Hi all

I'm working on and mx51evk babbage board.

I have a lvds display connected ti disp1 pads.

I need to define DI1_DISP_CLK for pad J18 of the BGA (the chip is 19x19mm)


I know the pad definition is made by 5+1 values

<mux_reg conf_reg input_reg mux_mode input_val    CONFIG>


I don't find MX51_PAD_DI1_DISP_CLK__DI1_DISP_CLK or similar in imx51-pinfunc.h

I find MX51_PAD_DI2_DISP_CLK__DI2_DISP_CLK defined with this values.


#define MX51_PAD_DI2_DISP_CLK__DI2_DISP_CLK     0x34c 0x754 0x000 0x0 0x0


But I don't know how to use the 5 values.


Where I can find some example o detailed info about?


MZ

Hi Mauro,

you can refer to our IMX6 definitive GPIO guide related to iMX6 in our wiki
and adapt it to the required settings that you can see in the kernel documentation for imx53-pinctrl.txt

Ciao
--
Marco Cavallini | KOAN sas
Bergamo - Italia
embedded software engineering
https://KoanSoftware.com

Thank you.

Hi Mauro,

you can refer to our IMX6 definitive GPIO guide related to iMX6 in our wiki
and adapt it to the required settings that you can see in the kernel documentation for imx53-pinctrl.txt

Ciao
--
Marco Cavallini | KOAN sas
Bergamo - Italia
embedded software engineering
https://KoanSoftware.com

Hi Mauro,

On Sun, Mar 12, 2023 at 3:50 PM Mauro Ziliani <mauro@...> wrote:

Hi all

I'm working on and mx51evk babbage board.

I have a lvds display connected ti disp1 pads.

I need to define DI1_DISP_CLK for pad J18 of the BGA (the chip is 19x19mm)

Why? There is no mux option for the DI1_DISP_CLK pin.

Hi Fabio.

In the schematic of the board, the pin J18 is connected to lvds transceiver as DI1_DISP_CLK.

I compared the size of the chip and I see there 2 versions: 13x13 mm where J18 is DI1_PIN2, while in the 19x19 J18 is DI1_DISP_CLK.

Hi Mauro,

On Sun, Mar 12, 2023 at 3:50 PM Mauro Ziliani <mauro@...> wrote:

Hi all

I'm working on and mx51evk babbage board.

I have a lvds display connected ti disp1 pads.

I need to define DI1_DISP_CLK for pad J18 of the BGA (the chip is 19x19mm)

Why? There is no mux option for the DI1_DISP_CLK pin.

Hi Mauro,

On Tue, Mar 28, 2023 at 6:51 AM Mauro Ziliani <mauro@...> wrote:

Hi Fabio.

In the schematic of the board, the pin J18 is connected to lvds transceiver as DI1_DISP_CLK.

DI1_DISP_CLK is also used on the imx51-evk.

I don't understand why you want to include DI1_DISP_CLK into imx51-pinfunc.h.

The i.MX51 Reference Manual states that the DI1_DISP_CLK has no mux
option. It can only work as DI1_DISP_CLK functionality, so you don't
need to include it in imx51-pinfunc.h.