Hi
On Mon, Mar 25, 2019 at 11:12 PM Fabio Estevam festevam@gmail.com wrote:
Hi Michael,
On Mon, Mar 25, 2019 at 1:56 PM Fabio Estevam festevam@gmail.com wrote:
U-Boot 2019.04-rc4-00047-gcfb3e102c4 (Mar 23 2019 - 10:45:10 -0300)
CPU: Freescale i.MX7D rev1.2 1000 MHz (running at 792 MHz) CPU: Commercial temperature grade (0C to 95C) at 40C Reset cause: POR Board: i.MX7D PICOSOM I2C: ready DRAM: 512 MiB
(Hangs here)
It seems this hangs is related to the GPIO that enables the LCD.
If I change the code like this:
diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c index 767d13dfe5..ba1c6f9740 100644 --- a/board/technexion/pico-imx7d/pico-imx7d.c +++ b/board/technexion/pico-imx7d/pico-imx7d.c @@ -294,7 +294,7 @@ void setup_lcd(void) /* Set Brightness to high */ gpio_direction_output(IMX_GPIO_NR(1, 11) , 1); /* Set LCD enable to high */
gpio_direction_output(IMX_GPIO_NR(1, 6) , 1);
gpio_direction_output(IMX_GPIO_NR(1, 6) , 0);} #endif
Then I can load U-Boot via USB without problem.
However, in order to turn on the LCD we need to turn on GPIO1_6.
If I do this from the U-Boot prompt:
=> gpio set 6
Then the board hangs.
Not sure why setting GPIO1_6 is causing the board to hang.
Maybe you drain to much power ;)
Michael