[U-Boot] [PATCH 1/2] OMAP4: clocks-common: prevent USB DPLL from being stuck in running state

Tero Kristo t-kristo at ti.com
Thu Jun 21 12:27:52 CEST 2012


On Thu, 2012-06-21 at 12:39 +0300, Roger Quadros wrote:
> If board config does not select CONFIG_USB_EHCI_OMAP (e.g. omap4_sdp4430_config)
> then the USB DPLL is stuck in running state and it prevents the system from
> entering OFF mode (i.e. l3init domain is kept ON).
> 
> With this patch we unconditionally configure the USB DPLL so it functions
> properly even on boards not using CONFIG_USB_EHCI_OMAP
> 
> Signed-off-by: Roger Quadros <rogerq at ti.com>

I actually did exactly the same changes to my u-boot tree for the same
reason. I don't have your neat changelog though. So, you can consider
this as:

Acked-by: Tero Kristo <t-kristo at ti.com>

> ---
>  arch/arm/cpu/armv7/omap-common/clocks-common.c |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
> index 10d286a..206f0ab 100644
> --- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
> +++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
> @@ -256,7 +256,6 @@ void configure_mpu_dpll(void)
>  	debug("MPU DPLL locked\n");
>  }
>  
> -#ifdef CONFIG_USB_EHCI_OMAP
>  static void setup_usb_dpll(void)
>  {
>  	const struct dpll_params *params;
> @@ -283,7 +282,6 @@ static void setup_usb_dpll(void)
>  	/* Now setup the dpll with the regular function */
>  	do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK, "usb");
>  }
> -#endif
>  
>  static void setup_dplls(void)
>  {
> @@ -317,9 +315,7 @@ static void setup_dplls(void)
>  	/* MPU dpll */
>  	configure_mpu_dpll();
>  
> -#ifdef CONFIG_USB_EHCI_OMAP
>  	setup_usb_dpll();
> -#endif
>  }
>  
>  #ifdef CONFIG_SYS_CLOCKS_ENABLE_ALL




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