Hi, thanks! Thanks, Arseniy
On 22.08.2024 00:17, Michael Nazzareno Trimarchi wrote: > Hi > > I will read them tomorrow ;) > > Thank you for understanding > > Michael > > Il mer 21 ago 2024, 22:25 Arseniy Krasnov <avkras...@salutedevices.com> ha > scritto: > >> Hi, sorry, pls ping 😄 >> >> Thanks >> >> On 08.07.2024 10:13, Arseniy Krasnov wrote: >>> Patchset is based on patchset for Linux (today merged to nand-next): >>> >> https://lore.kernel.org/linux-mtd/20240507230903.3399594-1-avkras...@salutedevices.com/ >>> >>> Here is description from it: >>> >>> > Amlogic's boot ROM code needs that some pages on NAND must be written >>> > in special "short" ECC mode with scrambling enabled. Such pages: >>> > 1) Contain some metadata about hardware. >>> > 2) Located with some interval starting from 0 offset, until some >>> > specified offset. Interval and second offset are set in the >>> > device tree. >>> > >>> > This patchset adds R/W support for such pages. To enable it we can >> setup >>> > it in dts: >>> > >>> > nand-is-boot-medium; >>> > amlogic,boot-pages = <1024>; >>> > amlogic,boot-page-step = <128>; >>> > >>> > It means that each 128th page in range 0 to 1024 pages will be >> accessed >>> > in special mode ("short" ECC + scrambling). In practice this feature >> is >>> > needed when we want to update first block of NAND - driver will >> enable >>> > required mode by itself using value from device tree. >>> >>> The only difference is that patchset for Linux updates DT bindings, while >>> this adds NAND_IS_BOOT_MEDIUM flag support. >>> >>> Changelog: >>> v1 -> v2: >>> * Pls see per-patch changelog. >>> >>> Arseniy Krasnov (3): >>> mtd: rawnand: nand_base: support for 'NAND_IS_BOOT_MEDIUM' flag >>> mtd: rawnand: meson: refactor use of 'meson_nfc_cmd_access()' >>> mtd: rawnand: meson: read/write access for boot ROM pages >>> >>> drivers/mtd/nand/raw/meson_nand.c | 84 +++++++++++++++++++++---------- >>> drivers/mtd/nand/raw/nand_base.c | 3 ++ >>> include/linux/mtd/rawnand.h | 5 ++ >>> 3 files changed, 65 insertions(+), 27 deletions(-) >>> >> >
