[U-Boot] [PATCH 6/7 v2] OMAP3: Add OMAP3 core changes for MUSB

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Sun Feb 22 16:59:40 CET 2009


On 19:55 Thu 12 Feb     , Dirk Behme wrote:
> OMAP3 core changes necessary for MUSB
> 
> Signed-off-by: Dirk Behme <dirk.behme at googlemail.com>
> 
> ---
> Note: OMAP3 USB code will be sent later to USB maintainer, so
>       CONFIG_MUSB isn't used anywhere yet. This will avoid
>       USB maintainer to change OMAP3 core files.
> 
>  cpu/arm_cortexa8/omap3/clock.c     |    5 +++++
>  include/asm-arm/arch-omap3/cpu.h   |    2 ++
>  include/asm-arm/arch-omap3/omap3.h |   11 +++++++++++
>  3 files changed, 18 insertions(+)
> 
> Index: u-boot-main/cpu/arm_cortexa8/omap3/clock.c
> ===================================================================
> --- u-boot-main.orig/cpu/arm_cortexa8/omap3/clock.c
> +++ u-boot-main/cpu/arm_cortexa8/omap3/clock.c
> @@ -377,5 +377,10 @@ void per_clocks_enable(void)
>  	sr32(&prcm_base->fclken_per, 0, 32, FCK_PER_ON);
>  	sr32(&prcm_base->iclken_per, 0, 32, ICK_PER_ON);
>  
> +#ifdef CONFIG_MUSB
> +	/* Enable the MUSB interface clock */
> +	sr32(&prcm_base->iclken1_core, 4, 1, 0x1);
> +#endif
the design of u-boot is to enagle the IP only when he use it
so please do not enable the clock every time just when you want to use
(in the USB driver init)

Best Regards,
J.


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