From owner-svn-src-head@FreeBSD.ORG Thu Jan 29 01:59:43 2015 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E337F281; Thu, 29 Jan 2015 01:59:43 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CEFA1777; Thu, 29 Jan 2015 01:59:43 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t0T1xhFm099353; Thu, 29 Jan 2015 01:59:43 GMT (envelope-from gonzo@FreeBSD.org) Received: (from gonzo@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t0T1xhWj099352; Thu, 29 Jan 2015 01:59:43 GMT (envelope-from gonzo@FreeBSD.org) Message-Id: <201501290159.t0T1xhWj099352@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: gonzo set sender to gonzo@FreeBSD.org using -f From: Oleksandr Tymoshenko Date: Thu, 29 Jan 2015 01:59:43 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r277871 - head/sys/arm/ti/am335x X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Jan 2015 01:59:44 -0000 Author: gonzo Date: Thu Jan 29 01:59:42 2015 New Revision: 277871 URL: https://svnweb.freebsd.org/changeset/base/277871 Log: Set LCDC clock frequency to 2*148500 KHz Minimum LCDC is 2 so clock freq shouild be 2*max_pixel_clock. Maximum pixel clock for HDMI is 148500 (1920x1080). But AM335x can not run in this mode due to bandwidth and clock limitations Modified: head/sys/arm/ti/am335x/am335x_prcm.c Modified: head/sys/arm/ti/am335x/am335x_prcm.c ============================================================================== --- head/sys/arm/ti/am335x/am335x_prcm.c Thu Jan 29 01:55:24 2015 (r277870) +++ head/sys/arm/ti/am335x/am335x_prcm.c Thu Jan 29 01:59:42 2015 (r277871) @@ -729,10 +729,10 @@ am335x_clk_lcdc_activate(struct ti_clock DELAY(10); /* - * For now set frequency to 5xSYSFREQ - * More flexible control might be required + * For now set frequency to 99*SYSFREQ/8 which is twice as + * HDMI 1080p pixel clock (minimum LCDC freq divisor is 2) */ - prcm_write_4(CM_WKUP_CM_CLKSEL_DPLL_DISP, (5 << 8) | 0); + prcm_write_4(CM_WKUP_CM_CLKSEL_DPLL_DISP, (99 << 8) | 8); /* Locked mode */ prcm_write_4(CM_WKUP_CM_CLKMODE_DPLL_DISP, 0x7);