;
ti,clkbuf-sel = <0x7>;
ti,trm-icp = <0x8>;
--
2.34.1
next prev parent reply other threads:[~2023-12-01 8:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-01 8:20 [PATCH 0/3] arm64: dts: ti: Add Itap Delay Value For High Speed DDR Bhavya Kapoor
2023-12-01 8:20 ` Bhavya Kapoor [this message]
2023-12-05 19:22 ` [PATCH 1/3] arm64: dts: ti: k3-j7200-main: Add Itap Delay Value For DDR52 speed mode Judith Mendez
2023-12-01 8:20 ` [PATCH 2/3] arm64: dts: ti: k3-j721s2-main: Add Itap Delay Value For DDR50 " Bhavya Kapoor
2023-12-05 19:24 ` Judith Mendez
2023-12-01 8:20 ` [PATCH 3/3] arm64: dts: ti: k3-j784s4-main: " Bhavya Kapoor
2023-12-05 19:25 ` Judith Mendez
2023-12-05 18:31 ` [PATCH 0/3] arm64: dts: ti: Add Itap Delay Value For High Speed DDR Kumar, Udit
2023-12-14 11:07 ` Bhavya Kapoor
2023-12-14 15:00 ` Kumar, Udit
2023-12-15 17:21 ` Nishanth Menon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231201082045.790478-2-b-kapoor@ti.com \
--to=b-kapoor@ti.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=kristo@kernel.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nm@ti.com \
--cc=robh+dt@kernel.org \
--cc=vigneshr@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®