From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-vi1eur05olkn2090.outbound.protection.outlook.com ([40.92.90.90] helo=EUR05-VI1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jJv7s-0000VD-Px for barebox@lists.infradead.org; Thu, 02 Apr 2020 08:23:04 +0000 From: Michael Graichen Date: Thu, 2 Apr 2020 08:22:55 +0000 Message-ID: Content-Language: de-DE MIME-Version: 1.0 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: [PATCH 6/7] Zedboard turn on LED on startup To: "barebox@lists.infradead.org" Turns on the LED on MIO7 on the Zedboard to have a signal diff --git a/arch/arm/boards/avnet-zedboard/lowlevel.c b/arch/arm/boards/avnet-zedboard/lowlevel.c index b8001fcf6..eb85df507 100644 --- a/arch/arm/boards/avnet-zedboard/lowlevel.c +++ b/arch/arm/boards/avnet-zedboard/lowlevel.c @@ -306,6 +306,16 @@ ENTRY_FUNCTION(start_avnet_zedboard, r0, r1, r2) void *fdt = __dtb_zynq_zed_start + get_runtime_offset(); + /* MIO_07 in GPIO Mode 3.3V VIO, can be uncomented because it is the default value */ + writel(0x0000DF0D, ZYNQ_SLCR_UNLOCK); + writel(0x00000600, 0xF800071C ); + writel(0x0000767B, ZYNQ_SLCR_LOCK); + + /* turns on the LED MIO_07 */ + writel((1<<7), 0xe000a204 ); // Direction + writel((1<<7), 0xe000a208 ); // Output enable + writel((1<<7), 0xe000a040 ); // DATA Register + arm_cpu_lowlevel_init(); zynq_cpu_lowlevel_init(); _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox