[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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