Matt,
Did you solve your problem? I have a very similar issue to yours right now.
I've been trying to find a solution for a few days.
Andrew
On Wednesday, December 11, 2013 7:13:39 AM UTC-5, Sika wrote:
>
> Pretty recent, actually, Mike...
>
> 3.8.13-bone20
>
> And the pins are changing -- it's outputing 37:
>
> sudo cat $PINS|grep 840
> pin 16 (44e10840) 00000037 pinctrl-single
>
> and the multimeter says it is pulled up.
>
> I used a different overlay tree as well -- and get the same thing
> /dts-v1/;
> /plugin/;
>
> / {
> compatible = "ti,beaglebone", "ti,beaglebone-black";
> part-number = "BB-W1";
> version = "00A0";
>
> exclusive-use = "P9.15", "gpio1_16";
>
> fragment@0 {
> target = <&am33xx_pinmux>;
> __overlay__ {
> bb_w1_pins: pinmux_bb_w1_pins {
> pinctrl-single,pins = <
> 0x040 0x37 /*pin P9_15 input with pullup mode 7 -
> w1-gpio */
> >;
> };
> };
> };
>
> fragment@1 {
> target = <&ocp>;
> __overlay__ {
> onewire@0 {
> status = "okay";
> compatible = "w1-gpio";
> pinctrl-names = "default";
> pinctrl-0 = <&bb_w1_pins>;
>
> gpios = <&gpio2 16 0>; /*grrr I think this means gpio1_16
> (using 1 to 4 instread of 0-3)*/
> };
> };
> };
> };
>
>
> I'd greatly appreciate any help on this I can get!
>
> Kind regards
>
> Matt
>
>
>
>
>
>
> On Wednesday, December 11, 2013 7:57:21 PM UTC+10, Mike Bremford wrote:
>>
>> Which kernel - "uname -a"? I don't think you can change the pinmux for
>> pins under 3.12 yet - well I couldn't anyway, although it worked for me
>> under 3.8. Check by doing "grep 44e10840
>> /sys/kernel/debug/pinctrl/44e10800.pinmux/pins" - is it 00000037? Is the
>> pin actually pulled up? Test with a multimeter and/or add an external
>> pullup resistor.
>>
>>
>> On 11 December 2013 08:29, Sika <[email protected]> wrote:
>>
>>> Well it says it loads -- but it does not work. Help appreciated!
>>>
>>> Thanks
>>>
>>> Matt
>>>
>>>
>>> On Tuesday, December 10, 2013 6:31:12 PM UTC+10, Sika wrote:
>>>>
>>>> Oh, by the way ...the blob is loaded:
>>>>
>>>>
>>>> grubby@ubuntu-armhf:~/python/projects$ cat $SLOTS
>>>> 0: 54:PF---
>>>> 1: 55:PF---
>>>> 2: 56:PF---
>>>> 3: 57:PF---
>>>> 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
>>>> 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
>>>> 6: ff:P-O-L Override Board Name,00A0,Override Manuf,w1
>>>>
>>>>
>>
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