Hi,
We have a custom board using 66AK2H14 processor.
I am currently trying to boot our new custom board. The first step for this is to run U-boot.
To know that my U-boot is working on custom board, I want to make some leds working on it, allowing me to see that u-boot is living.
For this, I tried first to add the gpio led support in my EVM u-boot, before using it in my custom board U-boot.
However, until now, it is not working, I miss something.
For now,, I add the gpio support and the led support to my config using menuconfig (device drivers->led support). I also tried to add the command line interface for gpio ( command line interface -> Device access commands -> gpio).
I tried to use the gpio function in ddr3_k2hk.c file, during init. Howver, I can't see any results on my LED.
I tried the following functions :
status = gpio_request(12, "led1");
gpio_direction_output(12, 1);
mdelay(2000);
gpio_direction_output(12, 0);
mdelay(2000);
led1 is the name I defined in the device tree source. 12 is the number of the gpio, knowing that I tested it in a DSP application with emulator and it is perfectly working, as using gpio 13, 14 and 15 for the 3 other leds.
Do you see any mistake I do or anything I am missing?
Thank you for your help.
Best Regards.
K.Luong
