#@TYPE: Machine #@NAME: NXP i.MX28 Evaluation Kit #@SOC: i.MX28 #@DESCRIPTION: Machine configuration for NXP i.MX28 Evaluation Kit #@MAINTAINER: Otavio Salvador MACHINEOVERRIDES =. "mxs:mx28:" include conf/machine/include/imx-base.inc include conf/machine/include/tune-arm926ejs.inc IMXBOOTLETS_MACHINE = "iMX28_EVK" UBOOT_CONFIG ??= "sd" UBOOT_CONFIG[sd] = "mx28evk_config,sdcard" UBOOT_CONFIG[nand] = "mx28evk_nand_config,ubifs" UBOOT_CONFIG[sd-auart-console] = "mx28evk_auart_console_config,sdcard" KERNEL_DEVICETREE = "imx28-evk.dtb" SERIAL_CONSOLES = "115200;ttyAMA0" MACHINE_FEATURES = "usbgadget usbhost vfat alsa touchscreen" ## Parameters for NAND IC part-# K9LBG08U0D-PCB0 MKUBIFS_ARGS = "--min-io-size 4096 --leb-size 516096 --max-leb-cnt 8139" UBINIZE_ARGS = "--min-io-size 4096 --peb-size 524288 --sub-page-size 4096" MXSBOOT_NAND_ARGS = "-w 4096 -o 218 -e 524288" ## To determine parameters' values, run "ubiattach -m 6 /dev/ubi_ctrl" ## (assuming the rootfs device is /dev/mtd6). Here's an example: # # ubiattach -m 6 /dev/ubi_ctrl # [ 28.640396] UBI: attaching mtd6 to ubi0 # [ 53.000817] UBI: scanning is finished # [ 53.126052] UBI: attached mtd6 (name "filesystem", size 4079 MiB) to ubi0 # [ 53.133109] UBI: PEB size: 524288 bytes (512 KiB), LEB size: 516096 bytes # [ 53.140149] UBI: min./max. I/O unit sizes: 4096/4096, sub-page size 4096 # [ 53.146895] UBI: VID header offset: 4096 (aligned 4096), data offset: 8192 # [ 53.153931] UBI: good PEBs: 8139, bad PEBs: 20, corrupted PEBs: 0 # [ 53.160263] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128 # [ 53.167444] UBI: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 0 # [ 53.175872] UBI: available PEBs: 4113, total reserved PEBs: 4026, PEBs reserved for bad PEB handling: 140 # [ 53.189399] UBI: background thread "ubi_bgt0d" started, PID 217 # UBI device number 0, total 8139 LEBs (4200505344 bytes, f GiB), available 4113 LEBs (2122702848 bytes, f GiB), LEB size 516096 bytes (f KiB) # --min-io-size: see "min./max. I/O unit sizes: " in the ubiattach output # --leb-size: see "LEB size:" in the ubiattach output # --max-leb-cnt: see "total LEBs" in the ubiattach output, where is the number you want # --peb-size: see "PEB size:" in the ubiattach output (pick the value in bytes) # --sub-page-size: see "sub-page size" in the ubiattach output