goke: add GK7205V500 ultimate NAND (UBI) board#2200
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Add gk7205v500_ultimate_defconfig targeting 128 MB SPI-NAND (GigaDevice GD5F1GM7UEYIG: 2 KB page / 128 KB erase block, SLC). Layout follows OpenIPC's standard UBI scheme: read-only ubifs `rootfs` volume + autoresize `rootfs_data` overlay volume, mounted by general/overlay/init. Reuses the proven NAND geometry knobs (BR2_TARGET_ROOTFS_UBI_SUBSIZE=2048, UBIFS_LEBSIZE=0x1f000) which match the GD5F1GM7 page/block sizes; ubinize emits -m 0x800 -p 0x20000 -s 2048 as expected. Ultimate package set modeled on gk7205v300_ultimate, keeping the v500-specific GOKE_OSDRV_GK7205V500 and PTZ GPIO stepper packages. HISILICON_OPENSDK left disabled (no mkp_isp.h for the v500 family, matching gk7205v500_lite). Kernel: enable CONFIG_UBIFS_FS (+LZO/ZLIB) in gk7205v500.generic.config so the rootfs_data overlay can mount as ubifs (driver/UBI/MTD-SPI-NAND were already enabled). Built locally: rootfs.ubi 13056KB/16384KB, uImage 1931KB/4096KB. Pair with u-boot-gk7205v500-nand.bin from the OpenIPC/firmware release assets. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Adds
gk7205v500_ultimate_defconfigfor the 128 MB SPI-NAND variant of the GK7205V500, using OpenIPC's standard UBI layout.Target flash on the lab cameras: GigaDevice GD5F1GM7UEYIG SPI-NAND — JEDEC
0xC8 0x91, 1 Gbit / 128 MiB SLC, 2 KB page, 128 KB erase block, 128 B OOB, on-die 24-bit/1K ECC.Layout (Option B — UBI)
bootbootenvkernelubirootfs(ubifs, ro) +rootfs_data(ubifs, autoresize)Follows the existing OpenIPC UBI convention (
hi3518ev300_ultimateet al.): read-onlyrootfsvolume + autoresizerootfs_dataoverlay, mounted bygeneral/overlay/init. Partition nameskernel/rootfs/rootfs_dataare the load-bearing contract used byinitandsysupgrade.Changes
br-ext-chip-goke/configs/gk7205v500_ultimate_defconfigBR2_TARGET_ROOTFS_UBIwithSUBSIZE=2048/UBIFS_LEBSIZE=0x1f000— match the GD5F1GM7 page/block geometry. ubinize emits-m 0x800 -p 0x20000 -s 2048as expected.gk7205v300_ultimate, retaining the v500-specificGOKE_OSDRV_GK7205V500and the PTZ GPIO stepper packages.HISILICON_OPENSDKleft disabled — that SDK has nomkp_isp.hfor the v500 family (matchesgk7205v500_lite); enabling it breaks the build.gk7205v500.generic.config: enableCONFIG_UBIFS_FS(+LZO/ZLIB) so therootfs_dataoverlay can mount as ubifs. The XMedia FMC100 SPI-NAND driver,MTD_UBI,MTD_UBI_BLOCK, andMTD_CMDLINE_PARTSwere already enabled.Build / test
Built locally on this branch (toolchain + kernel from GitHub release assets):
rootfs.ubi: 13056KB / 16384KBuImage: 1931KB / 4096KBopenipc.gk7205v500-nand-ultimate.tgz.Pair with
u-boot-gk7205v500-nand.binfrom theOpenIPC/firmwarerelease assets. Not yet flash-validated on hardware — QEMU/board bring-up to follow.🤖 Generated with Claude Code