From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A598CC2D0A3 for ; Tue, 3 Nov 2020 15:20:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F11A20780 for ; Tue, 3 Nov 2020 15:20:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727709AbgKCPUr (ORCPT ); Tue, 3 Nov 2020 10:20:47 -0500 Received: from imap2.colo.codethink.co.uk ([78.40.148.184]:42836 "EHLO imap2.colo.codethink.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728386AbgKCPTU (ORCPT ); Tue, 3 Nov 2020 10:19:20 -0500 Received: from cpc79921-stkp12-2-0-cust288.10-2.cable.virginm.net ([86.16.139.33] helo=[192.168.0.10]) by imap2.colo.codethink.co.uk with esmtpsa (Exim 4.92 #3 (Debian)) id 1kZy5T-0003Yi-Uc; Tue, 03 Nov 2020 15:19:07 +0000 Subject: Re: [RFC PATCH 2/3] RISC-V: Initial DTS for Microchip ICICLE board To: Atish Patra Cc: devicetree@vger.kernel.org, Albert Ou , Cyril.Jean@microchip.com, Daire McNamara , Anup Patel , "linux-kernel@vger.kernel.org List" , Atish Patra , Rob Herring , Alistair Francis , Paul Walmsley , Palmer Dabbelt , linux-riscv , Padmarao Begari References: <20201028232759.1928479-1-atish.patra@wdc.com> <20201028232759.1928479-3-atish.patra@wdc.com> <41f1248b-78c6-bac1-410b-9e222368c5f6@codethink.co.uk> <2d7cc829-5df6-6b94-4c8f-9bae6080444e@codethink.co.uk> From: Ben Dooks Organization: Codethink Limited. Message-ID: Date: Tue, 3 Nov 2020 15:19:06 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/11/2020 15:07, Atish Patra wrote: >>> We could just modify the reg size but to allow more memory. I tried >>> that for Linux but it didn't boot. >>> Probably, DDR init code in HSS only initialized 1GB of memory. >> Yes, it is only looking at the low window which is 1GiB max. >> If it used the upper window it would get the 16GiB. >> >> I don't know how no-one noticed this issue before shipping a board >> out with this. I have updated the firmware on my second board but >> this only seems to currently fix a reboot issue with the eMMC. >> > We can't update the DT for Linux until there is a public release of > the updated firmware > with 2GB enabled. Yeah, it is really annoying the boards turned up with a number of issues including the half memory. I assume there will be a new release of HSS and U-boot which at worse can insert new memory nodes into the device tree. -- Ben Dooks http://www.codethink.co.uk/ Senior Engineer Codethink - Providing Genius https://www.codethink.co.uk/privacy.html