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 1WGu3I-0003BB-NM for barebox@lists.infradead.org; Fri, 21 Feb 2014 17:38:22 +0000 From: Philipp Zabel Date: Fri, 21 Feb 2014 18:37:57 +0100 Message-Id: <1393004277-9417-1-git-send-email-p.zabel@pengutronix.de> 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] ARM i.MX6: Gate clocks to graphics processing units To: barebox@lists.infradead.org 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 --- 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