[U-Boot] [PATCH 5/5] bcm2835 video: Map fb as cached

["Andreas Färber" <afaerber@suse.de>]

Am 15.03.2016 um 18:21 schrieb Alexander Graf:
> The bcm2835 frame buffer is in RAM, so we can easily map it as cached and gain
> all the glorious performance boost that brings with it.
> 
> Signed-off-by: Alexander Graf <agraf@suse.de>
> ---
>  drivers/video/bcm2835.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/video/bcm2835.c b/drivers/video/bcm2835.c
> index bff1fcb..fe49f2e 100644
> --- a/drivers/video/bcm2835.c
> +++ b/drivers/video/bcm2835.c
> @@ -106,6 +106,12 @@ void lcd_ctrl_init(void *lcdbase)
>  
>  	gd->fb_base = bus_to_phys(
>  		msg_setup->allocate_buffer.body.resp.fb_address);
> +
> +	/* Enable dcache for the frame buffer */
> +        mmu_set_region_dcache_behaviour(gd->fb_base,

Spaces vs. tab.

Andreas

> +		ALIGN(PAGE_SIZE, msg_setup->allocate_buffer.body.resp.fb_size),
> +		DCACHE_WRITEBACK);
> +	lcd_set_flush_dcache(1);
>  }
>  
>  void lcd_enable(void)
> 


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