Reeve Yang wrote:
I'm a little confused by flash driver selection in u-boot. My flash device is intel JS28F128J3, I assume it's not CFI flash so I want to use
Intel 28F128J3 is a CFI compliant flash chip.
strataflash.c. I added such file under my board directory, add it into Makefile, and undef CFG_FLASH_CFI_DRIVER, but I got link error. If
strataflash.c driver is a pre-cursor to common cfi_flash.c. Most boards are reworked to use the cfi_flash.c. To use strataflash.c you also had to define CFG_FLASH_CFI_DRIVER (as far as my memory serves). There is no reason to use a custom flash driver nowadays unless your flash is interfaced to the processor bus in a very unusual way (like data bus scrambled -- hardware design bugs)
define this macro, the compilation is ok and my flash works. My question is, if we define this macro, which flash driver being used? cfi_flash.c or my strataflash.c?
Use cfi_flash.c
Tolunay