install: hi3516ev300 on the split NOR layout, split-only

CLAUDE.md

@@ -174,8 +174,8 @@ Backends: `spi_flash.c` (fmc100), `spi_flash_hisfc350.c` (V1-era parts),
   env, rest ubi), whose mtdparts/bootcmd/bootargs come from the U-Boot default
   env; `NAND_LAYOUT` is the legacy split layout for other chips. The
   `NOR_SPLIT_SOCS` (gk7205v200 family, hi3516cv6xx, hi3519dv500,
-  hi3516cv300/ev100, hi3516ev200/hi3518ev300/hi3516dv200 but not
-  hi3516ev300; keyed by
+  hi3516cv300/ev100, the hi3516ev200 family -- hi3516ev300 split-only;
+  keyed by
   package board, `FIRMWARE_PACKAGE_BOARD` maps cv608/cv610/cv613 to
   `hi3516cv6xx` and hi3516dv500 to `hi3519dv500`) install the split NOR
   package: one `firmware.bin.<board>` where the boot area ends (0x50000;

README.md

@@ -58,7 +58,7 @@ Flash a complete OpenIPC release (U-Boot + kernel + rootfs) in one command:
 
 ```bash
 defib install -c hi3516ev300 \
-  --firmware openipc.hi3516ev300-nor-lite.tgz \
+  --firmware openipc.hi3516ev300-nor-lite-split.tgz \
   -p /dev/uart-IVG85HG50PYA-S \
   --power-cycle --nor-size 8
 ```
@@ -69,15 +69,18 @@ The install command orchestrates the entire process:
 3. Reaches an OpenIPC U-Boot shell through boot ROM or a registered stock-U-Boot bootstrap
 4. Detects the flash and selects the standard OpenIPC layout
 5. Starts a multi-file TFTP server and configures U-Boot networking
-6. Flashes each partition (U-Boot, kernel, rootfs) with CRC32 verification
+6. Flashes U-Boot and the firmware with CRC32 verification: the kernel and
+   rootfs into fixed slots, or, from a `-split.tgz` package, one `firmware.bin`
+   where the boot area ends (0x50000), which the kernel divides at boot
 7. Saves the boot environment and resets
 
 Requires root for TFTP port 69 and NIC IP assignment. Standard 8/16/32 MiB
 NOR layouts are selected from U-Boot flash detection; `--nor-size` remains an
 explicit override.
 
-hi3516ev200, hi3516ev300, hi3518ev300, hi3516dv200 and gk7205v500/v510/v530
-take their U-Boot from OpenIPC/u-boot-xmedia, published once per flash type as
+hi3516ev200, hi3516ev300, hi3518ev300, hi3516dv200, gk7205v500/v510/v530, the
+gk7205v200 family and hi3516cv300/ev100 take their U-Boot from OpenIPC/u-boot,
+published once per flash type as
 `u-boot-<chip>-nor.bin` and `u-boot-<chip>-nand.bin`. `install` picks the build
 from `--nand`; `burn` loads the NOR build unless `--nand` is given. On NAND
 these SoCs use a UBI-only layout:

src/defib/firmware.py

@@ -87,9 +87,10 @@
     "gk7202v300", "gk7205v200", "gk7205v300", "gk7605v100",
     "hi3516cv6xx", "hi3519dv500",
     "hi3516cv300", "hi3516ev100",
-    # Not hi3516ev300: its kernel fills the 2 MiB slot, so its firmware
-    # ships fixed slots only.
     "hi3516ev200", "hi3518ev300", "hi3516dv200",
+    # Split-only, like hi3516cv6xx: its kernel fills the 2 MiB slot, so no
+    # fixed-slot package can ship beside the split one.
+    "hi3516ev300",
 })
 
 # NOR boot area -- (boot partition size, env partition size) -- where it is

tests/test_install_nor_split.py

@@ -288,13 +288,13 @@ async def test_split_image_too_big_for_the_chip(monkeypatch, tmp_path):
 
 @pytest.mark.asyncio
 @pytest.mark.parametrize("kwargs, code", [
-    ({"chip": "hi3516ev300"}, 2),
+    ({"chip": "hi3518ev200"}, 2),
     # NAND here is the UBI layout, whose package loader names the mistake.
     ({"nand": True}, 1),
     ({"wipe_rootfs_data": True, "stages": ("rootfs-data",)}, 2),
 ])
 async def test_split_install_refusals(monkeypatch, tmp_path, capsys, kwargs, code):
-    board = "hi3516ev300" if kwargs.get("chip") == "hi3516ev300" else "gk7205v200"
+    board = "hi3518ev200" if kwargs.get("chip") == "hi3518ev200" else "gk7205v200"
     firmware = _split_package(tmp_path / "fw.tgz", board=board)
     with pytest.raises(typer.Exit) as exc:
         await _install(monkeypatch, tmp_path, firmware, **kwargs)
@@ -357,7 +357,8 @@ def test_package_board_and_boot_area_are_data():
                  "hi3516ev200", "hi3518ev300", "hi3516dv200"):
         assert supports_nor_split(chip), chip
     assert nor_boot_area("hi3516cv300") == (0x40000, 0x10000)
-    assert not supports_nor_split("hi3516ev300")
+    assert supports_nor_split("hi3516ev300")
+    assert not supports_nor_split("hi3516cv500")
 
     assert nor_boot_area("hi3516cv610") == (0x40000, 0x10000)
     assert nor_boot_area("hi3516dv500") == (0x80000, 0x40000)