On Fri, May 9, 2014 at 5:57 AM, Nishanth Menon <nm@xxxxxx> wrote:
> On Fri 09 May 2014 12:56:23 AM CDT, Matt Ranostay wrote:
>> Add missing i2c2 bus define to access various cape and
>> prototype/breakout board devices.
>>
>> Signed-off-by: Matt Ranostay <mranostay@xxxxxxxxx>
>> ---
>> arch/arm/boot/dts/am335x-bone-common.dtsi | 16 ++++++++++++++++
>> 1 file changed, 16 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
>> index 2e7d932..2aedfee 100644
>> --- a/arch/arm/boot/dts/am335x-bone-common.dtsi
>> +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
>> @@ -84,6 +84,13 @@
>> >;
>> };
>>
>> + i2c2_pins: pinmux_i2c2_pins {
>> + pinctrl-single,pins = <
>> + 0x178 (PIN_INPUT_PULLUP | MUX_MODE3) /* i2c2_sda.uart1_ctsn */
>> + 0x17c (PIN_INPUT_PULLUP | MUX_MODE3) /* i2c2_scl.uart1_rtsn */
>
> I dont understand the comment -> i2c2_sda is being muxed to uart1_cstsn?
>
Good catch I mixed up the ordering of the comment.
>> + >;
>> + };
>> +
>> uart0_pins: pinmux_uart0_pins {
>> pinctrl-single,pins = <
>> 0x170 (PIN_INPUT_PULLUP | MUX_MODE0) /* uart0_rxd.uart0_rxd */
>> @@ -222,6 +229,15 @@
>>
>> };
>>
>> +
>> +&i2c2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&i2c2_pins>;
>> +
>> + status = "okay";
>> + clock-frequency = <400000>;
>
> How did we decide on 400KHz -> do all all i2c2 devices on ALL capes
> work in full speed? OR should we consider a conservative 100KHz?
>
Probably a better plan.
Will submit v2 this weekend.
>> +};
>> +
>> /include/ "tps65217.dtsi"
>>
>> &tps {
>
>
> --
> Regards,
> Nishanth Menon
>
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