From patchwork Wed Feb 26 12:56:06 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Pratyush Yadav
X-Patchwork-Id: 1245013
X-Patchwork-Delegate: jagannadh.teki@gmail.com
Return-Path:
X-Original-To: incoming@patchwork.ozlabs.org
Delivered-To: patchwork-incoming@bilbo.ozlabs.org
Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized)
smtp.mailfrom=lists.denx.de
(client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01;
helo=phobos.denx.de;
envelope-from=u-boot-bounces@lists.denx.de;
receiver=)
Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none)
header.from=ti.com
Authentication-Results: ozlabs.org; dkim=pass (1024-bit key;
unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256
header.s=ti-com-17Q1 header.b=gESEcYwv;
dkim-atps=neutral
Received: from phobos.denx.de (phobos.denx.de
[IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01])
(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
key-exchange X25519 server-signature RSA-PSS (4096 bits))
(No client certificate requested)
by ozlabs.org (Postfix) with ESMTPS id 48SG6P74B7z9sPK
for ;
Wed, 26 Feb 2020 23:57:17 +1100 (AEDT)
Received: from h2850616.stratoserver.net (localhost [IPv6:::1])
by phobos.denx.de (Postfix) with ESMTP id 5CD1D81022;
Wed, 26 Feb 2020 13:57:00 +0100 (CET)
Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none)
header.from=ti.com
Authentication-Results: phobos.denx.de;
spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de
Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key;
unprotected) header.d=ti.com header.i=@ti.com header.b="gESEcYwv";
dkim-atps=neutral
Received: by phobos.denx.de (Postfix, from userid 109)
id 088DD8101B; Wed, 26 Feb 2020 13:56:51 +0100 (CET)
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de
X-Spam-Level:
X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE,URIBL_BLOCKED
autolearn=ham autolearn_force=no version=3.4.2
Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256
bits)) (No client certificate requested)
by phobos.denx.de (Postfix) with ESMTPS id CF53A80E8F
for ; Wed, 26 Feb 2020 13:56:45 +0100 (CET)
Authentication-Results: phobos.denx.de;
dmarc=pass (p=quarantine dis=none) header.from=ti.com
Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=p.yadav@ti.com
Received: from lelv0266.itg.ti.com ([10.180.67.225])
by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01QCuijV094540;
Wed, 26 Feb 2020 06:56:44 -0600
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com;
s=ti-com-17Q1; t=1582721804;
bh=LcmJIvwUeTMqGkrmZgvPfWEUTkJV1UWpmHq2t1fd1bc=;
h=From:To:CC:Subject:Date:In-Reply-To:References;
b=gESEcYwvdO7lhLJuukYhiqite+jwtBFPyLTDfZM5AKS8IutBSoP95IkI6HSncREZY
jOUg5MgShWyDzZf+94oLZw/9P2PCzud3kXuP8X4kRRB0lfOlFdEVVeGtu+O5ie9tzU
sxuxHnLHI9u6fWUzbSQIX66qioCk2Yl7Dol50cSo=
Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34])
by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 01QCuiEP016232
(version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL);
Wed, 26 Feb 2020 06:56:44 -0600
Received: from DFLE106.ent.ti.com (10.64.6.27) by DFLE113.ent.ti.com
(10.64.6.34) with Microsoft SMTP Server (version=TLS1_2,
cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3;
Wed, 26 Feb 2020 06:56:43 -0600
Received: from localhost.localdomain (10.64.41.19) by DFLE106.ent.ti.com
(10.64.6.27) with Microsoft SMTP Server (version=TLS1_2,
cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via
Frontend Transport; Wed, 26 Feb 2020 06:56:43 -0600
Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com
[10.172.224.153])
by localhost.localdomain (8.15.2/8.15.2) with ESMTP id 01QCu76U100370;
Wed, 26 Feb 2020 06:56:42 -0600
From: Pratyush Yadav
To: Jagan Teki , Vignesh Raghavendra
CC: Pratyush Yadav , , Sekhar Nori
Subject: [NOT FOR MERGE PATCH 16/15] arm: dts: k3-j721e: Update OSPI settings
for octal DTR mode
Date: Wed, 26 Feb 2020 18:26:06 +0530
Message-ID: <20200226125606.22684-17-p.yadav@ti.com>
X-Mailer: git-send-email 2.25.0
In-Reply-To: <20200226125606.22684-1-p.yadav@ti.com>
References: <20200226125606.22684-1-p.yadav@ti.com>
MIME-Version: 1.0
X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180
X-BeenThere: u-boot@lists.denx.de
X-Mailman-Version: 2.1.30rc1
Precedence: list
List-Id: U-Boot discussion
List-Unsubscribe: ,
List-Archive:
List-Post:
List-Help:
List-Subscribe: ,
Errors-To: u-boot-bounces@lists.denx.de
Sender: "U-Boot"
X-Virus-Scanned: clamav-milter 0.102.2 at phobos.denx.de
X-Virus-Status: Clean
The Cypress Semper flash supports octal DTR mode, so update the device
tree settings to use 8 data lines for both Rx and Tx and allow using DTR
mode on both lines.
The read delay is set to 4. The calibration sequence yields a value of 2
but since the sequence is run before the flash is switched to octal DTR
mode, it gets that value for legacy mode. In octal DTR mode the flash
needs a read delay of 4. Setting read delay here over-rides the
calibrated value.
Signed-off-by: Pratyush Yadav
---
These are the DT changes made on top of u-boot-ti/next to test these
changes.
arch/arm/dts/k3-j721e-som-p0.dtsi | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--
2.25.0
diff --git a/arch/arm/dts/k3-j721e-som-p0.dtsi b/arch/arm/dts/k3-j721e-som-p0.dtsi
index 8497ff3e3e..3e5fefd426 100644
--- a/arch/arm/dts/k3-j721e-som-p0.dtsi
+++ b/arch/arm/dts/k3-j721e-som-p0.dtsi
@@ -85,14 +85,16 @@
flash@0{
compatible = "jedec,spi-nor";
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <8>;
spi-rx-bus-width = <8>;
- spi-max-frequency = <40000000>;
+ spi-tx-dtr = <1>;
+ spi-rx-dtr = <1>;
+ spi-max-frequency = <25000000>;
cdns,tshsl-ns = <60>;
cdns,tsd2d-ns = <60>;
cdns,tchsh-ns = <60>;
cdns,tslch-ns = <60>;
- cdns,read-delay = <0>;
+ cdns,read-delay = <4>;
#address-cells = <1>;
#size-cells = <1>;
};