Hi Kever, On Fri, Dec 27, 2019 at 3:33 PM Kever Yang <kever.yang@xxxxxxxxxxxxxx> wrote: > > > On 2019/12/27 下午2:50, Jagan Teki wrote: > > Hi Kever, > > > > On Mon, Dec 23, 2019 at 8:04 AM Kever Yang <kever.yang@xxxxxxxxxxxxxx> wrote: > >> Jagan, > >> > >> > >> On 2019/12/21 下午3:54, Jagan Teki wrote: > >>> Most of the SPI flash devices in rockchip are 16MiB size. > >>> > >>> So, keeping U-Boot proper offset start from 128MiB with 1MiB > >>> size and then start env of 8KiB would be a compatible location > >>> between all variants of flash sizes. > >>> > >>> This patch add env start from 0x14000 with a size of 8KiB. > >> What's the space map in SPI flash suppose to be? Including > >> tpl/spl/u-boot.itb > >> > >> I would prefer to use 128KiB-8KiB as the env start address, we'd better > >> to avoid the > >> > >> risk of overlap between the env space and the firmware space. > > Here is the 16MiB flash layout, I have used. I can see the loader1 > > (tpl/spl) can be possible to load at 0x0 or 0x32K so I have given the > > space for it. and 8K env after loader2(u-boot). let me know your > > thoughts? > > > > 0x0 - 0x8000, 32K => reserved/loader1 > > 0x8000 - 0x40000, 224K => loader1 > > 0x40000 - 0x140000, 1M => loader2 > > 0x140000 - 0x142000, 8K => env > > 0x142000 - 0x842000, 7M => kernel > > 0x842000 - 0x853800, 100K => dtb > > spi NOR need 4KB as erase size, so this may need update , other item > looks ok. Correct, but this indeed doesn't effect env offset and size. May be I can document it for future reference. _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
