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[83.52.54.50]) by smtp.gmail.com with ESMTPSA id h5sm7562528wrt.31.2020.09.02.06.49.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 02 Sep 2020 06:49:08 -0700 (PDT) Subject: Re: flash programmer support in arm targets To: Ronald Steinke , qemu-arm@nongnu.org, qemu-devel References: From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: <4cb93951-770a-f64f-fffc-4ab1c8e8ff7f@amsat.org> Date: Wed, 2 Sep 2020 15:49:08 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::431; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x431.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, NICE_REPLY_A=-0.324, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi Ronald, On 9/2/20 3:30 PM, Ronald Steinke wrote: > Are there arm targets that have hardware support for the internal flash > programmer registers (e.g. FMD/FMA/FMC in lm3s6965)? No, the flash controller of the Stellaris LM3S6965 is not implemented. Note that it is very simple (2 operations, 6 registers + 1 set of protected bits), thus easy to implement and test. You can have a look at hw/block/nand.c to have an idea how to start. Regards, Phil.