d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Start enabling the available GPIO pins on the Carambola 2.

Browse Source 
The carambola2 exposes all the gpio pins, but some are reserved for
core functions (eg usb, ethernet, etc.) Others are configured by default
to be available as normal GPIO pins to do interesting things with.

GPIO 18->23 is the I2S, SLIC and SPDIF device pins, but none of those
are currently used.  So, just allow those to show up.

Tested:

* AR9344, Carambola 2
* (.. bitbang SPI to an Adafruit LCD via libgpio, because FreeBSD could
  do with more shiny output devices that aren't network interfaces.)

TODO:

There are some other pins aren't currently included here, but should be.
The LED pins are for the internal switch inside the AR9344.

* GPIO 0+1 are "LED0 + LED1", but they're tied to high for bootstrapping.
* GPIO 13-17 are "LED2..7", but they're tied (H, L, L, L, H) for bootstrapping.
* GPIO 11 and 12 are UART RTS/CTS or I2S; but GPIO 12 is tied L for bootstrap.
This commit is contained in:
adrian 2015-04-12 00:02:32 +00:00
parent f116ec9943
commit 9f1456194d
1 changed files with 1 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sys/mips/conf/CARAMBOLA2.hints
View File

@ -98,19 +98,4 @@ hint.gpio.0.function_set=0x00000000
hint.gpio.0.function_clear=0x00000000
# These are the GPIO LEDs and buttons which can be software controlled.
#hint.gpio.0.pinmask=0x001c02ae
hint.gpio.0.pinmask=0x00001803
# gpio0 - WLAN LED
# gpio1 - USB LED
# gpio11 - Jumpstart button
# gpio12 - Reset button
# LEDs are configured separately and driven by the LED device
hint.gpioled.0.at="gpiobus0"
hint.gpioled.0.name="wlan"
hint.gpioled.0.pins=0x0001
hint.gpioled.1.at="gpiobus0"
hint.gpioled.1.name="usb"
hint.gpioled.1.pins=0x0002
hint.gpio.0.pinmask=0x00fc1803