>>>>> "Johnny" == Johnny Hung <johnny.hack...@gmail.com> writes:
Johnny> Hi All: Johnny> Is there a alreday written GPIO dirver or example for Johnny> MPC8313/similar ppc platform. It looks like many people need GPIO Johnny> dirver to control LED, etc... I think is it possible to write a Johnny> general gpio driver for all ppc platform and only need to modify gpio Johnny> iomap information of dtb file. Please give me a advice. Thanks in Johnny> advanced. Sure, it's arch/powerpc/sysdev/mpc8xxx_gpio.c, included since 2.6.28. To use it, simply enable CONFIG_MPC8xxx_GPIO and add a gpio-controller node to your dts, similar to how it's done in arch/powerpc/boot/dts/mpc837*_rdb.dts. See Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt for details of the dts bindings. -- Bye, Peter Korsgaard _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
