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 4.76 #1 (Red Hat Linux)) id 1T8Qea-0003fs-SL for barebox@lists.infradead.org; Mon, 03 Sep 2012 07:01:01 +0000 Date: Mon, 3 Sep 2012 09:00:54 +0200 From: Steffen Trumtrar Message-ID: <20120903070054.GA30402@pengutronix.de> References: <1346421308-24669-1-git-send-email-s.trumtrar@pengutronix.de> <20120901085341.GI18708@game.jcrosoft.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20120901085341.GI18708@game.jcrosoft.org> 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-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH] ARM i.MX6: query silicon revision To: Jean-Christophe PLAGNIOL-VILLARD Cc: barebox@lists.infradead.org On Sat, Sep 01, 2012 at 10:53:41AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote: > On 15:55 Fri 31 Aug , Steffen Trumtrar wrote: > > Read silicon revision from ???-register. > > This is based on a7683867463481bfea84af4d60af832ddfb3da7f from u-boot. > > The address 0x020c8260 is used and decoded. I haven't found that in my > > datasheet, so I must trust the code to be correct. > > At least on a SabreLite v1.0 I get the correct version though. > > > > Signed-off-by: Steffen Trumtrar > > --- > > arch/arm/mach-imx/imx6.c | 36 +++++++++++++++++++++++++++++++++++- > > 1 file changed, 35 insertions(+), 1 deletion(-) > > > > diff --git a/arch/arm/mach-imx/imx6.c b/arch/arm/mach-imx/imx6.c > > index b6067d7..9c90444 100644 > > --- a/arch/arm/mach-imx/imx6.c > > +++ b/arch/arm/mach-imx/imx6.c > > @@ -19,7 +19,7 @@ > > #include > > #include > > #include > > -#include > > +#include > > > > #include "gpio.h" > > > > @@ -35,6 +35,40 @@ void *imx_gpio_base[] = { > > > > int imx_gpio_count = ARRAY_SIZE(imx_gpio_base) * 32; > > > > +static u32 mx6_silicon_revision; > > +static char *mx6_rev_string = "unknown"; > > + > > +int imx_silicon_revision(void) > > +{ > > + return mx6_silicon_revision; > > +} > > + > > +static int query_silicon_revision(void) > > +{ > > + void __iomem *anatop = (void *) MX6_ANATOP_BASE_ADDR; > > + u32 rev, reg; > > + > > + reg = readl(anatop + 0x260); > > + /* read mx6 variant: quad, dual, solo */ > > + //rev = (reg >> 4) & 0xff000; > ?? Tnx. I will fix that. Regards, Steffen -- 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