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Questions tagged [flash-memory]

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143 questions
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I'm working on booting U-Boot from the SPI flash memory of an Arty A7 100T FPGA and encountering an issue where U-Boot does not execute after power-on Issue U-Boot does not produce any output on the ...
Alphin Thomas's user avatar
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1 answer
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I need to implement a program running outside the operating system on the same level as the BIOS, which will read all the UEFI firmware data from the BIOS chip, which memory addresses need to be read (...
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I'm running a Quartz64 (Model A) booting off an eMMC drive, and it recently suffered a file system corruption after a power outage due to a lightening strike.  After this, it wouldn't boot up.  I had ...
jyoung's user avatar
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I am trying to set up a development environment using QEMU to emulate a Zynq UltraScale+ MPSoC ZCU102. I have a Petalinux image that I am able to run with QEMU and now I want to pass in and mount file ...
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Some people recommend using flashrom to create backup dump of a PC's UEFI/BIOS SPI flash contents. However, flashrom does not work with all platforms. Sometimes people recommend finding the address ...
Melab's user avatar
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1 vote
2 answers
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Today I nuked an old usb3 flash 8GB drive on a linux machine with: dd if=/dev/random of=/dev/sdb then I put it into a windows pc, it asked me to format it, I did an extended format with default ...
user3450548's user avatar
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I am working on an embedded Linux system (5.10.24), where there is a NAND FLASH as storage. The NAND FLASH supports internal ECC and has 128Bytes OOB. Its DS says if the ECC is enabled the last ...
wangt13's user avatar
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1 answer
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I am working on an embedded Linux (kernel-5.24), where UBIFS is used as filesystem for both rootfs and user configuration data. Now I am trying to generate one single UBI image to burn the NAND FLASH (...
wangt13's user avatar
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Please explain how I am misunderstanding these two commands: root@DD-WRT:/tmp/var/log# cat /proc/mtd dev: size erasesize name mtd0: 00080000 00020000 "boot" mtd1: 00180000 00020000 &...
bobuhito's user avatar
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I think I broke my flash card programmatically while was playing with automount configuration. Now I can't mount my card anuwhere. Was this possible? And if it was, then how to ensure and fix?
Dims's user avatar
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I am working on an embedded Linux system, which uses kernel-5.10.24. There is a NAND FLASH used as storage in system, and it has 4 partitons. When the kernel boots up, there shows 4 partitions as ...
wangt13's user avatar
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I have a block device that I'm trying to erase using dd. Seems like all my portion has been deleted. However, dd command is returning No space left on device. Block device information is as follows, ...
randomUser's user avatar
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2 votes
1 answer
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I'm copying files to a USB 3.0 stick. The USB stick is plugged to a blue USB port. I'm copying 22 files of 1.5GB. When I do the copy (simple drag and drop), the copy dialog reports a speed of ~60MB/s, ...
jpo38's user avatar
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1 answer
6k views

I am working on an embedded Linux system (5.10.24), where there is a NAND FLASH as storage. The NAND FLASH is partitioned into 4 parts, part 0 is used for u-boot, part 1 is used for kernel, part 2 is ...
wangt13's user avatar
  • 651
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308 views

Assume that an SPI flash chip is represented as /dev/spidev. How do I enable that flash chip's power-cycle write protection?
Melab's user avatar
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