From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WHqxC-0003A2-F0 for barebox@lists.infradead.org; Mon, 24 Feb 2014 08:31:59 +0000 Date: Mon, 24 Feb 2014 09:31:36 +0100 From: Sascha Hauer Message-ID: <20140224083136.GS17250@pengutronix.de> References: <1393004277-9417-1-git-send-email-p.zabel@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1393004277-9417-1-git-send-email-p.zabel@pengutronix.de> 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: Re: [PATCH] ARM i.MX6: Gate clocks to graphics processing units To: Philipp Zabel Cc: barebox@lists.infradead.org On Fri, Feb 21, 2014 at 06:37:57PM +0100, Philipp Zabel wrote: > This patch gates the clocks to GPU, IPU, and VPU units by default, > significantly reducing the VDDSOC power draw while barebox is running. > > Signed-off-by: Philipp Zabel Ok. I hope we remember to revert this change when we add the 3d driver to barebox ;) Sascha > --- > arch/arm/mach-imx/clk-imx6.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/mach-imx/clk-imx6.c b/arch/arm/mach-imx/clk-imx6.c > index c32b6cc..ac86074 100644 > --- a/arch/arm/mach-imx/clk-imx6.c > +++ b/arch/arm/mach-imx/clk-imx6.c > @@ -307,12 +307,12 @@ static int imx6_ccm_probe(struct device_d *dev) > clkdev_add_physbase(clks[enfc_podf], MX6_GPMI_BASE_ADDR, NULL); > > writel(0xffffffff, ccm_base + CCGR0); > - writel(0xffffffff, ccm_base + CCGR1); > + writel(0xf0ffffff, ccm_base + CCGR1); /* gate GPU3D, GPU2D */ > writel(0xffffffff, ccm_base + CCGR2); > - writel(0xffffffff, ccm_base + CCGR3); > + writel(0x3fff0000, ccm_base + CCGR3); /* gate OpenVG, LDB, IPU1, IPU2 */ > writel(0xffffffff, ccm_base + CCGR4); > writel(0xffffffff, ccm_base + CCGR5); > - writel(0xffffffff, ccm_base + CCGR6); > + writel(0xffff3fff, ccm_base + CCGR6); /* gate VPU */ > writel(0xffffffff, ccm_base + CCGR7); > > clk_enable(clks[pll6_enet]); > -- > 1.9.0.rc3 > > > _______________________________________________ > barebox mailing list > barebox@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox