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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id j207sm5494771wmj.40.2021.09.01.03.37.17 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Sep 2021 03:37:17 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 33/51] armsse: Wire up systick cpuclk clock Date: Wed, 1 Sep 2021 11:36:35 +0100 Message-Id: <20210901103653.13435-34-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210901103653.13435-1-peter.maydell@linaro.org> References: <20210901103653.13435-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32b.google.com 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, 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" Wire up the cpuclk for the systick devices to the SSE object's existing mainclk clock. We do not wire up the refclk because the SSE subsystems do not provide a refclk. (This is documented in the IoTKit and SSE-200 TRMs; the SSE-300 TRM doesn't mention it but we assume it follows the same approach.) When we update the systick device later to honour "no refclk connected" this will fix a minor emulation inaccuracy for the SSE-based boards. Signed-off-by: Peter Maydell Acked-by: Alistair Francis Reviewed-by: Luc Michel Message-id: 20210812093356.1946-8-peter.maydell@linaro.org --- hw/arm/armsse.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/arm/armsse.c b/hw/arm/armsse.c index a1456cb0f42..70b52c3d4b9 100644 --- a/hw/arm/armsse.c +++ b/hw/arm/armsse.c @@ -995,6 +995,9 @@ static void armsse_realize(DeviceState *dev, Error **errp) int j; char *gpioname; + qdev_connect_clock_in(cpudev, "cpuclk", s->mainclk); + /* The SSE subsystems do not wire up a systick refclk */ + qdev_prop_set_uint32(cpudev, "num-irq", s->exp_numirq + NUM_SSE_IRQS); /* * In real hardware the initial Secure VTOR is set from the INITSVTOR* -- 2.20.1