Difference between revisions of "DESK-XZ7-L/Peripherals/NAND"
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=== Device tree configuration === | === Device tree configuration === | ||
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| + | {{ImportantMessage|text=If user use <code>petalinux-config</code> for configuration NAND partition this is not apply to device-tree correctly.}} | ||
Here below an example of device tree configuration used on standard DAVE's kit for the [[BORA Lite SOM |BORA Lite]] ''NAND flash'': | Here below an example of device tree configuration used on standard DAVE's kit for the [[BORA Lite SOM |BORA Lite]] ''NAND flash'': | ||
Latest revision as of 14:06, 17 May 2024
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Contents
Peripheral NAND[edit | edit source]
Device tree configuration[edit | edit source]
 If user use |
Here below an example of device tree configuration used on standard DAVE's kit for the BORA Lite NAND flash:
From bora.dtsi:
...
...
&nand0{
partition@nand-bootbin {
label = "bootbin";
reg = <0x00000000 0x01600000>;
};
partition@nand-ubootenv {
label = "ubootenv";
reg = <0x01600000 0x00040000>;
};
partition@nand-rootfs {
label = "rootfs";
reg = <0x01640000 0x0>;
};
};
...
...
Accessing the peripheral[edit | edit source]
Linux messages at boot time (boot from SD with NAND flash support)[edit | edit source]
[ 0.709510] nand: device found, Manufacturer ID: 0xef, Chip ID: 0xd3 [ 0.712698] nand: Winbond W29N08GV [ 0.714412] nand: 1024 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64 ... [ 0.741479] 3 fixed-partitions partitions found on MTD device W29N08GV [ 0.748115] Creating 3 MTD partitions on "W29N08GV": [ 0.753138] 0x000000000000-0x000001600000 : "bootbin" [ 0.760908] 0x000001600000-0x000001640000 : "ubootenv" [ 0.776202] 0x000001640000-0x000040000000 : "rootfs"
Check the mtd partitions[edit | edit source]
root@boralite:~# cat /proc/mtd dev: size erasesize name mtd0: 01600000 00020000 "bootbin" mtd1: 00040000 00020000 "ubootenv" mtd2: 3e9c0000 00020000 "rootfs"
Linux messages at boot time (boot from NAND flash)[edit | edit source]
[ 0.705403] nand: device found, Manufacturer ID: 0xef, Chip ID: 0xd3 [ 0.708607] nand: Winbond W29N08GV [ 0.710317] nand: 1024 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64 ... [ 1.076003] 3 fixed-partitions partitions found on MTD device W29N08GV [ 1.082625] Creating 3 MTD partitions on "W29N08GV": [ 1.087662] 0x000000000000-0x000001600000 : "bootbin" [ 1.101780] 0x000001600000-0x000001640000 : "ubootenv" [ 1.111817] 0x000001640000-0x000040000000 : "rootfs" ... [ 1.209392] ubi0: attaching mtd2 [ 3.943763] ubi0: scanning is finished [ 3.970955] ubi0: attached mtd2 (name "rootfs", size 1001 MiB) [ 3.976801] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 129024 bytes [ 3.983713] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 512 [ 3.990409] ubi0: VID header offset: 512 (aligned 512), data offset: 2048 [ 3.997277] ubi0: good PEBs: 8010, bad PEBs: 4, corrupted PEBs: 0 [ 4.003395] ubi0: user volume: 1, internal volumes: 1, max. volumes count: 128 [ 4.010637] ubi0: max/mean erase counter: 1/0, WL threshold: 4096, image sequence number: 1501637841 [ 4.019766] ubi0: available PEBs: 0, total reserved PEBs: 8010, PEBs reserved for bad PEB handling: 156 [ 4.029253] ubi0: background thread "ubi_bgt0d" started, PID 54 [ 4.048733] UBIFS (ubi0:0): Mounting in unauthenticated mode [ 4.054771] UBIFS (ubi0:0): background thread "ubifs_bgt0_0" started, PID 55 [ 4.098540] UBIFS (ubi0:0): recovery needed [ 4.252929] UBIFS (ubi0:0): recovery completed [ 4.257516] UBIFS (ubi0:0): UBIFS: mounted UBI device 0, volume 0, name "ubifs" [ 4.264862] UBIFS (ubi0:0): LEB size: 129024 bytes (126 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 4.274857] UBIFS (ubi0:0): FS size: 1011419136 bytes (964 MiB, 7839 LEBs), journal size 9033728 bytes (8 MiB, 71 LEBs) [ 4.285664] UBIFS (ubi0:0): reserved for root: 0 bytes (0 KiB) [ 4.291525] UBIFS (ubi0:0): media format: w4/r0 (latest is w5/r0), UUID 18F323BA-5A9C-422A-912C-2C06647F3EDF, small LPT model ...
Check the mtd partitions[edit | edit source]
root@boralite:~# cat /proc/mtd dev: size erasesize name mtd0: 01600000 00020000 "bootbin" mtd1: 00040000 00020000 "ubootenv" mtd2: 3e9c0000 00020000 "rootfs"
