I've been having some trouble recently when trying to mount a SPI flash chip with the command: mount -t ext2 -r /dev/mtdblock4 /mnt/spi Resulting in the error: mount: mounting /dev/mtdblock4 on /mnt/spi failed: Invalid argument Running embedded Linux on an OMAP L138. We've recently upgraded our SPI NOR flash chips for a few prototype boards. Until recently we were using Winbond W25Q128 chips and moved to Micron N25Q256 chips due to space requirements, obsolescence, etc. I've already gone through UBoot and the Linux kernel, adding an array entry for the N25Q256 chip with size, ID, etc.
How do I write to SPI flash memory? If you are simply looking for a way to program the Winbond SPI flash with 'pre-loaded' data that your. Unix & Linux; Ask. #include linux/err.h> #include linux/errno.h> #include linux/module.h> #include. #include linux/spi/flash.h> #include linux/mtd/spi-nor.h> /* Define max. On Winbond W25Q256FV, leaving 4byte mode causes * the Extended Address.
Below is the startup printout which leads me to believe the chip is seen and setup correctly in /dev, leading me to believe I'm missing something more subtle. 1) Have you enabled 'ext2' filesystem support in kernel through 'make menuconfig'?
To check that whether the ext2 filesystem enabled or not cat /proc/filesystem Note: I hope you can't mount filesystem in 'ext2' or 'ext3' or 'ext4' format in SPI NOR flash and This 'extended filesystem (ext)' is applicable only for MMC/SD or eMMC devices only since 'mtdblock' is different partition. 2) Try to use 'jffs2' filesystem (please enable jffs2 fs support in kernel) 3) Please use 'flasheraseall /dev/mtd4' to erase the partition and then try to mount. Root@target:/# flasheraseall /dev/mtd4 root@target:/# mount -t jffs2 /dev/mtdblock4 /mnt.
In reply to: 1) After double checking I can confirm it is indeed enabled. It's also an almost identical kernel to the one for our 16MB Winbond flash products, with the only changes being adding SPI flash entries for the new manufacturer and chip size. 2) The command mount -t jffs2 -r /dev/mtdblock4 /mnt/spi/ Succeeds, and appears to mount properly based on the following output from mount: /dev/mtdblock4 on /mnt/spi type jffs2 (ro,relatime) 3) I have not yet attempted this as the flash.
commands are not currently included in our Linux filesystem. All content and materials on this site are provided 'as is'.
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IMPORTANT: At this point we recommend to not use flashrom on untested mobile devices unless you have a means to recover from a flashing that goes wrong (a working backup flash chip and/or good soldering skills). Total amount of known good mobile devices: 9; Untested (e.g. User vanished before testing new code): 1; Not yet supported (i.e. Known-bad): 15. Vendor Mainboard Required option Status Acer — OK Acer Aspire One — No ASUS A8Jm — OK ASUS — No ASUS M6Ne —?
ASUS U38N — OK Clevo — No Dell Latitude D630 — OK Dell Inspiron 1420 — OK Dell — No Dell Vostro 3700 — No Dell Latitude E6520 — No Elitegroup A928 — OK Fujitsu Amilo Xi 3650 — OK HP/Compaq EliteBook 8560p — No HP/Compaq — No HP/Compaq — No IBM/Lenovo — No IBM/Lenovo — No IBM/Lenovo — No IBM/Lenovo — No IBM/Lenovo — Dep IBM/Lenovo — No IBM/Lenovo — OK Teclast X98 Air 3G — OK 1. It seems the chip (25X40) is behind some SPI flash translation layer (likely in the EC, the ENE KB3310). Untested board enable.
Probing works (Macronix MX25L3205, 4096 kB, SPI), but parts of the flash are problematic: descriptor is r/o (conforming to ICH reqs), ME region is locked. The laptop immediately powers off if you try to hot-swap the chip. It's not yet tested if write/erase would work on this laptop. Locked ME, see 7.
Locked ME, see 8. Bootsector is locked and needs to be skipped with a layout file (writeable address range is 000bfff). SPI lock down, SMM protection, PR in BIOS region, read-only descriptor, locked ME region. Shuts down when probing for a chip.
Hangs upon 'flashrom -V' (needs hard power-cycle then). Probing works (Winbond W25X64, 8192 kB, SPI), but parts of the flash are problematic: descriptor is r/o (conforming to ICH reqs) and ME is locked. Also, a Protected Range is locking the top range of the BIOS region (presumably the boot block). Probing works (Macronix MX25L6405, 8192 kB, SPI), but parts of the flash are problematic: descriptor is r/o (conforming to ICH reqs) and ME is locked. Also, a Protected Range is locking the top range of the BIOS region (presumably the boot block). Probing works (ST M25PX64, 8192 kB, SPI), but parts of the flash are problematic: descriptor is r/o (conforming to ICH reqs) and ME is locked. Also, a Protected Range is locking the top range of the BIOS region (presumably the boot block).
Works fine but only with coreboot (due to locked regions and additional PR restrictions). Seems to (partially) work at first, but one block/sector cannot be written which then leaves you with a bricked laptop. Maybe this can be investigated and fixed in software later. PCI Devices Total amount of supported PCI devices flashrom can use as a programmer: 85 Programmer Vendor Device IDs Status nic3com 3COM 3C90xB: PCI 10/100 Mbps; shared 10BASE-T/100BASE-TX 10b7:9055 OK 3COM 3C90xB: PCI 10/100 Mbps; shared 10BASE-T/100BASE-T4 10b7:9001?
3COM 3C90xB: PCI 10BASE-T (TPO) 10b7:9004 OK 3COM 3C90xB: PCI 10BASE-T/10BASE2/AUI (COMBO) 10b7:9005? 3COM 3C90xB: PCI 10BASE-T/10BASE2 (TPC) 10b7:9006? 3COM 3C90xB: PCI 10BASE-FL 10b7:900a?
3COM 3C90xB: PCI 10BASE-FX 10b7:905a? 3COM 3C905B: Cyclone 10/100/BNC 10b7:9058 OK 3COM 3C905C: EtherLink 10/100 PCI (TX) 10b7:9200 OK 3COM 3C980C: EtherLink Server 10/100 PCI (TX) 10b7:9805? Nicrealtek Realtek RTL8139/8139C/8139C+ 10ec:8139 OK Realtek RTL8169 10ec:8169? SMC 1211TX 1113:1211 OK gfxnvidia NVIDIA Mutara V08 NV2 10de:0010? NVIDIA RIVA 128 10de:0018? NVIDIA RIVA TNT 10de:0020? NVIDIA RIVA TNT2/TNT2 Pro 10de:0028?
NVIDIA RIVA TNT2 Ultra 10de:0029? NVIDIA Vanta/Vanta LT 10de:002c? NVIDIA RIVA TNT2 Model 64/Model 64 Pro 10de:002d OK NVIDIA Aladdin TNT2 10de:00a0? NVIDIA GeForce 256 10de:0100? NVIDIA GeForce DDR 10de:0101? NVIDIA Quadro 10de:0103?
NVIDIA GeForce2 MX 10de:0110? NVIDIA GeForce2 MX 10de:0111? NVIDIA GeForce2 GO 10de:0112? NVIDIA Quadro2 MXR 10de:0113?
NVIDIA GeForce2 GTS/Pro 10de:0150? NVIDIA GeForce2 GTS 10de:0151? NVIDIA GeForce2 Ultra 10de:0152? NVIDIA Quadro2 Pro 10de:0153? NVIDIA GeForce 3 nFX 10de:0200?
![Spi flash programmer Spi flash programmer](/uploads/1/2/4/2/124217345/518263925.png)
NVIDIA GeForce 3 nFX 10de:0201? NVIDIA GeForce 3 nFX Ultra 10de:0202?
NVIDIA Quadro 3 DDC 10de:0203? Kaiser PC-Waechter (Actel FPGA) 1803:5057 OK satasii Silicon Image PCI0680 Ultra ATA-133 Host Ctrl 1095:0680 OK Silicon Image SiI 3112 SATALink/SATARaid SATA Ctrl 1095:3112 OK Silicon Image SiI 3114 SATALink/SATARaid SATA Ctrl 1095:3114 OK Silicon Image SiI 3124 PCI-X SATA Ctrl 1095:3124 OK Silicon Image SiI 3132 SATA Raid II Ctrl 1095:3132 OK Silicon Image SiI 3512 SATALink/SATARaid SATA Ctrl 1095:3512 OK atavia VIA VT6421A 1106:3249 Dep it8212 ITE 8212F PATA RAID 1283:8212? Nicintel Intel 8255xER/82551IT Fast Ethernet Controller 8086:1209? Intel 82557/8/9/0/1 Ethernet Pro 100 8086:1229 OK nicintelspi Intel 82571EB Gigabit Ethernet Controller 8086:105e OK Intel 82541GI Gigabit Ethernet Controller 8086:1076 OK Intel 82541PI Gigabit Ethernet Controller 8086:107c OK Intel 82572EI Gigabit Ethernet Controller 8086:10b9 OK Intel 82574L Gigabit Ethernet Controller 8086:10d3 OK Intel 82599 10 Gigabit Unprogrammed Network Controller 8086:10d8? Intel 82599 10 Gigabit KX4 Dual Port Network Controller 8086:10f7? Intel 82599 10 Gigabit Dual Port Backplane Controller 8086:10f8?
Intel 82599 10 Gigabit CX4 Dual Port Network Controller 8086:10f9? Intel 82599 10-Gigabit SFI/SFP+ Network Controller 8086:10fb? Intel 82599 10 Gigabit XAUI/BX4 Dual Port Network Controller 8086:10fc OK Intel 82599 10 Gigabit KR Network Controller 8086:1517? Intel 82599 10 Gigabit TN Network Controller 8086:151c? Intel 82599 10 Gigabit Dual Port Network Controller with FCoE 8086:1529? Intel 82599 10 Gigabit Dual Port Backplane Controller with FCoE 8086:152a? Intel 82599 10 Gigabit SFI Network Controller 8086:1557?
Intel I210 Gigabit Network Connection Unprogrammed 8086:1531 OK Intel I211 Gigabit Network Connection Unprogrammed 8086:1532? Intel I210 Gigabit Network Connection 8086:1533? Intel I210 Gigabit Network Connection SERDES Fiber 8086:1536? Intel I210 Gigabit Network Connection SERDES Backplane 8086:1537? Intel I210 Gigabit Network Connection SGMII 8086:1538? Intel I211 Gigabit Network Connection 8086:1539? Nicinteleeprom Intel 82580 Quad Gigabit Ethernet Controller (Copper) 8086:150e OK Intel 82580 Quad Gigabit Ethernet Controller (Fiber) 8086:150f?
Intel 82580 Quad Gigabit Ethernet Controller (Backplane) 8086:1510? Intel 82580 Quad Gigabit Ethernet Controller (Ext. PHY) 8086:1511? Intel 82580 Dual Gigabit Ethernet Controller (Copper) 8086:1511? Intel Unprogrammed 82580 Quad/Dual Gigabit Ethernet Controller 8086:1509 OK Intel I210 Gigabit Network Connection Unprogrammed 8086:1531? Intel I211 Gigabit Network Connection Unprogrammed 8086:1532?
Intel I210 Gigabit Network Connection 8086:1533 OK Intel I210 Gigabit Network Connection SERDES Fiber 8086:1536? Intel I210 Gigabit Network Connection SERDES Backplane 8086:1537?
Intel I210 Gigabit Network Connection SGMII 8086:1538? Intel I211 Gigabit Network Connection 8086:1539?