From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.phycard.de ([217.6.246.34] helo=root.phytec.de) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Upwdy-0003rp-8C for barebox@lists.infradead.org; Fri, 21 Jun 2013 08:24:31 +0000 Received: from idefix.phytec.de (idefix.phytec.de [172.16.0.10]) by root.phytec.de (Postfix) with ESMTP id 04504BF0E0 for ; Fri, 21 Jun 2013 10:19:12 +0200 (CEST) From: Jan Weitzel Date: Fri, 21 Jun 2013 10:24:02 +0200 Message-Id: <1371803042-1179-1-git-send-email-j.weitzel@phytec.de> In-Reply-To: References: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 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 v2] OMAP4 do not set TPS62361_REG_ADDR_SET0 To: barebox@lists.infradead.org Don't set SET0 voltage, because it acts as boot voltage for OPP boot. Take care that the kernel doesn't drive vset gpio to low. This may happen while reseting the gpio module at initialization, look for HWMOD_INIT_NO_RESET. Signed-off-by: Jan Weitzel Reviewed-by: Nishanth Menon --- on top of 88796b1 v2: add Reviewed-by arch/arm/mach-omap/omap4_generic.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap/omap4_generic.c b/arch/arm/mach-omap/omap4_generic.c index 7200393..bf1f1a7 100644 --- a/arch/arm/mach-omap/omap4_generic.c +++ b/arch/arm/mach-omap/omap4_generic.c @@ -586,11 +586,10 @@ noinline int omap4460_scale_vcores(unsigned vsel0_pin, unsigned volt_mv) writel(0x6026, OMAP44XX_PRM_VC_CFG_I2C_CLK); /* TPS - supplies vdd_mpu on 4460 - * Setup SET1 and SET0 with right values so that kernel - * can use either of them based on its needs. + * Setup SET1 and don't touch SET0 it acts as boot voltage + * source after reset. */ - omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET0, volt_mv); omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt_mv); /* -- 1.7.0.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox