Zipit Z2 Buildroot External

This is an external buildroot configuration for the Zipit Z2 Handheld, tested with Buildroot 2015.11. Your Zipit needs to have the u-boot bootloader instead of the stock blob bootloader. See this if you need to install u-boot.

This is a work-in-progress.

Usage

Clone the Buildroot repo (or download tarball) and this repo

For a SD Card bootable image, in the Buildroot directory run:

 make BR2_EXTERNAL=/path/to/zipitz2-buildroot-external zipitz2_defconfig

This will tell Buildroot to use the files in this repo. You can now build Buildroot running make or configure further with make menuconfig, make linux-menuconfig, or make busybox-menuconfig.

JFFS Usage

Maximum sizes to fit internal NOR flash on the Zipit:

• Kernel (MTD2): 1,179,648 Bytes
• JFFS (MTD3): 6,684,672 Bytes

For a flashable jffs2 image (for internal 8MB NOR):

 make BR2_EXTERNAL=/path/to/zipitz2-buildroot-external zipitz2_jffs_defconfig

This will tell Buildroot to use the files in this repo. You can now build Buildroot running make or configure further with make menuconfig, make linux-menuconfig, or make busybox-menuconfig.

To install the image to internal flash you need a SD card/rootfs that has the proper partitions setup. You could do the Buildroot SD image (see above) or use an already available rootfs like Slug_'s openwrt-gmenu2x-jffs. Copy from Buildroot output/images/rootfs.jffs2 and output/images/uImage to the SD card rootfs. After bootup, copy the files to the proper mtdblocks:

 dd if=uImage of=/dev/mtdblock2        # Kernel
 dd if=rootfs.jffs2 of=/dev/mtdblock3  # rootfs

Saving your changes

Thanks to xSmurf for this save script. This will save your linux, busybox and buildroot configs back to the external-buildroot repo (this dir). To use, run the following from your Buildroot dir:

 /path/to/zipitz2-buildroot-external/scripts/save.sh

WiFi

I added in the wpa-connect script from openwrt-zipit. Edit /etc/wpa.conf with your proper access point settings and run wpa-connect to connect.

Zipit Console Settings

The zipit keymap and screen font are loaded in /etc/inittab. Slug_'s version of bldaemon-zipit is included to handle LCD and keyboard backlights.

TODO

• Fix mtd partition layout in kernel to match openwrt
• Slim down busybox
• Create suspend script (disable/renable wifi)
• ntp/htpdate/? time sync
• wifi search/add script?
• put zipit specific scripts into menuconfig as indivdual packages?
• lots more, I'm sure :-)