dtb seems correct but device driver not functioning
THANKS IN ADVANCE.
I've been working with Altera Cyclone V Dev Kit GSRD 14.1. I added a custom IP" UART_FIFO_AV_0" (that we've used before) that utilizes HSMC HSM_D0 and HSM_D1. "I believe" I have generated a good .dtb file. When I # ] insmod myDriver.ko The probe function uses: of_match_device platform_get_resource (should I be using of_address_to_resource ? that fails) request_mem_region of_iomap AND THEN I can see that in: /proc/device-tree/sopc@0 directory I have my entry. BUT when I try and write out to the HPS pins I see no activity. I've been going around in circles - I must be missing something fundamental. I'm attaching my *.dts file that I use to create my .dtb ANY IDEAS WILL BE APPRECIATED - I"VE BEEN AT THIS FOR DAYS AND I FEEL LIKE I'M GOING NOWHERE.