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[83.42.66.34]) by smtp.gmail.com with ESMTPSA id t125sm8449596wmf.17.2019.12.20.17.02.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Dec 2019 17:02:39 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Michael Rolnik Subject: [PATCH v2 1/8] hw/char/avr: Reduce USART I/O size Date: Sat, 21 Dec 2019 02:02:19 +0100 Message-Id: <20191221010226.9230-2-f4bug@amsat.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191221010226.9230-1-f4bug@amsat.org> References: <20191221010226.9230-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::443 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: Sarah Harris , Joaquin de Andres , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Pavel Dovgalyuk , Aleksandar Markovic Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Per the datasheet the USART uses 7 consecutive 8-bit registers. Signed-off-by: Philippe Mathieu-Daudé --- hw/char/avr_usart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/char/avr_usart.c b/hw/char/avr_usart.c index cb307fe23d..becdb87847 100644 --- a/hw/char/avr_usart.c +++ b/hw/char/avr_usart.c @@ -280,7 +280,7 @@ static void avr_usart_init(Object *obj) sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->rxc_irq); sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->dre_irq); sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->txc_irq); - memory_region_init_io(&s->mmio, obj, &avr_usart_ops, s, TYPE_AVR_USART, 8); + memory_region_init_io(&s->mmio, obj, &avr_usart_ops, s, TYPE_AVR_USART, 7); sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio); qdev_init_gpio_in(DEVICE(s), avr_usart_pr, 1); s->enabled = true; -- 2.21.0