allow_functions_use_mulitple_groups.patch
Uartf will be on /dev/ttyS1 and Uartlite will be on /dev/ttyS0 as normal. If you hook a USB TTL adapter to GPIO 8&10 and open a terminal session you should be able to see whatever you send to /dev/ttyS1.
Here are the relevant parts of the kernel log:
- Code: Select all
root@OpenWrt:/# dmesg|grep uart
[ 0.120000] rt2880-pinmux pinctrl: found group selector 4 for uartf_high
[ 0.470000] rt2880-pinmux pinctrl: found group selector 5 for uartlite
[ 0.470000] rt2880-pinmux pinctrl: request pin 15 (io15) for 10000c00.uartlite
[ 0.470000] rt2880-pinmux pinctrl: request pin 16 (io16) for 10000c00.uartlite
[ 0.470000] 10000c00.uartlite: ttyS0 at MMIO 0x10000c00 (irq = 20, base_baud = 2500000) is a 16550A
[ 0.520000] rt2880-pinmux pinctrl: found group selector 3 for uartf_low
[ 0.520000] rt2880-pinmux pinctrl: request pin 7 (io7) for 10000500.uart
[ 0.520000] rt2880-pinmux pinctrl: request pin 8 (io8) for 10000500.uart
[ 0.520000] rt2880-pinmux pinctrl: request pin 9 (io9) for 10000500.uart
[ 0.520000] rt2880-pinmux pinctrl: request pin 10 (io10) for 10000500.uart
[ 0.520000] 10000500.uart: ttyS1 at MMIO 0x10000500 (irq = 13, base_baud = 2500000) is a 16550A
root@OpenWrt:/# dmesg|grep pio
[ 0.160000] rt2880_gpio 10000600.gpio: registering 22 gpios
[ 0.170000] rt2880_gpio 10000600.gpio: registering 22 irq handlers
[ 0.180000] rt2880_gpio 10000660.gpio: registering 6 gpios
[ 0.190000] rt2880_gpio 10000660.gpio: registering 6 irq handlers
[ 0.440000] rt2880-pinmux pinctrl: request pin 0 (io0) for pio:0
[ 0.440000] rt2880-pinmux pinctrl: request pin 11 (io11) for pio:11
[ 0.440000] rt2880-pinmux pinctrl: request pin 12 (io12) for pio:12
[ 0.440000] rt2880-pinmux pinctrl: request pin 13 (io13) for pio:13
[ 0.440000] rt2880-pinmux pinctrl: request pin 14 (io14) for pio:14
[ 0.440000] rt2880-pinmux pinctrl: request pin 17 (io17) for pio:17
[ 0.440000] rt2880-pinmux pinctrl: request pin 18 (io18) for pio:18
[ 0.440000] rt2880-pinmux pinctrl: request pin 19 (io19) for pio:19
[ 0.440000] rt2880-pinmux pinctrl: request pin 20 (io20) for pio:20
[ 0.440000] rt2880-pinmux pinctrl: request pin 21 (io21) for pio:21
[ 0.440000] rt2880-pinmux pinctrl: request pin 22 (io22) for pio:22
[ 0.440000] rt2880-pinmux pinctrl: request pin 23 (io23) for pio:23
[ 0.440000] rt2880-pinmux pinctrl: request pin 24 (io24) for pio:24
[ 0.440000] rt2880-pinmux pinctrl: request pin 25 (io25) for pio:25
[ 0.440000] rt2880-pinmux pinctrl: request pin 26 (io26) for pio:26
[ 0.440000] gpio-export gpio-export: 15 gpio(s) exported
[ 7.490000] rt2880-pinmux pinctrl: request pin 10 (io10) for pio:10
[ 7.490000] rt2880-pinmux pinctrl: pin 10 is not set to gpio mux
[ 7.510000] rt2880-pinmux pinctrl: pin-10 (pio:10) status -22
Please let me know if it works for you.