How to use NFC component pn 7120 with Intel Edison ?

bryantrilck — Mon, 18 Apr 2016 07:48:40 GMT

Hi all,

I am working on Intel Edison with Yocto and kernel 3.10 and I have to use NFC component NXP pn7120.

The guide provided by NXP about Linux Software Stack Integration presents only ARM architecture. So how could I do to use NXP pn7120 for x86 architecture and Yocto? Currently I already made the recipe and compile the driver for the target. But I do not know how to modify the device tree or platform data. Could you please tell me how I could do?

Thanks,

Bryan

Re: How to use NFC component pn 7120 with Intel Edison ?

mihaipop11 — Thu, 28 Apr 2016 10:58:40 GMT

Hi Bryan, i myself am working on the same very thing but i'm missing the yocto recipe, could you provide that for me?

I have integrated the driver in the kernel via device tree. These are the steps:

Copy the Qualcomm dts file from this folder into linux-2.6-imx/arch/arm/boot/dts

Copy the Qualcomm driver sources from this folder into linux-2.6-imx/drivers/net/ethernet

Add path to the new driver into kernel by modifying the Makefile and Kconfig file from the ethernet folder like this:

Add at the bottom of the Kconfig file: source "drivers/net/ethernet/qualcomm/Kconfig"

Add at the bottom of the Makefile file: obj-$(CONFIG_NET_VENDOR_QUALCOMM) += qualcomm/

and the dts file should look like this:

* Qualcomm qca7000

/dts-v1/;

/ {

compatible = "qcom,qca7000";

ssp2: spi@80014000 {

#address-cells = <1>;

#size-cells = <0>;

compatible = "fsl,imx6-spi";

pinctrl-names = "default";

pinctrl-0 = <&spi2_pins_a>;

status = "okay";

qca7000: ethernet@0 {

compatible = "qca,qca7000";

reg = <0x0>; /* CE 0 */

interrupt-parent = <&gpio3>; /* GPIO Bank 3 */

interrupts = <25 0x1>; /* Index: 25, rising edge */

spi-cpha; /* SPI mode: CPHA=1 */

spi-cpol; /* SPI mode: CPOL=1 */

spi-max-frequency = <8000000>; /* freq: 8 MHz */

};

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How to use NFC component pn 7120 with Intel Edison ?

Re: How to use NFC component pn 7120 with Intel Edison ?