Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755559AbcLOLQX (ORCPT ); Thu, 15 Dec 2016 06:16:23 -0500 Received: from 217-155-41-104.dsl.in-addr.zen.co.uk ([217.155.41.104]:60900 "EHLO centos1.newflow.co.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754603AbcLOLQV (ORCPT ); Thu, 15 Dec 2016 06:16:21 -0500 X-Greylist: delayed 1432 seconds by postgrey-1.27 at vger.kernel.org; Thu, 15 Dec 2016 06:16:21 EST From: Mark Jackson Subject: [PATCH] Update Nanobone dts file to add external FRAM chip Cc: "linux-omap@vger.kernel.org" , lkml To: Tony Lindgren Message-ID: <3e63c74c-1808-46bd-4c63-5ea049cca4e2@newflow.co.uk> Date: Thu, 15 Dec 2016 10:52:13 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1623 Lines: 61 >From v4.2+ the GPMC code has been changed to reset all the bootloader GPMC settings when the kernel starts. As such, this DTS file now needs the external FRAM defined. Signed-off-by: Mark Jackson --- arch/arm/boot/dts/am335x-nano.dts | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/am335x-nano.dts b/arch/arm/boot/dts/am335x-nano.dts index 483d585..807494b 100644 --- a/arch/arm/boot/dts/am335x-nano.dts +++ b/arch/arm/boot/dts/am335x-nano.dts @@ -249,7 +249,8 @@ #address-cells = <2>; #size-cells = <1>; - ranges = <0 0 0x08000000 0x08000000>; /* CS0: NOR 128M */ + ranges = <0 0 0x08000000 0x08000000>, /* CS0: NOR 128M */ + <1 0 0x1c000000 0x01000000>; /* CS1: FRAM 16M */ nor@0,0 { reg = <0 0x00000000 0x08000000>; @@ -342,6 +343,34 @@ reg = <0x04000000 0x04000000>; /* 64MB */ }; }; + + fram@1,0 { + reg = <1 0x00000000 0x01000000>; + bank-width = <2>; + + gpmc,mux-add-data = <2>; + + gpmc,sync-clk-ps = <0>; + gpmc,cs-on-ns = <0>; + gpmc,cs-rd-off-ns = <160>; + gpmc,cs-wr-off-ns = <160>; + gpmc,adv-on-ns = <10>; + gpmc,adv-rd-off-ns = <20>; + gpmc,adv-wr-off-ns = <20>; + gpmc,oe-on-ns = <30>; + gpmc,oe-off-ns = <150>; + gpmc,we-on-ns = <30>; + gpmc,we-off-ns = <150>; + gpmc,rd-cycle-ns = <160>; + gpmc,wr-cycle-ns = <160>; + gpmc,access-ns = <130>; + gpmc,page-burst-access-ns = <10>; + gpmc,cycle2cycle-samecsen; + gpmc,cycle2cycle-diffcsen; + gpmc,cycle2cycle-delay-ns = <10>; + gpmc,wr-data-mux-bus-ns = <30>; + gpmc,wr-access-ns = <0>; + }; }; &mac { -- 2.7.4