From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-gh0-f173.google.com ([209.85.160.173]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1USXD2-0003ht-FL for barebox@lists.infradead.org; Wed, 17 Apr 2013 18:35:57 +0000 Received: by mail-gh0-f173.google.com with SMTP id g16so212795ghb.32 for ; Wed, 17 Apr 2013 11:35:53 -0700 (PDT) From: Fabio Estevam Date: Wed, 17 Apr 2013 15:35:43 -0300 Message-Id: <1366223743-29178-1-git-send-email-festevam@gmail.com> 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] mx6-sabrelite: Setup CCM_CCOSR register To: s.hauer@pengutronix.de Cc: Fabio Estevam , barebox@lists.infradead.org From: Fabio Estevam Setup CCM_CCOSR register to provide a CKO1 clock frequency of 16.5 MHz. CKO1 drives sgtl5000 codec clock on mx6qsabrelite and doing this setup in the bootloader will allow us to remove a lot of code in arch/arm/mach-imx/mach-imx6q.c from the mainline kernel. Signed-off-by: Fabio Estevam --- .../boards/freescale-mx6-sabrelite/flash_header.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boards/freescale-mx6-sabrelite/flash_header.c b/arch/arm/boards/freescale-mx6-sabrelite/flash_header.c index 61d482b..49326e0 100644 --- a/arch/arm/boards/freescale-mx6-sabrelite/flash_header.c +++ b/arch/arm/boards/freescale-mx6-sabrelite/flash_header.c @@ -152,6 +152,17 @@ struct imx_dcd_v2_entry __dcd_entry_section dcd_entry[] = { /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */ DCD(MX6_IOMUXC_BASE_ADDR + 0x018, 0x007f007f), DCD(MX6_IOMUXC_BASE_ADDR + 0x01c, 0x007f007f), + + /* + * Setup CCM_CCOSR register as follows: + * + * cko1_en = 1 --> CKO1 enabled + * cko1_div = 111 --> divide by 8 + * cko1_sel = 1011 --> ahb_clk_root + * + * This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz + */ + DCD(MX6_CCM_BASE_ADDR + 0x060, 0x000000fb), }; #define APP_DEST CONFIG_TEXT_BASE -- 1.7.9.5 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox