Ok so i cant get the mcasp0 going for now. Its only important in the
future. Still as per the code below i cant even get
GPIO pins to set. I am sure i am doing something wrong but i am at a
loss to see it.
On 4/20/2016 11:54 AM, Rick Mann wrote:
> I have it working (to some degree) on 4.4.7-bone-rt-r9. I had to change the
> boot DTB to not include the edma fix, and to set the mcasp clk (it doesn't
> work if you set it in the overlay, not sure why. There's a thread about it
> somewhere).
>
>
>> On Apr 20, 2016, at 10:57 , evilwulfie <evilwul...@gmail.com> wrote:
>>
>> Beware of electronics engineers programming <--- LOL
>>
>> I read on the lists about not being able to load the audio cape dtbo on
>> 4.1.14-bone-rt-r17
>> I disabled the onboard HDMI in Uboot
>> I tried with failure just to see if the audio cape will load
>>
>> Apr 20 16:59:56 beaglebone kernel: [ 149.758497] bone_capemgr
>> bone_capemgr: part_number 'BB-BONE-AUDI-02', version 'N/A'
>> Apr 20 16:59:56 beaglebone kernel: [ 149.766308] bone_capemgr
>> bone_capemgr: slot #4: override
>> Apr 20 16:59:56 beaglebone kernel: [ 149.771655] bone_capemgr
>> bone_capemgr: Using override eeprom data at slot 4
>> Apr 20 16:59:56 beaglebone kernel: [ 149.778697] bone_capemgr
>> bone_capemgr: slot #4: 'Override Board Name,00A0,Override
>> Manuf,BB-BONE-AUDI-02'
>>
>>
>> nothing shows as loaded
>>
>> debian@beaglebone:~$ cat /sys/devices/platform/bone_capemgr/slots
>> 0: PF---- -1
>> 1: PF---- -1
>> 2: PF---- -1
>> 3: PF---- -1
>>
>>
>>
>> I have a project that will eventually use the mcasp0 and am trying to
>> write an overlay to set all pins
>> so i figured i would try to set the mcasp0 pins and it fails
>>
>> I also have a tough time just setting random GPIO pins which i cant
>> quite figure out
>>
>> so far i can get the UART1, UART4, UART5 and I2C1 loaded correctly from
>> one file
>>
>> now its just GPIO pins and the mcasp0
>>
>> this is the snippit of the gpio stuff that dont work, rest of file below
>> removed for clarity
>>
>>
>> mygpio0_pins_default: mygpio0_pins_default {
>> pinctrl-single,pins = <
>> 0x150 ( PIN_INPUT | MUX_MODE7 ) /*
>> (A17) spi0_sclk.gpio0[2] */
>> 0x154 ( PIN_INPUT | MUX_MODE7 ) /*
>> (B17) spi0_d0.gpio0[3] */
>> 0x164 ( PIN_INPUT | MUX_MODE7 ) /*
>> (C18) eCAP0_in_PWM0_out.gpio0[7] */
>> 0x20 ( PIN_INPUT | MUX_MODE7 ) /*
>> (U10) gpmc_ad8.gpio0[22] */
>> 0x24 ( PIN_INPUT | MUX_MODE7 ) /*
>> (T10) gpmc_ad9.gpio0[23] */
>> 0x28 ( PIN_INPUT | MUX_MODE7 ) /*
>> (T11) gpmc_ad10.gpio0[26] */
>> 0x2c ( PIN_INPUT | MUX_MODE7 ) /*
>> (U12) gpmc_ad11.gpio0[27] */
>>> ;
>> };
>>
>> fragment@5 {
>> target = <&mygpio0>;
>> __overlay__ {
>> status = "okay";
>> pinctrl-names = "default";
>> pinctrl-0 = <&mygpio0_pins_default>;
>> };
>> };
>>
>> even with ALL the GPIO pins commented out the cape does not load even
>> though overlay compiles correctly
>> you would think that since no pins are being set the uarts and i2ci but
>> would be set.
>>
>> any help would be appreciated
>>
>>
>>
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