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