From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:60795 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933319AbcECAgv (ORCPT ); Mon, 2 May 2016 20:36:51 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tero Kristo , Peter Ujfalusi , Tony Lindgren Subject: [PATCH 4.5 009/200] ARM: dts: am43xx: fix edma memcpy channel allocation Date: Mon, 2 May 2016 17:10:08 -0700 Message-Id: <20160503000554.931668846@linuxfoundation.org> In-Reply-To: <20160503000554.631204776@linuxfoundation.org> References: <20160503000554.631204776@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.5-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tero Kristo commit d41676ddddef27224a398609d874055866694cfa upstream. EDMA was allocating DMA channels 32 and 33 for memcpy usage, out of which channel 33 is actually used by DES crypto engine. This bad allocation of the channel causes a crash in the DES crypto engine, as the channel gets configured for memcpy usage instead of hardware <-> memory DMA. Fixed by allocating DMA channels 58 and 59 for memcpy usage (I2C0 RX/TX), which are not used by anybody. Fixes: cce1ee000187 ("ARM: DTS: am437x: Use the new DT bindings for the eDMA3") Signed-off-by: Tero Kristo Suggested-by: Peter Ujfalusi Signed-off-by: Tony Lindgren Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/am4372.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -207,7 +207,7 @@ ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 5>, <&edma_tptc2 0>; - ti,edma-memcpy-channels = <32 33>; + ti,edma-memcpy-channels = <58 59>; }; edma_tptc0: tptc@49800000 {