From patchwork Thu Nov 6 17:36:06 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [2/2] arm: boot: dts: am4372: enable dwc3 suspend PHY quirk X-Patchwork-Submitter: Felipe Balbi X-Patchwork-Id: 40364 Message-Id: <1415295366-593-2-git-send-email-balbi@ti.com> To: Linux USB Mailing List Cc: Linux OMAP Mailing List , Tony Lindgren , Linux ARM Kernel Mailing List , Felipe Balbi Date: Thu, 6 Nov 2014 11:36:06 -0600 From: Felipe Balbi List-Id: Whenever Suspend PHY bit is set on AM437x devices, USB will not work due to Set EP Configuration command always failing. This was only found after a recent commit 2164a47 (usb: dwc3: set SUSPHY bit for all cores, which will be merged for v3.19) added a missing *required* step to dwc3 initialization. Synopsys Databook requires that we enable Suspend PHY bit after initialization but that, unfortunately, breaks AM437x. Signed-off-by: Felipe Balbi Acked-by: Tony Lindgren --- arch/arm/boot/dts/am4372.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 46660ff..e19068d 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -817,6 +817,8 @@ maximum-speed = "high-speed"; dr_mode = "otg"; status = "disabled"; + snps,dis_u3_susphy_quirk; + snps,dis_u2_susphy_quirk; }; }; @@ -839,6 +841,8 @@ maximum-speed = "high-speed"; dr_mode = "otg"; status = "disabled"; + snps,dis_u3_susphy_quirk; + snps,dis_u2_susphy_quirk; }; };