gpio driver porting from an r-pi3b
#5
gene83, if you're talking about porting hm2_rpspi.c to support the 7i90 you'll need to spend time with the technical reference manual, chapter 20, available here http://opensource.rock-chips.com/wiki_Main_Page - it's the RK3328 TRM link. The rpspi solution bitbangs the hardware directly and requires the standard "spidev" driver is unloaded.

The existing RPi3 hardware addresses and offsets will need to be updated to reflect the RK3328 layout.

Another option to consider is acquiring a 7i92 and connecting via wired ethernet, hm2_eth driver.

Is the 4.11.12-rt15 kernel build available?

All the best, Joe
  Reply


Messages In This Thread
gpio driver porting from an r-pi3b - by gene83 - 10-12-2017, 08:12 PM
RE: gpio driver porting from an r-pi3b - by joseph - 10-20-2017, 12:58 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
Brick Rock64 usb2.0 Power Control Floating GPIO Tutorial Files & Notes MarkHaysHarris777 6 14,512 01-15-2023, 10:36 AM
Last Post: ds00
  Configuring Python GPIO Pin Control Rock64 www139 3 8,365 06-22-2021, 06:57 AM
Last Post: Mrfixit2001
  Help connecting a dvb board in the right gpio pins cosmodeal 0 2,374 11-11-2020, 12:48 PM
Last Post: cosmodeal
Question UARTs from GPIO headers maks.dav 3 5,545 10-30-2020, 07:44 AM
Last Post: maks.dav
  RTL8812AU driver and connection issues pane 7 10,601 12-20-2018, 04:56 PM
Last Post: pane
  WIFI driver compilation wsk 1 3,147 11-01-2018, 12:21 AM
Last Post: wsk
  GPIO extension cable fault viguzzz 12 15,040 05-18-2018, 04:03 AM
Last Post: viguzzz
Question Rock64 GPIO Nak64Rbit 5 8,320 04-04-2018, 12:53 AM
Last Post: hryst

Forum Jump:


Users browsing this thread: 5 Guest(s)