[U-Boot] [PATCH V4 4/6] imx: mx6qp Enable PRG clock for IPU

[Stefano Babic <sbabic@denx.de>]

On 30/06/2015 04:36, Peng Fan wrote:
> The i.MX6DQP has a PRG module, need to enable its clock for using IPU.
> 
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Signed-off-by: Brown Oliver <B37094@freescale.com>
> Signed-off-by: Ye.Li <B37916@freescale.com>
> Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
> 
>  Changes v4:
>  Take Fabio's suggestion, use setbits_le32. Add Fabio's Reviewed-by
>  Changes v3:
>   Remove ipu qos settings
> 
>  Changes v2:
>   1. runtime check
>   2. introduce ipu qos settings for better performance
> 
>  arch/arm/cpu/armv7/mx6/clock.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
> index 446fe84..b7e714c 100644
> --- a/arch/arm/cpu/armv7/mx6/clock.c
> +++ b/arch/arm/cpu/armv7/mx6/clock.c
> @@ -866,6 +866,11 @@ void enable_ipu_clock(void)
>  	reg = readl(&mxc_ccm->CCGR3);
>  	reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK;
>  	writel(reg, &mxc_ccm->CCGR3);
> +
> +	if (is_mx6dqp()) {
> +		setbits_le32(&mxc_ccm->CCGR6, MXC_CCM_CCGR6_PRG_CLK0_MASK);
> +		setbits_le32(&mxc_ccm->CCGR3, MXC_CCM_CCGR3_IPU2_IPU_MASK);
> +	}
>  }
>  #endif
>  /***************************************************/
> 

Acked-by: Stefano Babic <sbabic@denx.de>

Best regards,
Stefano Babic

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