From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: Alexander Shiyan <shc_work@mail.ru>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 03/11] ARM: clps711x: Adds config option for CPU PLL multiplier
Date: Fri, 8 Feb 2013 12:11:26 +0100 [thread overview]
Message-ID: <20130208111126.GR19322@game.jcrosoft.org> (raw)
In-Reply-To: <1360317743-25975-3-git-send-email-shc_work@mail.ru>
On 14:02 Fri 08 Feb , Alexander Shiyan wrote:
>
> Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
> ---
> arch/arm/mach-clps711x/Kconfig | 13 +++++++++++++
> arch/arm/mach-clps711x/lowlevel.c | 4 ++--
> 2 files changed, 15 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
> index f0adeda..d2873b4 100644
> --- a/arch/arm/mach-clps711x/Kconfig
> +++ b/arch/arm/mach-clps711x/Kconfig
> @@ -10,6 +10,19 @@ config MACH_CLEP7212
>
> endchoice
>
> +menu "CLPS711X specific settings"
> +
> +config CLPS711X_CPU_PLL_MULT
> + int "CPU PLL multiplier (20-50)"
> + range 20 50
> + default "40"
> + help
> + Define CPU PLL multiplier. PLL is calculated by formula:
> + PLL Frequency = (PLL Multiplier / 2) * 3686400 Hz
> + Default value is 40, for achieve 73 MHz.
> +
this board specific put this in c code
kconfig is too easy to break
check how we do on at91
Best Regards,
J.
> +endmenu
> +
> config BOARDINFO
> default "Cirrus Logic CLEP7212" if MACH_CLEP7212
>
> diff --git a/arch/arm/mach-clps711x/lowlevel.c b/arch/arm/mach-clps711x/lowlevel.c
> index 0249c60..245ac93 100644
> --- a/arch/arm/mach-clps711x/lowlevel.c
> +++ b/arch/arm/mach-clps711x/lowlevel.c
> @@ -18,10 +18,10 @@
> #include <mach/clps711x.h>
>
> #define MAIN_CLOCK 3686400
> -#define CPU_SPEED 92160000
> +#define CPU_SPEED ((CONFIG_CLPS711X_CPU_PLL_MULT * MAIN_CLOCK) / 2)
> #define BUS_SPEED (CPU_SPEED / 2)
>
> -#define PLL_VALUE (((CPU_SPEED * 2) / MAIN_CLOCK) << 24)
> +#define PLL_VALUE (CONFIG_CLPS711X_CPU_PLL_MULT << 24)
> #define SDRAM_REFRESH_RATE (64 * (BUS_SPEED / (8192 * 1000)))
>
> void __naked __bare_init barebox_arm_reset_vector(void)
> --
> 1.7.3.4
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2013-02-08 11:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-08 10:02 [PATCH 01/11] ARM: clps711x: Move lowlevel initialization in common CLPS711X location Alexander Shiyan
2013-02-08 10:02 ` [PATCH 02/11] ARM: clps711x: Fix SDRAM setup comment Alexander Shiyan
2013-02-08 10:02 ` [PATCH 03/11] ARM: clps711x: Adds config option for CPU PLL multiplier Alexander Shiyan
2013-02-08 11:11 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2013-02-08 11:58 ` Re[2]: " Alexander Shiyan
2013-02-08 13:37 ` [SPAM] " Jean-Christophe PLAGNIOL-VILLARD
2013-02-08 10:02 ` [PATCH 04/11] ARM: clps711x: Decrease initial memory size to 8MB Alexander Shiyan
2013-02-08 10:02 ` [PATCH 05/11] ARM: clps711x: Remove unused "start" declaration from reset.c Alexander Shiyan
2013-02-08 10:02 ` [PATCH 06/11] ARM: clps711x: Mark private functions that not will be used outside as static Alexander Shiyan
2013-02-08 10:02 ` [PATCH 07/11] ARM: clep7212: Fix NULL pointer exception if MMU is enabled Alexander Shiyan
2013-02-08 10:02 ` [PATCH 08/11] ARM: mmu: Clear unpredictable bits for translation table Alexander Shiyan
2013-02-11 8:26 ` Sascha Hauer
2013-02-08 10:02 ` [PATCH 09/11] ARM: clps711x: Move memory initialization in common CLPS711X location Alexander Shiyan
2013-02-08 10:02 ` [PATCH 10/11] ARM: clps711x: Turn off all peripherals on startup Alexander Shiyan
2013-02-08 10:02 ` [PATCH 11/11] ARM: clps711x: Update defconfig Alexander Shiyan
2013-02-11 8:48 ` [PATCH 01/11] ARM: clps711x: Move lowlevel initialization in common CLPS711X location Sascha Hauer
2013-02-11 9:30 ` Re[2]: " Alexander Shiyan
2013-02-11 9:41 ` Sascha Hauer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130208111126.GR19322@game.jcrosoft.org \
--to=plagnioj@jcrosoft.com \
--cc=barebox@lists.infradead.org \
--cc=shc_work@mail.ru \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox