PN7120 NFC调试记录

PN7120 NFC调试记录

Platform: RK3368
OS: Android 6.0
Kernel: 3.10.0

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整个调试流程,基本上按照官方移植文档操作就可以了.NXP官方代码(Android Marshmallow 6.0.1):

https://github.com/NXPNFCLinux/nxpnfc_android_marshmallow

下载后目录里面有移植文档:AN11690 - NXPNCI Android Porting Guidelines.pdf,FactoryTestApp里面是测试工具.

1. 内核驱动

下载最新驱动,官方最新代码:

https://github.com/NXPNFCLinux/nxp-pn5xx;

修改drivers/misc/Kconfig,添加:

source "drivers/misc/nxp-pn5xx/Kconfig"

修改drivers/misc/Makefile,添加:

obj-$(CONFIG_NFC_NXP_PN5XX) += nxp-pn5xx/

修改Makefile

obj-$(CONFIG_NFC_NXP_PN5XX)                += pn5xx_i2c.o

然后内核menuconfig配置好就可以了;接着添加设备树,将以下节点添加到对应的i2c节点中:

+       pn544: pn544@28 {
+               compatible = "nxp,pn544";
+               reg = <0x28>;