Hi John, > I have made custom audio cape using TLV320AIC3107 codec and here is a schematic diagram.
<https://lh3.googleusercontent.com/-CxN1eNZnS_M/VBqJ2t5aMBI/AAAAAAAAAfA/1vLFnGnxNVU/s1600/audio%2Bcape.png> My device tree is as follows : /dts-v1/; /plugin/; / { compatible = "ti,beaglebone", "ti,beaglebone-black"; /* identification */ part-number = "BB-BONE-AUDI-02"; version = "00A0", "A0"; /* state the resources this cape uses */ exclusive-use = /* the pin header uses */ "P9.31", /* mcasp0: mcasp0_aclkx */ "P9.30", /* mcasp0: mcasp0_axr0 */ "P9.29", /* mcasp0: mcasp0_fsx */ "P9.28", /* mcasp0: mcasp0_axr2 */ "P9.25", /* mcasp0: mcasp0_ahclkx */ /* the hardware ip uses */ "mcasp0"; fragment@0 { target = <&am33xx_pinmux>; __overlay__ { i2c2_pins: pinmux_i2c2_pins { pinctrl-single,pins = < 0x150 0x72 /*spi0_scl.i2c2_sda,SLEWCTRL_SLOW | INPUT_PULLUP |MODE2*/ 0x154 0x72 /*spi0_d0.i2c2_scl,SLEWCTRL_SLOW | INPUT_PULLUP | MODE2*/ >; }; bone_audio_cape_audio_pins: pinmux_bone_audio_cape_audio_pins { pinctrl-single,pins = < 0x1ac 0x20 /* mcasp0_ahclkx, INPUT | MODE0 */ 0x19c 0x22 /* mcasp0_axr2, INPUT | MODE2 */ 0x194 0x20 /* mcasp0_fsx, INPUT | MODE0 */ 0x198 0x00 /* mcasp0_axr0, OUTPUT | MODE0 */ 0x190 0x20 /* mcasp0_aclkx, INPUT | MODE0 */ >; }; }; }; fragment@1 { target = <&i2c2>; __overlay__ { #address-cells = <1>; #size-cells = <0>; clock-frequency = <100000>; status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&i2c2_pins>; tlv320aic3007: tlv320aic3007@18 { compatible = "ti,tlv320aic3007"; reg = <0x18>; status = "okay"; }; }; }; fragment@2 { target = <&mcasp0>; __overlay__ { pinctrl-names = "default"; pinctrl-0 = <&bone_audio_cape_audio_pins>; status = "okay"; op-mode = <0>; /* MCASP_IIS_MODE */ tdm-slots = <2>; num-serializer = <16>; serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */ 0 0 2 1 /* AXR0 AXR1 AXR2 AXR3 */ 0 0 0 0 0 0 0 0 0 0 0 0 >; tx-num-evt = <1>; rx-num-evt = <1>; }; }; fragment@3 { target = <&ocp>; __overlay__ { sound { compatible = "ti,da830-evm-audio"; ti,model = "DA830 EVM"; ti,audio-codec = <&tlv320aic3007>; ti,mcasp-controller = <&mcasp0>; ti,codec-clock-rate = <12000000>; ti,audio-routing = "Headphone Jack", "HPLOUT", "Headphone Jack", "HPROUT", "Line Out", "LLOUT", "Line Out", "RLOUT", "MIC3L", "Mic Jack", "MIC3R", "Mic Jack", "LINE1L", "Line In", "LINE2L", "Line In", "LINE1R", "Line In", "LINE2R", "Line In"; }; }; }; }; I install DT and here is for confirmation : in dmesg : [ 254.659557] bone-capemgr bone_capemgr.8: part_number 'BB-BONE-AUDI-02', version 'N/A' [ 254.659641] bone-capemgr bone_capemgr.8: slot #7: generic override [ 254.659659] bone-capemgr bone_capemgr.8: bone: Using override eeprom data at slot 7 [ 254.659677] bone-capemgr bone_capemgr.8: slot #7: 'Override Board Name,00A0,Override Manuf,BB-BONE-AUDI-02' [ 254.659784] bone-capemgr bone_capemgr.8: slot #7: Requesting part number/version based 'BB-BONE-AUDI-02-00A0.dtbo [ 254.659802] bone-capemgr bone_capemgr.8: slot #7: Requesting firmware 'BB-BONE-AUDI-02-00A0.dtbo' for board-name 'Override Board Name', version '00A0' [ 254.668469] bone-capemgr bone_capemgr.8: slot #7: dtbo 'BB-BONE-AUDI-02-00A0.dtbo' loaded; converting to live tree [ 254.668961] bone-capemgr bone_capemgr.8: slot #7: #4 overlays [ 254.678886] of_get_named_gpio_flags: can't parse gpios property [ 254.682895] 1-0018 supply IOVDD not found, using dummy regulator [ 254.682971] 1-0018 supply DVDD not found, using dummy regulator [ 254.683035] 1-0018 supply AVDD not found, using dummy regulator [ 254.683096] 1-0018 supply DRVDD not found, using dummy regulator [ 254.692524] davinci_evm sound.13: tlv320aic3x-hifi <-> 48038000.mcasp mapping ok [ 254.701641] bone-capemgr bone_capemgr.8: slot #7: Applied #4 overlays. root@beaglebone:~# cat /proc/asound/devices 2: [ 0- 0]: digital audio playback 3: [ 0- 0]: digital audio capture 4: [ 0] : control 33: : timer root@beaglebone:~# aplay -L null Discard all samples (playback) or generate zero samples (capture) default:CARD=EVM DA830 EVM, Default Audio Device sysdefault:CARD=EVM DA830 EVM, Default Audio Device root@beaglebone:~# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: EVM [DA830 EVM], device 0: AIC3X tlv320aic3x-hifi-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 Now I try to play wave file : root@beaglebone:~/Desktop# aplay -vv test_stereo_8000Hz_8bit_PCM.wav Playing WAVE 'test_stereo_8000Hz_8bit_PCM.wav' : Unsigned 8 bit, Rate 8000 Hz, Stereo Plug PCM: Linear conversion PCM (S16_LE) Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : U8 subformat : STD channels : 2 rate : 8000 exact rate : 8000 (8000/1) msbits : 8 buffer_size : 16000 period_size : 1000 period_time : 125000 tstamp_mode : NONE period_step : 1 avail_min : 1000 period_event : 0 start_threshold : 16000 stop_threshold : 16000 silence_threshold: 0 silence_size : 0 boundary : 2097152000 Slave: Hardware PCM card 0 'DA830 EVM' device 0 subdevice 0 Its setup is: stream : PLAYBACK access : MMAP_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 8000 exact rate : 8000 (8000/1) msbits : 16 buffer_size : 16000 period_size : 1000 period_time : 125000 tstamp_mode : NONE period_step : 1 avail_min : 1000 period_event : 0 start_threshold : 16000 stop_threshold : 16000 silence_threshold: 0 silence_size : 0 boundary : 2097152000 appl_ptr : 0 hw_ptr : 0 ####### + | 19% after that board freezes and not responding. When I check dmesg, I see the following error: root@beaglebone:~/Desktop# dmesg [ 904.298073] omap_i2c 4819c000.i2c: Arbitration lost [ 905.330496] omap_i2c 4819c000.i2c: controller timed out You have Idea, what's wrong ? Please help me. Thanks in Advance. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
