From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-il1-x12f.google.com ([2607:f8b0:4864:20::12f]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kPNPU-0000To-QX for barebox@lists.infradead.org; Mon, 05 Oct 2020 10:08:02 +0000 Received: by mail-il1-x12f.google.com with SMTP id c5so7239743ilk.11 for ; Mon, 05 Oct 2020 03:08:00 -0700 (PDT) MIME-Version: 1.0 From: "Robert Carnecky (Neopsis)" Date: Mon, 5 Oct 2020 12:07:48 +0200 Message-ID: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Mini UART on RaspberryPi CM3/CM3+ To: barebox@lists.infradead.org Did anybody successfully configured Raspberry CM3/CM3+ mini-UART as the Barebox console? I found a thread on this list discussing the issue (https://www.mail-archive.com/barebox@lists.infradead.org/msg35235.html), unfortunately without any solution. What I need: * UART0 on pins 32/33 (technology access over rs-485) * UART1 (miniUART) on pins 14/15 (console) My current config.txt boots fine my raspberry kernel (zImage built using builroot): kernel=zImage enable_uart=1 dtoverlay=uart0,txd0_pin=32,rxd0_pin=33,pin_func=7 dtoverlay=uart1,txd1_pin=14,rxd1_pin=15 Now I would like to switch to Barebox as a bootloader. I compiled the barebox image with * CONSOLE_ACTIVATE_NONE = Y * 'stdout-path=&uart1;' in 'arch/arm/dts/bcm2837-rpi-cm3.dts' . and changed my kernel in config.txt kernel=barebox.img I cannot see any output on pins 14/15 e.g. UART1, no barebox console, no kernel console. Any idea what's wrong here? Robert _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox