| Message ID | 1433930781-5358-1-git-send-email-judge.packham@gmail.com |
|---|---|
| State | Superseded |
| Delegated to: | Tom Rini |
| Headers | show |
On 10.06.2015 12:06, 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' Yes, this should be the ultimate goal. But definitely a quite complex task. > but for now lets document the > existing behaviour. Ack. > Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Thanks, Stefan
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
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> --- So this is my attempt to describe (my understanding of) how this option should be used. Any suggestions for improvement are most welcome. README | 13 +++++++++++++ 1 file changed, 13 insertions(+)