[ptxdist] Pin ctrl in devices tree files

[ptxdist] Pin ctrl in devices tree files

[Sophie]

Hello,

This question concerns the imx6qdl-tqma6x.dtsi file written by Sascha Hauer,
Pengutronix, but I don't know if he can answer. 

Nevertheless, it could be a more general question : I want to know if the
32-bit words programmed in the following lines concern the
IOMUXC_SW_PAD_CTL_PAD registers that is to say IOMUXC_SW_PAD_CTL_PAD_GPIO5
and IOMUXC_SW_PAD_CTL_PAD_GPIO6 registers (Cf. theIMX6SDL Reference Manuel). 

Because in the Reference Manuel bits 31-17 are reserved and always 0. Why is
there a '4' in these bits ? Or is it another register ?

-----------------------------------------------------------------------

i2c3 {
		pinctrl_i2c3_2: i2c3grp-2 {
			fsl,pins = <
				MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
				MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b8b1
			>;
		};
	};

-----------------------------------------------------------------------

Best regards,
Sophie CARAYOL


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Re: [ptxdist] Pin ctrl in devices tree files

[Lucas Stach]

Am Dienstag, den 20.05.2014, 07:59 +0000 schrieb Sophie:
> Hello,
> 
> This question concerns the imx6qdl-tqma6x.dtsi file written by Sascha Hauer,
> Pengutronix, but I don't know if he can answer. 
> 
> Nevertheless, it could be a more general question : I want to know if the
> 32-bit words programmed in the following lines concern the
> IOMUXC_SW_PAD_CTL_PAD registers that is to say IOMUXC_SW_PAD_CTL_PAD_GPIO5
> and IOMUXC_SW_PAD_CTL_PAD_GPIO6 registers (Cf. theIMX6SDL Reference Manuel). 
> 
> Because in the Reference Manuel bits 31-17 are reserved and always 0. Why is
> there a '4' in these bits ? Or is it another register ?
> 
> -----------------------------------------------------------------------
> 
> i2c3 {
> 		pinctrl_i2c3_2: i2c3grp-2 {
> 			fsl,pins = <
> 				MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
> 				MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b8b1
> 			>;
> 		};
> 	};
> 
Please look at
Documentation/devicetree/bindings/pinctrl/fsl,imx6q-pinctrl.txt to see
what those values are supposed to mean.

Regards,
Lucas

-- 
Pengutronix e.K.             | Lucas Stach                 |
Industrial Linux Solutions   | http://www.pengutronix.de/  |


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