Some targets need 4K sectors for small flash chips (e.g. some
routerboards, where the entire chip is just one "erase block"), whereas
on other devices 4K sectors lead to horrible flash erase/write
performance.
Set the default limit in the generic kernel configuration to 4 MiB to
ensure that all new platforms don't use 4K sectors for bigger flash
chips. On all existing targets use 16 MiB for now to avoid regressions.
They will be changed individually in follow-up commits.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
CONFIG_SG_POOL symbol is selected only by CONFIG_SCSI, since the last
one is disabled by default then disable CONFIG_SG_POOL by default too.
And explicitly enable it only for platforms that use CONFIG_SCSI.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
This adds kernel support for the Pistachio SoC and the Marduk (Ci40)
board which uses it.
Much of the code for Pistachio has been upstreamed however some
patches are still required to boot from the Marduk board:
* spi bug fixes
* dma bug fixes
* pistachio internal clock tree bug fixes
* spi-nand implementation
* dts based mtd device naming scheme
* dts backports and bug fixes
Signed-off-by: Abhijit Mahajani <Abhijit.Mahajani@imgtec.com>
Signed-off-by: Francois Berder <francois.berder@imgtec.com>
Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com>
