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Date: Fri, 12 Oct 2012 11:26:53 +0200
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Message-ID: <20121012092653.GG13639@game.jcrosoft.org>
References: <1349992331-22987-1-git-send-email-carlo.caione@gmail.com>
 <1349992331-22987-2-git-send-email-carlo.caione@gmail.com>
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Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org
Subject: Re: [PATCH 1/5] BCM2835: clocksource driver
To: Carlo Caione <carlo.caione@gmail.com>
Cc: barebox@lists.infradead.org

On 23:52 Thu 11 Oct     , Carlo Caione wrote:
> Signed-off-by: Carlo Caione <carlo.caione@gmail.com>
> ---
>  drivers/clocksource/Kconfig   |  4 ++
>  drivers/clocksource/Makefile  |  1 +
>  drivers/clocksource/bcm2835.c | 92 +++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 97 insertions(+)
>  create mode 100644 drivers/clocksource/bcm2835.c
> 
> diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
> index 9d6d293..09acdd7 100644
> --- a/drivers/clocksource/Kconfig
> +++ b/drivers/clocksource/Kconfig
> @@ -2,6 +2,10 @@ config ARM_SMP_TWD
>  	bool
>  	depends on ARM && CPU_V7
>  
> +config CLOCKSOURCE_BCM2835
> +	bool
> +	depends on ARCH_BCM2835
> +
>  config CLOCKSOURCE_NOMADIK
>  	bool
>  	depends on ARM
> diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
> index bef465c..92d7c13 100644
> --- a/drivers/clocksource/Makefile
> +++ b/drivers/clocksource/Makefile
> @@ -1,2 +1,3 @@
>  obj-$(CONFIG_ARM_SMP_TWD) += arm_smp_twd.o
> +obj-$(CONFIG_CLOCKSOURCE_BCM2835) += bcm2835.o
>  obj-$(CONFIG_CLOCKSOURCE_NOMADIK) += nomadik.o
> diff --git a/drivers/clocksource/bcm2835.c b/drivers/clocksource/bcm2835.c
> new file mode 100644
> index 0000000..60085a9
> --- /dev/null
> +++ b/drivers/clocksource/bcm2835.c
> @@ -0,0 +1,92 @@
> +/*
> + * Author: Carlo Caione <carlo@carlocaione.org>
> + *
> + * Based on clocksource for nomadik
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + *
> + */
> +
> +
> +#include <common.h>
> +#include <clock.h>
> +#include <io.h>
> +#include <init.h>
> +#include <driver.h>
> +#include <errno.h>
> +#include <linux/clk.h>
> +#include <linux/err.h>
> +
> +static __iomem void *stc_base;
> +
> +static uint64_t stc_read_cycles(void)
> +{
> +	return readl(stc_base + 0x04);
will prefer a macor for the 0x04 with the reg name
but ok

Best Regards,
J.

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