Hey Mike,
Mike Frysinger wrote:
On Wednesday 23 January 2008, Wolfgang Denk wrote:
In message 200801231729.18316.vapier@gentoo.org you wrote:
with eeprom_info behind CONFIG_SPI. most SPI flashes nowadays support the jedec id command which allows for dynamic detection (which is how the Blackfin SPI driver that i wrote works). hook up any SPI flash and it "just works".
I think you are doing something wrong when you try to use "eeprom" to access "SPI flash" - these are differnt entities...
then what is the "correct" method ? i dont see any other usable option in u-boot for hooking up SPI flashes without writing my own subsystem. -mike
Until recently SPI in U-boot was synonymous with 'SPI-based EEPROM'. In fact, CONFIG_SPI doesn't mean 'configure support for a SPI controller', it means 'configure support for a SPI EEPROM'. This is of course yet another artifact from another day that it would be nice to clean up.
I introduced CONFIG_HARD_SPI in the latest release cycle, and included a driver for a Freescale controller. It would be nice to have other drivers added for generic SPI support. My preference would be for you to expand the 'spi' command with something like:
'spi eeprom info'
regards, Ben