[U-Boot] [PATCH] video: bcm2835: use bus_to_phys() on FB address

[Anatolij Gustschin]

Hi Stephen,

On Sat,  6 Feb 2016 10:42:43 -0700
Stephen Warren swarren at wwwdotorg.org wrote:

> The FB address is generated by the firmware running on the GPU/VideoCore
> and is a "bus" address. This address is the other side of an IOMMU from
> the ARM upon which U-Boot is running. Use bus_to_phys() to convert this
> to an ARM physical address. Without this, U-Boot seems to work just fine,
> but once the Linux kernel boots on an RPi2, accessing the FB memory often
> causes a hard system hang.
> 
> This is related to:
> 122426d46e31 ARM: bcm2835: use phys_to_bus() for mbox
> 5c0beb5c58c8 usb: dwc2: use phys_to_bus/bus_to_phys
> 79340db7f1f6 ARM: bcm2835: implement phys_to_bus/bus_to_phys
> 
> Signed-off-by: Stephen Warren <swarren at wwwdotorg.org>
> ---
>  drivers/video/bcm2835.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

applied to u-boot-video/master, thanks!

--
Anatolij