diff options
| author | Sam Protsenko <[email protected]> | 2025-11-18 15:00:55 -0600 |
|---|---|---|
| committer | Heinrich Schuchardt <[email protected]> | 2025-11-21 19:26:52 +0100 |
| commit | a5dc935df7d0e5df4072521ba23279d07bbadcb5 (patch) | |
| tree | 3fdd5946b980e6a8086085b3b61ee127a56eb1fe | |
| parent | b0be86bbf8b3909727aab505a23cdbf0886c5dd7 (diff) | |
doc: samsung: Fix PXE doc for E850-96 board
As stated in PXELINUX doc [1], the PXE configuration file has to be in
the format of "01-MAC-address" for Ethernet connections:
The hardware type (using its ARP "htype" code) and address, all in
lowercase hexadecimal with dash separators. For example, for an
Ethernet (i.e. ARP hardware type "1") with address
"88:99:AA:BB:CC:DD", it would search for the filename
"01-88-99-aa-bb-cc-dd".
Indeed, PXE implementation in U-Boot looks for files like that, as can
be seen from this call chain:
format_mac_pxe()
pxe_mac_path()
pxe_get()
extlinux_pxe_read_bootflow()
Mention the fact that PXE expects the configuration file to be prepended
with "01" in the PXE section of E850-96 documentation. While at it, fix
some other minor issues in PXE section.
[1] https://wiki.syslinux.org/wiki/index.php?title=PXELINUX
Signed-off-by: Sam Protsenko <[email protected]>
| -rw-r--r-- | doc/board/samsung/e850-96.rst | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/doc/board/samsung/e850-96.rst b/doc/board/samsung/e850-96.rst index 2b66e6568fb..3174a7daff9 100644 --- a/doc/board/samsung/e850-96.rst +++ b/doc/board/samsung/e850-96.rst @@ -637,9 +637,14 @@ machine: `-- pxelinux.cfg `-- 01-02-36-f5-1c-81-13 - where ``'01-02-36-f5-1c-81-13'`` file contains extlinux configuration for - TFTP to load and boot. The name of this file is the Ethernet MAC address, - which can be looked up in the ``$ethaddr`` environment variable in U-Boot. + where ``'01-02-36-f5-1c-81-13'`` file contains extlinux configuration for TFTP + to load and boot. The name of this file has to be in the format of + ``'01-MAC-address'``. The Ethernet MAC address in this case is + ``02-36-f5-1c-81-13``, and it can be looked up in the ``$ethaddr`` environment + variable in U-Boot:: + + => env print ethaddr + ethaddr=02:36:f5:1c:81:13 An example of such configuration file is:: @@ -667,11 +672,11 @@ machine: arch/arm64/configs/defconfig ---------------------------- - # Needed for boot from USB storage (mounting rootfs from USB drive) + # Keep USB PHY driver built-in, as the Ethernet controller sits on USB bus CONFIG_PHY_EXYNOS5_USBDRD=y CONFIG_TYPEC=y - # Needed for NFS boot + # Keep Ethernet driver built-in CONFIG_USB_NET_SMSC95XX=y CONFIG_USB_USBNET=y |