掌機 - Pyra - Build Kernel

參考資訊：
https://projects.goldelico.com/p/gta04-kernel
https://dev.pyra-handheld.com/daveshah/pyra-uboot/-/tree/pyra-alt-ddr3
https://forum.digikey.com/t/debian-getting-started-with-the-omap5432-uevm/12455

步驟如下：

$ cd
$ git clone http://git.goldelico.com/letux-kernel.git
$ cd letux-kernel
$ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make pyra_defconfig
$ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make all -j4

P.S. zImage、omap5-letux-cortex15-v5.3+pyra-v5.3.dtb

推薦的U-Boot參數

arch=arm
baudrate=115200
board=pyra+lc15
board_name=pyra+lc15
bootcmd=fatload mmc 0 0x82000000 zImage;fatload mmc 0 0x88000000 dtb;bootz 0x82000000 - 0x88000000
bootdelay=2
cpu=armv7
fdtfile=omap5-letux-cortex15-v5.3+pyra-v5.3.dtb
fileaddr=88000000
filesize=0
mmcdev=0
scsidevs=0
soc=omap5
stderr=serial
stdin=serial
stdout=serial
usbethaddr=02:e1:18:13:12:70
vendor=pandora
ver=U-Boot 2016.11-g0fecbc0a98-dirty (Dec 24 2020 - 19:14:56 +0100)