On Sun, 29 Mar 2020 17:53:51 -0700 (PDT), in
gmane.comp.hardware.beagleboard.user Mala Dies
<[email protected]> wrote:
>Hello,
>
>Here is my issue:
>
>P9_30 pinmux file not found!
>Cannot read pinmux file: /sys/devices/platform/ocp/ocp*P9_30_pinmux/state
>
Please include the command which produced these error messages...
>It seems I cannot mux my pins.
>
An up-to-date* IoT image with no capes shows:
debian@beaglebone:~$ ls /sys/devices/platform/ocp/
40300000.ocmcram 481d0000.can ocp:P8_15_pinmux
ocp:P9_14_pinmux
44e07000.gpio 481d8000.mmc ocp:P8_16_pinmux
ocp:P9_15_pinmux
44e09000.serial 48300000.epwmss ocp:P8_17_pinmux
ocp:P9_16_pinmux
44e0b000.i2c 48302000.epwmss ocp:P8_18_pinmux
ocp:P9_17_pinmux
44e0d000.tscadc 48304000.epwmss ocp:P8_19_pinmux
ocp:P9_18_pinmux
44e35000.wdt 48310000.rng ocp:P8_26_pinmux
ocp:P9_19_pinmux
44e3e000.rtc 49000000.edma ocp:P8_27_pinmux
ocp:P9_20_pinmux
47400000.usb 49800000.tptc ocp:P8_28_pinmux
ocp:P9_21_pinmux
48022000.serial 49900000.tptc ocp:P8_29_pinmux
ocp:P9_22_pinmux
48024000.serial 49a00000.tptc ocp:P8_30_pinmux
ocp:P9_23_pinmux
4802a000.i2c 4a100000.ethernet ocp:P8_31_pinmux
ocp:P9_24_pinmux
48030000.spi 4a326004.pruss-soc-bus ocp:P8_32_pinmux
ocp:P9_25_pinmux
48042000.timer 4c000000.emif ocp:P8_33_pinmux
ocp:P9_26_pinmux
48044000.timer 53100000.sham ocp:P8_34_pinmux
ocp:P9_27_pinmux
48046000.timer 53500000.aes ocp:P8_35_pinmux
ocp:P9_28_pinmux
48048000.timer 56000000.sgx ocp:P8_36_pinmux
ocp:P9_29_pinmux
4804a000.timer driver_override ocp:P8_37_pinmux
ocp:P9_30_pinmux
4804c000.gpio modalias ocp:P8_38_pinmux
ocp:P9_31_pinmux
48060000.mmc ocp:A15_pinmux ocp:P8_39_pinmux
ocp:P9_41_pinmux
480c8000.mailbox ocp:cape-universal ocp:P8_40_pinmux
ocp:P9_42_pinmux
480ca000.spinlock ocp:l4_wkup@44c00000 ocp:P8_41_pinmux
ocp:P9_91_pinmux
4819c000.i2c ocp:P8_07_pinmux ocp:P8_42_pinmux
ocp:P9_92_pinmux
481a0000.spi ocp:P8_08_pinmux ocp:P8_43_pinmux of_node
481a6000.serial ocp:P8_09_pinmux ocp:P8_44_pinmux power
481a8000.serial ocp:P8_10_pinmux ocp:P8_45_pinmux subsystem
481aa000.serial ocp:P8_11_pinmux ocp:P8_46_pinmux uevent
481ac000.gpio ocp:P8_12_pinmux ocp:P9_11_pinmux
481ae000.gpio ocp:P8_13_pinmux ocp:P9_12_pinmux
481cc000.can ocp:P8_14_pinmux ocp:P9_13_pinmux
debian@beaglebone:~$
debian@beaglebone:~$ config-pin -i P9_30
Pin name: P9_30
Function if no cape loaded: gpio
Function if cape loaded: default gpio gpio_pu gpio_pd gpio_input spi pwm
pruout pruin
Function information: gpio3_16 default gpio3_16 gpio3_16 gpio3_16 gpio3_16
spi1_d1 ehrpwm0_tripzone_input pru0_out2 pru0_in2
Kernel GPIO id: 112
PRU GPIO id: 144
debian@beaglebone:~$
debian@beaglebone:~$ config-pin -q P9_30
P9_30 Mode: default Direction: in Value: 0
debian@beaglebone:~$
debian@beaglebone:~$ config-pin P9_30 out
debian@beaglebone:~$ config-pin -q P9_30
P9_30 Mode: gpio Direction: out Value: 0
debian@beaglebone:~$
debian@beaglebone:~$ sudo /opt/scripts/device/bone/show-pins.pl
[sudo] password for debian:
P8.25 / eMMC d0 0 U7 fast rx up 1 mmc 1 d0
mmc@481d8000 (pinmux_emmc_pins)
P8.24 / eMMC d1 1 V7 fast rx up 1 mmc 1 d1
mmc@481d8000 (pinmux_emmc_pins)
P8.05 / eMMC d2 2 R8 fast rx up 1 mmc 1 d2
mmc@481d8000 (pinmux_emmc_pins)
P8.06 / eMMC d3 3 T8 fast rx up 1 mmc 1 d3
mmc@481d8000 (pinmux_emmc_pins)
P8.23 / eMMC d4 4 U8 fast rx up 1 mmc 1 d4
mmc@481d8000 (pinmux_emmc_pins)
P8.22 / eMMC d5 5 V8 fast rx up 1 mmc 1 d5
mmc@481d8000 (pinmux_emmc_pins)
P8.03 / eMMC d6 6 R9 fast rx up 1 mmc 1 d6
mmc@481d8000 (pinmux_emmc_pins)
P8.04 / eMMC d7 7 T9 fast rx up 1 mmc 1 d7
mmc@481d8000 (pinmux_emmc_pins)
P8.19 8 U10 fast rx down 7 gpio 0.22
ocp/P8_19_pinmux (pinmux_P8_19_default_pin)
P8.13 9 T10 fast rx down 7 gpio 0.23
ocp/P8_13_pinmux (pinmux_P8_13_default_pin)
P8.14 10 T11 fast rx down 7 gpio 0.26
ocp/P8_14_pinmux (pinmux_P8_14_default_pin)
P8.17 11 U12 fast rx down 7 gpio 0.27
ocp/P8_17_pinmux (pinmux_P8_17_default_pin)
P8.12 12 T12 fast rx down 7 gpio 1.12
ocp/P8_12_pinmux (pinmux_P8_12_default_pin)
P8.11 13 R12 fast rx down 7 gpio 1.13
ocp/P8_11_pinmux (pinmux_P8_11_default_pin)
P8.16 14 V13 fast rx down 7 gpio 1.14
ocp/P8_16_pinmux (pinmux_P8_16_default_pin)
P8.15 15 U13 fast rx down 7 gpio 1.15
ocp/P8_15_pinmux (pinmux_P8_15_default_pin)
P9.15 16 R13 fast rx down 7 gpio 1.16
ocp/P9_15_pinmux (pinmux_P9_15_default_pin)
P9.23 17 V14 fast rx down 7 gpio 1.17
ocp/P9_23_pinmux (pinmux_P9_23_default_pin)
P9.14 18 U14 fast rx down 7 gpio 1.18
ocp/P9_14_pinmux (pinmux_P9_14_default_pin)
P9.16 19 T14 fast rx down 7 gpio 1.19
ocp/P9_16_pinmux (pinmux_P9_16_default_pin)
P9.11 28 T17 fast rx up 7 gpio 0.30
ocp/P9_11_pinmux (pinmux_P9_11_default_pin)
P9.13 29 U17 fast rx up 7 gpio 0.31
ocp/P9_13_pinmux (pinmux_P9_13_default_pin)
P9.12 30 U18 fast rx up 7 gpio 1.28
ocp/P9_12_pinmux (pinmux_P9_12_default_pin)
P8.26 31 V6 fast rx up 7 gpio 1.29
ocp/P8_26_pinmux (pinmux_P8_26_default_pin)
P8.21 / eMMC clk 32 U9 fast rx up 2 mmc 1 clk
mmc@481d8000 (pinmux_emmc_pins)
P8.20 / eMMC cmd 33 V9 fast rx up 2 mmc 1 cmd
mmc@481d8000 (pinmux_emmc_pins)
P9.15 34 T13 fast rx up 7 gpio 2.00
P8.18 35 V12 fast rx down 7 gpio 2.01
ocp/P8_18_pinmux (pinmux_P8_18_default_pin)
P8.07 36 R7 fast rx up 7 gpio 2.02
ocp/P8_07_pinmux (pinmux_P8_07_default_pin)
P8.08 37 T7 fast rx up 7 gpio 2.03
ocp/P8_08_pinmux (pinmux_P8_08_default_pin)
P8.10 38 U6 fast rx up 7 gpio 2.04
ocp/P8_10_pinmux (pinmux_P8_10_default_pin)
P8.09 39 T6 fast rx up 7 gpio 2.05
ocp/P8_09_pinmux (pinmux_P8_09_default_pin)
P8.45 / hdmi / sysboot 0 40 R1 fast rx down 7 gpio 2.06
ocp/P8_45_pinmux (pinmux_P8_45_default_pin)
P8.46 / hdmi / sysboot 1 41 R2 fast rx down 7 gpio 2.07
ocp/P8_46_pinmux (pinmux_P8_46_default_pin)
P8.43 / hdmi / sysboot 2 42 R3 fast rx down 7 gpio 2.08
ocp/P8_43_pinmux (pinmux_P8_43_default_pin)
P8.44 / hdmi / sysboot 3 43 R4 fast rx down 7 gpio 2.09
ocp/P8_44_pinmux (pinmux_P8_44_default_pin)
P8.41 / hdmi / sysboot 4 44 T1 fast rx down 7 gpio 2.10
ocp/P8_41_pinmux (pinmux_P8_41_default_pin)
P8.42 / hdmi / sysboot 5 45 T2 fast rx down 7 gpio 2.11
ocp/P8_42_pinmux (pinmux_P8_42_default_pin)
P8.39 / hdmi / sysboot 6 46 T3 fast rx down 7 gpio 2.12
ocp/P8_39_pinmux (pinmux_P8_39_default_pin)
P8.40 / hdmi / sysboot 7 47 T4 fast rx down 7 gpio 2.13
ocp/P8_40_pinmux (pinmux_P8_40_default_pin)
P8.37 / hdmi / sysboot 8 48 U1 fast rx down 7 gpio 2.14
ocp/P8_37_pinmux (pinmux_P8_37_default_pin)
P8.38 / hdmi / sysboot 9 49 U2 fast rx down 7 gpio 2.15
ocp/P8_38_pinmux (pinmux_P8_38_default_pin)
P8.36 / hdmi / sysboot 10 50 U3 fast rx down 7 gpio 2.16
ocp/P8_36_pinmux (pinmux_P8_36_default_pin)
P8.34 / hdmi / sysboot 11 51 U4 fast rx down 7 gpio 2.17
ocp/P8_34_pinmux (pinmux_P8_34_default_pin)
P8.35 / hdmi / sysboot 12 52 V2 fast rx down 7 gpio 0.08
ocp/P8_35_pinmux (pinmux_P8_35_default_pin)
P8.33 / hdmi / sysboot 13 53 V3 fast rx down 7 gpio 0.09
ocp/P8_33_pinmux (pinmux_P8_33_default_pin)
P8.31 / hdmi / sysboot 14 54 V4 fast rx down 7 gpio 0.10
ocp/P8_31_pinmux (pinmux_P8_31_default_pin)
P8.32 / hdmi / sysboot 15 55 T5 fast rx down 7 gpio 0.11
ocp/P8_32_pinmux (pinmux_P8_32_default_pin)
P8.27 / hdmi 56 U5 fast rx down 7 gpio 2.22
ocp/P8_27_pinmux (pinmux_P8_27_default_pin)
P8.29 / hdmi 57 R5 fast rx down 7 gpio 2.23
ocp/P8_29_pinmux (pinmux_P8_29_default_pin)
P8.28 / hdmi 58 V5 fast rx down 7 gpio 2.24
ocp/P8_28_pinmux (pinmux_P8_28_default_pin)
P8.30 / hdmi 59 R6 fast rx down 7 gpio 2.25
ocp/P8_30_pinmux (pinmux_P8_30_default_pin)
P9.22 / spi boot clk 84 A17 fast rx up 7 gpio 0.02
ocp/P9_22_pinmux (pinmux_P9_22_default_pin)
P9.21 / spi boot in 85 B17 fast rx up 7 gpio 0.03
ocp/P9_21_pinmux (pinmux_P9_21_default_pin)
P9.18 / spi boot out 86 B16 fast rx up 7 gpio 0.04
ocp/P9_18_pinmux (pinmux_P9_18_default_pin)
P9.17 / spi boot cs 87 A16 fast rx up 7 gpio 0.05
ocp/P9_17_pinmux (pinmux_P9_17_default_pin)
P9.42a 89 C18 fast rx down 7 gpio 0.07
ocp/P9_42_pinmux (pinmux_P9_42_default_pin)
P9.20 / cape i²c sda 94 D18 fast rx up 3 i²c 2 sda
ocp/P9_20_pinmux (pinmux_P9_20_default_pin)
P9.19 / cape i²c scl 95 D17 fast rx up 3 i²c 2 scl
ocp/P9_19_pinmux (pinmux_P9_19_default_pin)
P9.26 96 D16 fast rx up 7 gpio 0.14
ocp/P9_26_pinmux (pinmux_P9_26_default_pin)
P9.24 97 D15 fast rx up 7 gpio 0.15
ocp/P9_24_pinmux (pinmux_P9_24_default_pin)
P9.31 / hdmi audio clk 100 A13 fast rx down 7 gpio 3.14
ocp/P9_31_pinmux (pinmux_P9_31_default_pin)
P9.29 / hdmi audio fs 101 B13 fast rx down 7 gpio 3.15
ocp/P9_29_pinmux (pinmux_P9_29_default_pin)
P9.30 102 D12 fast rx 7 gpio 3.16
ocp/P9_30_pinmux (pinmux_P9_30_gpio_pin)
P9.28 / hdmi audio data 103 C12 fast rx down 7 gpio 3.17
ocp/P9_28_pinmux (pinmux_P9_28_default_pin)
P9.42b 104 B12 fast rx down 7 gpio 3.18
ocp/P9_92_pinmux (pinmux_P9_92_default_pin)
P9.27 105 C13 fast rx down 7 gpio 3.19
ocp/P9_27_pinmux (pinmux_P9_27_default_pin)
P9.41 106 D13 fast rx down 7 gpio 3.20
ocp/P9_91_pinmux (pinmux_P9_91_default_pin)
P9.25 / audio osc 107 A14 fast rx down 7 gpio 3.21
ocp/P9_25_pinmux (pinmux_P9_25_default_pin)
P9.41 / jtag emu3 109 D14 fast rx down 7 gpio 0.20
ocp/P9_41_pinmux (pinmux_P9_41_default_pin)
debian@beaglebone:~$
If these commands are producing errors for you, then /something/ has
changed your device tree configuration, disabling GPIOs.
* The images at http://beagleboard.org/latest-images are from August of
last year, if you haven't run
sudo apt update
sudo apt upgrade
then you have a very out-of-date image.
--
Dennis L Bieber
--
For more options, visit http://beagleboard.org/discuss
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