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Sat, 14 Aug 2021 11:01:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=crans.org; s=mail; t=1628931661; bh=TkeFYcChyDU6Jsom+FJLwp4/FDBtAN1AwORDqA4DVEM=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=oL0t2pREvlvc5YsXDddbXZ378bqbB4ti3TuadL3kNlm+tE99fgCB2DAGT5/dFz55x xqmFwvV19RozmPN5cRXXxi4IGFdzDW3Kbqq5N1fKLToVADykyEO0ucOaPD5zDEluu3 xNZ99QNFQur9FISN8JAfYm4SM/w0M+/wDu5AZ9jPdHZJ6zXgknP7GPpNkuVHeIR/WR 83r9pasPEmKCHQRDNXSbJw+YAnWZtoiGfaenSW4tOGkAiNYDqZ9V6VSOzPcLmKoBLs SbD9fel78M1YWuLh1qfuM4/gz3z9Nanh4yJzBDyuGJ1t+GOArdIZeX2yIikOkk1EwO Vr8N9U3128geqa8l/B6ZSFcDlwSWzxxfQNyqUv34Lie8UcUyrv0w4TJvRwoucsM/ZR yX5Y5pxKfUVhhd18k7B8VUoKBkGU6hy1vNKqSVDOp3oWhU7z4SoIp6U1ri/KcCDB5/ AwV26JIUQm/pq2GuU/mYPle1gYIToygpx1WJ5QduujH62nXjIZvfRYCnE7lrGONraN ggFdxSykYorZDAj7HtcF7I10i1PNnIQKHPoxz6UwPBnluEayrhDD3rWC8c7/COgoFU 42HPl9tJs58ef0lKyDlpICAvsfnNrtnmb2Te+dN2nw17y3wHwhxFO2gChl6Gk3ktQq +HN8YjFOrAYCmkCo9SdgviBM= Subject: Re: [PATCH for-6.2 11/25] hw/arm/stm32f100: Wire up sysclk and refclk To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org References: <20210812093356.1946-1-peter.maydell@linaro.org> <20210812093356.1946-12-peter.maydell@linaro.org> From: Alexandre IOOSS Organization: Crans Message-ID: Date: Sat, 14 Aug 2021 11:01:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210812093356.1946-12-peter.maydell@linaro.org> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="2i3JHgCfAylnbZl1oVrMtJZgSCKS1Nfp0" Received-SPF: pass client-ip=185.230.79.39; envelope-from=erdnaxe@crans.org; helo=redisdead.crans.org 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_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, 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: , Cc: Damien Hedde , Alistair Francis , Luc Michel , Joel Stanley , Subbaraya Sundeep Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --2i3JHgCfAylnbZl1oVrMtJZgSCKS1Nfp0 Content-Type: multipart/mixed; boundary="qOX3WHJHfHH3p17ELrw2lTLRWcHkGAVjN"; protected-headers="v1" From: Alexandre IOOSS To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Luc Michel , Damien Hedde , Subbaraya Sundeep , Alistair Francis , Joel Stanley Message-ID: Subject: Re: [PATCH for-6.2 11/25] hw/arm/stm32f100: Wire up sysclk and refclk References: <20210812093356.1946-1-peter.maydell@linaro.org> <20210812093356.1946-12-peter.maydell@linaro.org> In-Reply-To: <20210812093356.1946-12-peter.maydell@linaro.org> --qOX3WHJHfHH3p17ELrw2lTLRWcHkGAVjN Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 8/12/21 11:33 AM, Peter Maydell wrote: > Wire up the sysclk and refclk for the stm32f100 SoC. This SoC always > runs the systick refclk at 1/8 the frequency of the main CPU clock, > so the board code only needs to provide a single sysclk clock. >=20 > Because there is only one board using this SoC, we convert the SoC > and the board together, rather than splitting it into "add clock to > SoC; connect clock in board; add error check in SoC code that clock > is wired up". >=20 > When the systick device starts honouring its clock inputs, this will > fix an emulation inaccuracy in the stm32vldiscovery board where the > systick reference clock was running at 1MHz rather than 3MHz. >=20 > Signed-off-by: Peter Maydell Reviewed-by: Alexandre Iooss -- Alexandre --qOX3WHJHfHH3p17ELrw2lTLRWcHkGAVjN-- --2i3JHgCfAylnbZl1oVrMtJZgSCKS1Nfp0 Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsF5BAABCAAjFiEELTca0n4rvHeX4bdZbHknjz/NzAIFAmEXhkwFAwAAAAAACgkQbHknjz/NzALL Ew/9HwwbqXQn3bMh6m6u+iHonCxIplfihawK7SyLGwAh7tJP4+poqq54s9Jy8OkaQ3iWzWzEZEMJ IUYoCsht3xwz9KAPIEnRjlVCkCDVh8ggTL92/NRPEbH9zdEmPkNis46dyFHrt8za0ASvyhF0Mk7m otPNRwMQQ2O56K1cRueTdHTKByOPQN5xaeeUUWKop6rE9MTA14gtG/B8cHz+a6C7dnFLf8AthUKa UDBaUkWXnixb+SGZW6UmJmEhSGHA1aSgwlKGTZ+9EX++DUL+sy/SJ2XBSyn7775HFS1oVB9jC6FK deMU9/13tS79fYBAjF7jNyXbq2HiFWUN/wv0OBbmr9e28AKRmO+r8grKX1F92mSdlN5LJCtjipQF wg3vue1MH4CLWiWJGTzFzsVZOlwXVf9EsIUTVmSXqdK5GimlwDZjabPArpGYtUFF6b9zwvAVdMRK NDMi757Nyh2QZyrGL06JGzH1z5MXgtcrIpQlX/nR+vPdpHwwEmpmG7az3YAVYxnQgWQaVM484pRs SY0xZyYBOqoNcbAl88hJ5RhnrFLdPXas/QwrrlH1j6iikKWoN5nDsZbsFfIaTN0GUHS/z29TvogG cTyMDnF7RkSu2W/pv7NUUR/ONt0/uRp1DFbmqPH0EFlIwRgPxd6SDbXzool5A39jLDJnjXiT4rTF pWE= =aeGe -----END PGP SIGNATURE----- --2i3JHgCfAylnbZl1oVrMtJZgSCKS1Nfp0--