From patchwork Tue Feb 19 08:32:14 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Manjunathappa, Prakash" X-Patchwork-Id: 2162261 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from comal.ext.ti.com (comal.ext.ti.com [198.47.26.152]) by patchwork2.kernel.org (Postfix) with ESMTP id A85D1DF24C for ; Tue, 19 Feb 2013 08:34:56 +0000 (UTC) Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r1J8V09M009295; Tue, 19 Feb 2013 02:31:01 -0600 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r1J8V0HD022380; Tue, 19 Feb 2013 02:31:00 -0600 Received: from dlelxv24.itg.ti.com (172.17.1.199) by dfle72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.1.323.3; Tue, 19 Feb 2013 02:31:00 -0600 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id r1J8V0G8002070; Tue, 19 Feb 2013 02:31:00 -0600 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 05DA980627; Tue, 19 Feb 2013 02:31:00 -0600 (CST) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dbdp20.itg.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by linux.omap.com (Postfix) with ESMTP id A674280626 for ; Tue, 19 Feb 2013 02:30:57 -0600 (CST) Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r1J8Uqsl026631; Tue, 19 Feb 2013 14:00:52 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Tue, 19 Feb 2013 14:00:52 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id r1J8UjYH009290; Tue, 19 Feb 2013 14:00:46 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id 5966D158002; Tue, 19 Feb 2013 14:00:45 +0530 (IST) Received: from ubuntu-psp-linux.india.ext.ti.com (ubuntu-psp-linux [192.168.247.46]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r1J8UfR05905; Tue, 19 Feb 2013 14:00:42 +0530 (IST) From: "Manjunathappa, Prakash" To: Subject: [PATCH] ARM: davinci: da850 evm: update clock rate for UART 1/2 DT nodes Date: Tue, 19 Feb 2013 14:02:14 +0530 Message-ID: <1361262734-8540-1-git-send-email-prakash.pm@ti.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 CC: , , , , , X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com DT kernel with latest of denx SPL U-boot boots with garbled UART logs. This is because in U-boot UART2 gets sourced by PLL0_SYSCLK2 configured for 150MHz. But later in kernel UART2 gets mapped to PLL1_SYSCLK2 and is configured for 132MHz not for 150MHz. PLL1 is configured for 264MHz to support mDDR on the EVM. That is memory controller driving mDDR can be configured for 150MHz and mDDR it self can operate at 132MHz. So override UART1 and UART2 DT node clock-frequency property with rate available on da850 EVM. Signed-off-by: Manjunathappa, Prakash --- arch/arm/boot/dts/da850-evm.dts | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts index f712fb6..c359872 100644 --- a/arch/arm/boot/dts/da850-evm.dts +++ b/arch/arm/boot/dts/da850-evm.dts @@ -22,9 +22,11 @@ status = "okay"; }; serial1: serial@1d0c000 { + clock-frequency = <132000000>; status = "okay"; }; serial2: serial@1d0d000 { + clock-frequency = <132000000>; status = "okay"; }; rtc0: rtc@1c23000 {