From: Roger Quadros <rogerq@ti.com>
To: kishon@ti.com, tony@atomide.com
Cc: robh+dt@kernel.org, nsekhar@ti.com, linux-omap@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Roger Quadros <rogerq@ti.com>
Subject: [PATCH 3/3] ARM: dts: dra7: workaround silicon limitation i845
Date: Tue, 23 Aug 2016 11:57:41 +0300 [thread overview]
Message-ID: <1471942661-1728-4-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1471942661-1728-1-git-send-email-rogerq@ti.com>
From: Sekhar Nori <nsekhar@ti.com>
Silicon limitation i845 documents how to cope with false
disconnection condition on USB2 PHY. Reference: AM572x
silicon errata document SPRZ429H, revised January 2016.
Using compatible "ti,dra7x-usb2" enables the recommended
software workaround for this issue. Use it for USB1 PHY.
The workaround is already in place for USB2 PHY.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
---
arch/arm/boot/dts/dra7.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index d9bfb94..df0dcbc 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1413,7 +1413,7 @@
ti,hwmods = "ocp2scp1";
usb2_phy1: phy@4a084000 {
- compatible = "ti,omap-usb2";
+ compatible = "ti,dra7x-usb2", "ti,omap-usb2";
reg = <0x4a084000 0x400>;
syscon-phy-power = <&scm_conf 0x300>;
clocks = <&usb_phy1_always_on_clk32k>,
--
2.7.4
next prev parent reply other threads:[~2016-08-23 8:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-23 8:57 [PATCH 0/3] phy: omap-usb2: Fixes for v4.9 Roger Quadros
2016-08-23 8:57 ` [PATCH 1/3] phy: omap-usb2: support suspend/resume Roger Quadros
2016-08-23 8:57 ` [PATCH 2/3] dt-bindings: phy: ti: add documentation for ti,dra7x-usb2 Roger Quadros
[not found] ` <1471942661-1728-3-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2016-08-23 20:03 ` Rob Herring
2016-08-23 8:57 ` Roger Quadros [this message]
2016-08-26 15:28 ` [PATCH 3/3] ARM: dts: dra7: workaround silicon limitation i845 Tony Lindgren
[not found] ` <1471942661-1728-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2016-09-02 12:17 ` [PATCH 0/3] phy: omap-usb2: Fixes for v4.9 Kishon Vijay Abraham I
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