Message ID | 1434702383-7305-1-git-send-email-judge.packham@gmail.com |
---|---|
State | Accepted |
Delegated to: | Tom Rini |
Headers | show |
On Fri, Jun 19, 2015 at 08:25:59PM +1200, Chris Packham wrote: > Unlike most configuration options defining this actually disables > support for a feature (parallel flash). Eventually the logic behind this > should probably be flipped so that '#ifndef CONFIG_SYS_NO_FLASH' becomes > '#ifdef CONFIG_HAS_PARALLEL_FLASH' but for now lets document the > existing behaviour. > > Signed-off-by: Chris Packham <judge.packham@gmail.com> > Reviewed-by: Stefan Roese <sr@denx.de> Applied to u-boot/master, thanks!
diff --git a/README b/README index 3b406c2..c3fa549 100644 --- a/README +++ b/README @@ -3037,6 +3037,19 @@ CBFS (Coreboot Filesystem) support this is instead controlled by the value of /config/load-environment. +- Parallel Flash support: + CONFIG_SYS_NO_FLASH + + Traditionally U-boot was run on systems with parallel NOR + flash. This option is used to disable support for parallel NOR + flash. This option should be defined if the board does not have + parallel flash. + + If this option is not defined one of the generic flash drivers + (e.g. CONFIG_FLASH_CFI_DRIVER or CONFIG_ST_SMI) must be + selected or the board must provide an implementation of the + flash API (see include/flash.h). + - DataFlash Support: CONFIG_HAS_DATAFLASH