[U-Boot] [PATCH V2] Origen: Set FIMD as the default display path

[Tushar Behera]

On 19 August 2013 07:22, Donghwa Lee <dh09.lee at samsung.com> wrote:
> On Fri, Aug 16, 2013 at 16:31, Ajay kumar wrote:
>
> On Thu, Aug 15, 2013 at 6:53 PM, Tushar Behera <tushar.behera at linaro.org>
> wrote:
>>
>> On EXYNOS4210, there are three paths for display data to be processed,
>> namely MIE, MDNIE and FIMD. On Origen board, FIMD display controller
>> is used.
>>
>> Signed-off-by: Tushar Behera <tushar.behera at linaro.org>
>> ---
>> Changes for V2:
>> * Updated review comments from Ajay Kumar, reusing the code from
>> arch/arm/cpu/armv7/exynos/system.c.
>>
>>  board/samsung/origen/origen.c |    3 +++
>>  1 file changed, 3 insertions(+)
>>
>> diff --git a/board/samsung/origen/origen.c b/board/samsung/origen/origen.c
>> index 15f77ca..bb16699 100644
>> --- a/board/samsung/origen/origen.c
>> +++ b/board/samsung/origen/origen.c
>> @@ -22,6 +22,9 @@ int board_init(void)
>>         gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
>>
>>         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
>> +
>> +       set_system_display_ctrl();
>> +
>
> Ok. You are trying to get the display up in the kernel,
> without enabling the display in u-boot.
> And, thats why you are making an explicit call here?
>

Yes, as of now, I don't want LCD support in u-boot, but I want to just
enable the display path.

> Previously, Ajay kumar said set_system_display_ctrl() function is already
> called by
> lcd_ctrl_init() of exynos_fb.c.
> If you need to use FIMD path, you'd better use the existing one.

I tried enabling CONFIG_LCD and related config options so that
existing display path in u-boot is called. That somehow stalls the
u-boot and I didn't want to pursue that much as calling this function
fixes my issue.

>>
>>         return 0;
>>  }
>>
>> --
>> 1.7.9.5
>>
>
>



-- 
Tushar Behera