I think I see the problem, but don't know how to fix it. when looking at dmesg or running the version script I see
[ 0.938342] pinctrl-single 44e10800.pinmux: 142 pins, size 568 [ 1.262375] pinctrl-single 44e10800.pinmux: pin PIN100 already requested by ocp:P9_31_pinmux; cannot claim for 481a0000.spi [ 1.273762] pinctrl-single 44e10800.pinmux: pin-100 (481a0000.spi) status -22 [ 1.280975] pinctrl-single 44e10800.pinmux: could not request pin 100 (PIN100) from group spi1_pins_s0 on device pinctrl-single so the pin can't be reassigned for use as spi1. Currently trying to figure out what is assigning PIN100 (P9_31_pinmux) and seeing what can be done. I thought that the new or call dt file would over right any previous settings, but It does look like it. Regards, On Thursday, January 28, 2021 at 10:04:33 AM UTC+10 Yendor wrote: > Copying from https://elinux.org/BeagleBone_Black_Enable_SPIDEV I came up > with > > ------------------------------ > /dts-v1/; > /plugin/; > > /* SPI1 */ > /* D1 Output and D0 Input */ > > / { > > compatible = "ti,beaglebone", "ti,beaglebone-black", "beaglebone-green"; > > /* identification */ > part-number = "spi1mux"; > > fragment@0 { > target = <&am33xx_pinmux>; > __overlay__ { > spi1_pins_s0: spi1_pins_s0 { > pinctrl-single,pins = < > > 0x190 0x33 /* mcasp0_aclkx.spi1_sclk, > INPUT_PULLUP | MODE3 */ > > 0x194 0x33 /* mcasp0_fsx.spi1_d0, > INPUT_PULLUP | MODE3 */ > > 0x198 0x13 /* mcasp0_axr0.spi1_d1, > OUTPUT_PULLUP | MODE3 */ > > 0x6c 0x17 /* gpmc_a11.gpio1_27, > OUTPUT_PULLUP | MODE7 */ > >; > }; > }; > }; > > fragment@1 { > target = <&spi1>; > __overlay__ { > > #address-cells = < 0x01 >; > #size-cells = < 0x00 >; > status = "okay"; > pinctrl-names = "default"; > pinctrl-0 = <&spi1_pins_s0>; > > spidev@1 { > spi-max-frequency = < 0xf42400 >; > reg = < 0x00 >; > compatible = "linux,spidev"; > }; > }; > }; > }; > ------------------------------ > and compiled to dtbo, add to uEnv.txt rebooted but still no reflection > when test the SPI, hmmm? don't know if this is been overwritten or just not > working? > > what the best way to track down what pin are been connected to the SPI > bus, I'm thinking I should be able to find what pin are controlling the > SCLK, MOSI and MISO. > > Regards, > On Thursday, January 28, 2021 at 6:44:35 AM UTC+10 Yendor wrote: > >> How to setup pins as SPI? >> >> Support has let me know what pins are controlling the SPI bus for the >> LoRa connector and now I need to know how to set them up so they work as >> SPI0.0 >> >> the known pins: >> MCASP0_ACLKX gpio3_14 110 SPI1_SCLK >> MCASP0_FSX gpio3_15 111 SPI1_DO >> MCASP0_AXR0 gpio3_16 112 SPI1_D1 >> GPMC_A11 gpio1_27 59 LoRa_CS1 >> >> after getting this working I would like to write a dts that enables the >> ethernet, set the spi correctly and enables LoRa (set gpio0_22 as a output >> and set high), what are the best resources for doing this? >> >> Regards, >> >> On Monday, January 25, 2021 at 5:35:38 AM UTC+10 Yendor wrote: >> >>> Thanks for the links Jon, >>> >>> I see in /dev/spi: >>> lrwxrwxrwx 1 root root 12 Jan 24 06:30 0.0 -> ../spidev0.0 >>> lrwxrwxrwx 1 root root 12 Jan 24 06:30 0.1 -> ../spidev0.1 >>> lrwxrwxrwx 1 root root 12 Jan 24 06:30 1.0 -> ../spidev1.0 >>> lrwxrwxrwx 1 root root 12 Jan 24 06:30 1.1 -> ../spidev1.1 >>> >>> config-pin give a error >>> ERROR: open() for /sys/devices/platform/ocp/ocp:P9_17_pinmux/state >>> failed, No such file or directory >>> >>> and for spi_test on /dev/spidev0.0 to 1.1 with shorting the mosi and >>> miso pins, I get: >>> sudo ./spi_test --device /dev/spidev0.0 >>> spi mode: 0 >>> bits per word: 8 >>> max speed: 500000 Hz (500 KHz) >>> >>> 00 00 00 00 00 00 >>> 00 00 00 00 00 00 >>> 00 00 00 00 00 00 >>> 00 00 00 00 00 00 >>> 00 00 00 00 00 00 >>> 00 00 00 00 00 00 >>> 00 00 >>> >>> On Sunday, January 24, 2021 at 4:44:57 PM UTC+10 [email protected] >>> wrote: >>> >>>> A quick test is to see if a SPI device has been created under '/dev/'. >>>> >>>> A few SPI test references: >>>> >>>> https://github.com/derekmolloy/exploringBB/tree/version2/chp08/spi/spidev_test >>>> https://elinux.org/BeagleBone_Black_Enable_SPIDEV >>>> https://gist.github.com/pdp7/33a8ad95efcbcc0fadc3f96a70d4b159 >>>> >>>> >>>> Cheers, >>>> >>>> Jon >>>> >>>> On Sat, Jan 23, 2021 at 9:15 PM Yendor <[email protected]> wrote: >>>> >>>>> How can I tell if the SPI interface is enabled? >>>>> >>>>> On Wednesday, January 20, 2021 at 7:24:32 AM UTC+10 Yendor wrote: >>>>> >>>>>> Hi, >>>>>> Carrying on from the SeeedStudio SenseCAP Gateway hacking form this >>>>>> conversation (https://groups.google.com/g/beagleboard/c/Y_Zx_D2HJUA) >>>>>> >>>>>> I am now looking to get the LoRa interface working, the interface is >>>>>> a mPCIe SPI RAK2247 >>>>>> <https://docs.rakwireless.com/Product-Categories/WisLink/RAK2247/Overview/> >>>>>> >>>>>> LoRa card connector. >>>>>> >>>>>> The things I think I need to find out how to do: >>>>>> >>>>>> - Identify the correct SPI bus for the connector; >>>>>> - and what GPIO drives the reset pin (PIN 22) of the connector. >>>>>> >>>>>> if anyone has any ideas on the best why to do this, please feel free >>>>>> to share. >>>>>> >>>>>> Regards, >>>>>> >>>>>> result of gpioinfo: >>>>>> gpiochip0 - 32 lines: >>>>>> line 0: "MDIO_DATA" unused input active-high >>>>>> line 1: "MDIO_CLK" unused input active-high >>>>>> line 2: "SPI0_SCLK" "P9_22" input active-high >>>>>> [used] >>>>>> line 3: "SPI0_D0" "P9_21" input active-high >>>>>> [used] >>>>>> line 4: "SPI0_D1" "P9_18" input active-high >>>>>> [used] >>>>>> line 5: "SPI0_CS0" "P9_17" input active-high >>>>>> [used] >>>>>> line 6: "SPI0_CS1" "cd" input active-low >>>>>> [used] >>>>>> line 7: "ECAP0_IN_PWM0_OUT" "P9_42" input active-high [used] >>>>>> line 8: "LCD_DATA12" "P8_35" input active-high >>>>>> [used] >>>>>> line 9: "LCD_DATA13" "P8_33" input active-high >>>>>> [used] >>>>>> line 10: "LCD_DATA14" "P8_31" input active-high >>>>>> [used] >>>>>> line 11: "LCD_DATA15" "P8_32" input active-high >>>>>> [used] >>>>>> line 12: "UART1_CTSN" "P9_20" input active-high >>>>>> [used] >>>>>> line 13: "UART1_RTSN" "P9_19" input active-high >>>>>> [used] >>>>>> line 14: "UART1_RXD" "P9_26" input active-high >>>>>> [used] >>>>>> line 15: "UART1_TXD" "P9_24" input active-high >>>>>> [used] >>>>>> line 16: "GMII1_TXD3" unused input active-high >>>>>> line 17: "GMII1_TXD2" unused input active-high >>>>>> line 18: "USB0_DRVVBUS" unused input active-high >>>>>> line 19: "XDMA_EVENT_INTR0" "A15" input active-high [used] >>>>>> line 20: "XDMA_EVENT_INTR1" "P9_41" input active-high [used] >>>>>> line 21: "GMII1_TXD1" unused input active-high >>>>>> line 22: "GPMC_AD8" "P8_19" input active-high >>>>>> [used] >>>>>> line 23: "GPMC_AD9" "P8_13" input active-high >>>>>> [used] >>>>>> line 24: "NC" unused input active-high >>>>>> line 25: "NC" unused input active-high >>>>>> line 26: "GPMC_AD10" unused input active-high >>>>>> line 27: "GPMC_AD11" unused input active-high >>>>>> line 28: "GMII1_TXD0" unused input active-high >>>>>> line 29: "RMII1_REFCLK" unused input active-high >>>>>> line 30: "GPMC_WAIT0" "P9_11" input active-high >>>>>> [used] >>>>>> line 31: "GPMC_WPN" "P9_13" input active-high >>>>>> [used] >>>>>> gpiochip1 - 32 lines: >>>>>> line 0: "GPMC_AD0" "P8_25" input active-high >>>>>> [used] >>>>>> line 1: "GPMC_AD1" "P8_24" input active-high >>>>>> [used] >>>>>> line 2: "GPMC_AD2" "P8_05" input active-high >>>>>> [used] >>>>>> line 3: "GPMC_AD3" "P8_06" input active-high >>>>>> [used] >>>>>> line 4: "GPMC_AD4" "P8_23" input active-high >>>>>> [used] >>>>>> line 5: "GPMC_AD5" "P8_22" input active-high >>>>>> [used] >>>>>> line 6: "GPMC_AD6" "P8_03" input active-high >>>>>> [used] >>>>>> line 7: "GPMC_AD7" "P8_04" input active-high >>>>>> [used] >>>>>> line 8: "UART0_CTSN" unused input active-high >>>>>> line 9: "UART0_RTSN" unused input active-high >>>>>> line 10: "UART0_RXD" unused input active-high >>>>>> line 11: "UART0_TXD" unused input active-high >>>>>> line 12: "GPMC_AD12" "P8_12" input active-high >>>>>> [used] >>>>>> line 13: "GPMC_AD13" "P8_11" input active-high >>>>>> [used] >>>>>> line 14: "GPMC_AD14" "P8_16" input active-high >>>>>> [used] >>>>>> line 15: "GPMC_AD15" "P8_15" input active-high >>>>>> [used] >>>>>> line 16: "GPMC_A0" "P9_15" input active-high >>>>>> [used] >>>>>> line 17: "GPMC_A1" "P9_23" input active-high >>>>>> [used] >>>>>> line 18: "GPMC_A2" "P9_14" input active-high >>>>>> [used] >>>>>> line 19: "GPMC_A3" "P9_16" input active-high >>>>>> [used] >>>>>> line 20: "GPMC_A4" unused input active-high >>>>>> line 21: "GPMC_A5" "beaglebone:green:usr0" output >>>>>> active-high [used] >>>>>> line 22: "GPMC_A6" "beaglebone:green:usr1" output >>>>>> active-high [used] >>>>>> line 23: "GPMC_A7" "beaglebone:green:usr2" output >>>>>> active-high [used] >>>>>> line 24: "GPMC_A8" "beaglebone:green:usr3" output >>>>>> active-high [used] >>>>>> line 25: "GPMC_A9" unused input active-high >>>>>> line 26: "GPMC_A10" unused input active-high >>>>>> line 27: "GPMC_A11" unused input active-high >>>>>> line 28: "GPMC_BE1N" "P9_12" input active-high >>>>>> [used] >>>>>> line 29: "GPMC_CSN0" "LS_BUF_EN" output active-high >>>>>> [used] >>>>>> line 30: "GPMC_CSN1" "P8_21" input active-high >>>>>> [used] >>>>>> line 31: "GPMC_CSN2" "P8_20" input active-high >>>>>> [used] >>>>>> gpiochip2 - 32 lines: >>>>>> line 0: "GPMC_CSN3" unused input active-high >>>>>> line 1: "GPMC_CLK" "P8_18" input active-high >>>>>> [used] >>>>>> line 2: "GPMC_ADVN_ALE" "P8_07" input active-high [used] >>>>>> line 3: "GPMC_OEN_REN" "P8_08" input active-high [used] >>>>>> line 4: "GPMC_WEN" "P8_10" input active-high >>>>>> [used] >>>>>> line 5: "GPMC_BE0N_CLE" "P8_09" input active-high [used] >>>>>> line 6: "LCD_DATA0" "P8_45" input active-high >>>>>> [used] >>>>>> line 7: "LCD_DATA1" "P8_46" input active-high >>>>>> [used] >>>>>> line 8: "LCD_DATA2" "P8_43" input active-high >>>>>> [used] >>>>>> line 9: "LCD_DATA3" "P8_44" input active-high >>>>>> [used] >>>>>> line 10: "LCD_DATA4" "P8_41" input active-high >>>>>> [used] >>>>>> line 11: "LCD_DATA5" "P8_42" input active-high >>>>>> [used] >>>>>> line 12: "LCD_DATA6" "P8_39" input active-high >>>>>> [used] >>>>>> line 13: "LCD_DATA7" "P8_40" input active-high >>>>>> [used] >>>>>> line 14: "LCD_DATA8" "P8_37" input active-high >>>>>> [used] >>>>>> line 15: "LCD_DATA9" "P8_38" input active-high >>>>>> [used] >>>>>> line 16: "LCD_DATA10" "P8_36" input active-high >>>>>> [used] >>>>>> line 17: "LCD_DATA11" "P8_34" input active-high >>>>>> [used] >>>>>> line 18: "GMII1_RXD3" unused input active-high >>>>>> line 19: "GMII1_RXD2" unused input active-high >>>>>> line 20: "GMII1_RXD1" unused input active-high >>>>>> line 21: "GMII1_RXD0" unused input active-high >>>>>> line 22: "LCD_VSYNC" "P8_27" input active-high >>>>>> [used] >>>>>> line 23: "LCD_HSYNC" "P8_29" input active-high >>>>>> [used] >>>>>> line 24: "LCD_PCLK" "P8_28" input active-high >>>>>> [used] >>>>>> line 25: "LCD_AC_BIAS_EN" "P8_30" input active-high [used] >>>>>> line 26: "MMC0_DAT3" unused input active-high >>>>>> line 27: "MMC0_DAT2" unused input active-high >>>>>> line 28: "MMC0_DAT1" unused input active-high >>>>>> line 29: "MMC0_DAT0" unused input active-high >>>>>> line 30: "MMC0_CLK" unused input active-high >>>>>> line 31: "MMC0_CMD" unused input active-high >>>>>> gpiochip3 - 32 lines: >>>>>> line 0: "GMII1_COL" unused input active-high >>>>>> line 1: "GMII1_CRS" unused input active-high >>>>>> line 2: "GMII1_RXER" unused input active-high >>>>>> line 3: "GMII1_TXEN" unused input active-high >>>>>> line 4: "GMII1_RXDV" unused input active-high >>>>>> line 5: "I2C0_SDA" unused input active-high >>>>>> line 6: "I2C0_SCL" unused input active-high >>>>>> line 7: "EMU0" unused input active-high >>>>>> line 8: "EMU1" unused input active-high >>>>>> line 9: "GMII1_TXCLK" unused input active-high >>>>>> line 10: "GMII1_RXCLK" unused input active-high >>>>>> line 11: "NC" unused input active-high >>>>>> line 12: "NC" unused input active-high >>>>>> line 13: "USB1_DRVVBUS" unused input active-high >>>>>> line 14: "MCASP0_ACLKX" "P9_31" input active-high [used] >>>>>> line 15: "MCASP0_FSX" "P9_29" input active-high >>>>>> [used] >>>>>> line 16: "MCASP0_AXR0" "MCASP0_AHCLKR" output active-high >>>>>> [used] >>>>>> line 17: "MCASP0_AHCLKR" "P9_28" input active-high [used] >>>>>> line 18: "MCASP0_ACLKR" "P9_92" input active-high [used] >>>>>> line 19: "MCASP0_FSR" "P9_27" input active-high >>>>>> [used] >>>>>> line 20: "MCASP0_AXR1" "P9_91" input active-high [used] >>>>>> line 21: "MCASP0_AHCLKX" "P9_25" input active-high [used] >>>>>> line 22: "NC" unused input active-high >>>>>> line 23: "NC" unused input active-high >>>>>> line 24: "NC" unused input active-high >>>>>> line 25: "NC" unused input active-high >>>>>> line 26: "NC" unused input active-high >>>>>> line 27: "NC" unused input active-high >>>>>> line 28: "NC" unused input active-high >>>>>> line 29: "NC" unused input active-high >>>>>> line 30: "NC" unused input active-high >>>>>> line 31: "NC" unused input active-high >>>>>> >>>>> -- >>>>> For more options, visit http://beagleboard.org/discuss >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "BeagleBoard" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/beagleboard/02816dce-8292-4276-b8d3-fcea1ba17d8fn%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/beagleboard/02816dce-8292-4276-b8d3-fcea1ba17d8fn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ca10c8a8-eefc-4dd1-a574-ad049dce3ff2n%40googlegroups.com.
