Hi all,

I'm trying to get flash programming to work in the u-boot monitor on our custom boards. Reading the flash (i.e, booting :-) works, and once in Linux the flash can be programmed too using mtd-tools.

But when I try to erase in u-boot, I get erase errors:

Flash erase error at address ffd80000 Block Erase Error.

(a more detailed log is included below).

I use U-Boot 1.2.0 and the standard CFI driver with buffered writes.

This is what flinfo and Linux MTD report:

Bank # 1: CFI conformant FLASH (32 x 16) Size: 64 MB in 259 Sectors Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x19 Erase timeout: 4096 ms, write timeout: 1 ms Buffer write timeout: 2 ms, buffer size: 64 bytes

physmap platform flash device: 04000000 at fc000000 physmap-flash.0: Found 2 x16 devices at 0x0 in 32-bit bank

[We use two Intel P30 StrataFlash chips of 256Mbit in parallel (2 x16-bit words make a 32-bit bank), for a total of 64 MB].

All reported parameters look OK to me (port width, chip width, size, #sectors, ...)

I've noticed that for these 28F256P30 flash chips, there has been a patch in the past which corrected the manufacturer, but that doesn't seem relevant for the CFI driver. (http://permalink.gmane.org/gmane.comp.boot-loaders.u-boot/28709)

FYI, I checked the value of flash_info_t->interface, and it's detected as FLASH_CFI_X16.

Is there something specific that I need to configure? All I'm using right now is CFG_FLASH_CFI CFG_FLASH_CFI_DRIVER CFG_FLASH_USER_BUFFER_WRITE CFG_FLASH_EMPTY_INFO

(Disabling buffered write does not solve the issue.)

Please let me know if you have any suggestions.

regards Floris

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Here are the longer logs:

=> flinfo

Bank # 1: CFI conformant FLASH (32 x 16) Size: 64 MB in 259 Sectors Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x19 Erase timeout: 4096 ms, write timeout: 1 ms Buffer write timeout: 2 ms, buffer size: 64 bytes

Sector Start Addresses: FC000000 RO FC040000 RO FC080000 RO FC0C0000 RO FC100000 RO (...) FFD40000 RO FFD80000 RO FFDC0000 RO FFE00000 RO FFE40000 E RO FFE80000 E RO FFEC0000 E RO FFF00000 RO FFF40000 E RO FFF80000 E RO FFFC0000 E RO FFFD0000 E RO FFFE0000 E RO FFFF0000 RO

=> protect off ffd80000 ffdbffff

Un-Protected 1 sectors

=> erase ffd80000 ffdbffff

Flash erase error at address ffd80000 Block Erase Error. Block locked. done Erased 1 sectors

=> protect on ffd80000 ffdbffff

Protected 1 sectors

=> flinfo

Bank # 1: CFI conformant FLASH (32 x 16) Size: 64 MB in 259 Sectors Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x19 Erase timeout: 4096 ms, write timeout: 1 ms Buffer write timeout: 2 ms, buffer size: 64 bytes

Sector Start Addresses: (...) FFD40000 RO FFD80000 RO FFDC0000 RO FFE00000 RO FFE40000 E RO (...)

physmap platform flash device: 04000000 at fc000000 physmap-flash.0: Found 2 x16 devices at 0x0 in 32-bit bank Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Using buffer write method cfi_cmdset_0001: Erase suspend on write enabled