From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966754AbbLQNeW (ORCPT ); Thu, 17 Dec 2015 08:34:22 -0500 Received: from arroyo.ext.ti.com ([192.94.94.40]:35511 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753462AbbLQNeT (ORCPT ); Thu, 17 Dec 2015 08:34:19 -0500 From: Peter Ujfalusi To: , CC: , , , , , , Subject: [PATCH v02 2/2] ARM: DTS: am437x: Use the new DT bindings for the eDMA3 Date: Thu, 17 Dec 2015 15:33:37 +0200 Message-ID: <1450359217-3038-3-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1450359217-3038-1-git-send-email-peter.ujfalusi@ti.com> References: <1450359217-3038-1-git-send-email-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Switch to use the ti,edma3-tpcc and ti,edma3-tptc binding for the eDMA3 and enable the DMA even crossbar with ti,am335x-edma-crossbar. With the new bindings boards can customize and tweak the DMA channel priority to match their needs. With the new binding the memcpy is safe to be used since with the old binding it was not possible for a driver to know which channel is allowed to be used as non HW triggered channel. Signed-off-by: Peter Ujfalusi --- arch/arm/boot/dts/am4372.dtsi | 80 +++++++++++++++++++++++++++---------- arch/arm/boot/dts/am437x-gp-evm.dts | 9 +---- 2 files changed, 62 insertions(+), 27 deletions(-) diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index e363af1e17c6..ddcb92ebebbc 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -172,6 +172,14 @@ mboxes = <&mailbox &mbox_wkupm3>; }; + edma_xbar: dma-router@f90 { + compatible = "ti,am335x-edma-crossbar"; + reg = <0xf90 0x40>; + #dma-cells = <3>; + dma-requests = <64>; + dma-masters = <&edma>; + }; + scm_clockdomains: clockdomains { }; }; @@ -184,14 +192,46 @@ }; edma: edma@49000000 { - compatible = "ti,edma3"; - ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2"; - reg = <0x49000000 0x10000>, - <0x44e10f90 0x10>; + compatible = "ti,edma3-tpcc"; + ti,hwmods = "tpcc"; + reg = <0x49000000 0x10000>; + reg-names = "edma3_cc"; interrupts = , - , - ; - #dma-cells = <1>; + , + ; + interrupt-names = "edma3_ccint", "emda3_mperr", + "edma3_ccerrint"; + dma-requests = <64>; + #dma-cells = <2>; + + ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 5>, + <&edma_tptc2 0>; + + ti,edma-memcpy-channels = <32 33>; + }; + + edma_tptc0: tptc@49800000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc0"; + reg = <0x49800000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + + edma_tptc1: tptc@49900000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc1"; + reg = <0x49900000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + + edma_tptc2: tptc@49a00000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc2"; + reg = <0x49a00000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; }; uart0: serial@44e09000 { @@ -496,8 +536,8 @@ ti,hwmods = "mmc1"; ti,dual-volt; ti,needs-special-reset; - dmas = <&edma 24 - &edma 25>; + dmas = <&edma 24 0>, + <&edma 25 0>; dma-names = "tx", "rx"; interrupts = ; status = "disabled"; @@ -508,8 +548,8 @@ reg = <0x481d8000 0x1000>; ti,hwmods = "mmc2"; ti,needs-special-reset; - dmas = <&edma 2 - &edma 3>; + dmas = <&edma 2 0>, + <&edma 3 0>; dma-names = "tx", "rx"; interrupts = ; status = "disabled"; @@ -777,7 +817,7 @@ compatible = "ti,omap5-sham"; ti,hwmods = "sham"; reg = <0x53100000 0x300>; - dmas = <&edma 36>; + dmas = <&edma 36 0>; dma-names = "rx"; interrupts = ; }; @@ -787,8 +827,8 @@ ti,hwmods = "aes"; reg = <0x53501000 0xa0>; interrupts = ; - dmas = <&edma 6 - &edma 5>; + dmas = <&edma 6 0>, + <&edma 5 0>; dma-names = "tx", "rx"; }; @@ -797,8 +837,8 @@ ti,hwmods = "des"; reg = <0x53701000 0xa0>; interrupts = ; - dmas = <&edma 34 - &edma 33>; + dmas = <&edma 34 0>, + <&edma 33 0>; dma-names = "tx", "rx"; }; @@ -811,8 +851,8 @@ interrupts = <80>, <81>; interrupt-names = "tx", "rx"; status = "disabled"; - dmas = <&edma 8>, - <&edma 9>; + dmas = <&edma 8 2>, + <&edma 9 2>; dma-names = "tx", "rx"; }; @@ -825,8 +865,8 @@ interrupts = <82>, <83>; interrupt-names = "tx", "rx"; status = "disabled"; - dmas = <&edma 10>, - <&edma 11>; + dmas = <&edma 10 2>, + <&edma 11 2>; dma-names = "tx", "rx"; }; diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 7f00e85eebed..64d43325bcbc 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -734,8 +734,8 @@ status = "okay"; /* these are on the crossbar and are outlined in the xbar-event-map element */ - dmas = <&edma 30 - &edma 31>; + dmas = <&edma_xbar 30 0 1>, + <&edma_xbar 31 0 2>; dma-names = "tx", "rx"; vmmc-supply = <&vmmcwl_fixed>; bus-width = <4>; @@ -756,11 +756,6 @@ }; }; -&edma { - ti,edma-xbar-event-map = /bits/ 16 <1 30 - 2 31>; -}; - &uart3 { status = "okay"; pinctrl-names = "default"; -- 2.6.4