The amount of duplication across SPI flash driver has always annoyed me, and we've seen bugs that affect multiple drivers fixed in only some, and I figure if the Linux kernel driver can unify these things, then there is really no reason we can't too.
So this here are a few incremental patches to get us closer to a unified driver. I think the diffstat speaks for itself, and there are even more pieces here which could possibly be merged. But I got bored for now.
I've only lightly tested them so far with one SPI flash driver, so for now they're not for merging. Once I can get more testing on our side, I'll send out a pull request.
For you adventurous/bored types, you can grab these from my sf branch: git://git.denx.de/u-boot-blackfin.git Any feedback as to success/failure would be great.
Mike Frysinger (4): sf: unify read/write helpers sf: unify status polling for ready bit sf: unify erase functions sf: unify read functions
drivers/mtd/spi/atmel.c | 49 +--------- drivers/mtd/spi/eon.c | 121 ++----------------------- drivers/mtd/spi/macronix.c | 126 ++------------------------ drivers/mtd/spi/spansion.c | 120 +----------------------- drivers/mtd/spi/spi_flash.c | 170 +++++++++++++++++++++++++--------- drivers/mtd/spi/spi_flash_internal.h | 23 +++++ drivers/mtd/spi/sst.c | 116 +---------------------- drivers/mtd/spi/stmicro.c | 125 +------------------------ drivers/mtd/spi/winbond.c | 148 +---------------------------- 9 files changed, 190 insertions(+), 808 deletions(-)