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| author | Robert Nelson <robertcnelson@gmail.com> | 2023-02-14 16:35:27 -0600 |
|---|---|---|
| committer | Han Gao <gaohan@iscas.ac.cn> | 2023-10-20 13:38:37 +0800 |
| commit | 798af1f1c595fb395cba8864b0c8b450d38e0d15 (patch) | |
| tree | e9a24d51fe4a8da7ea73f0b895c0f61895da86d1 /doc | |
| parent | cccf006cae8e64b9c499ea3cd498604e9ae35172 (diff) | |
backport of: [PATCH] cmd: pxe: add support for FDT overlays
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.pxe | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/README.pxe b/doc/README.pxe index 42f913c6..b67151ca 100644 --- a/doc/README.pxe +++ b/doc/README.pxe @@ -89,6 +89,9 @@ pxe boot fdt_addr - the location of a fdt blob. 'fdt_addr' will be passed to bootm command if it is set and 'fdt_addr_r' is not passed to bootm command. + fdtoverlay_addr_r - location in RAM at which 'pxe boot' will temporarily store + fdt overlay(s) before applying them to the fdt blob stored at 'fdt_addr_r'. + pxe file format =============== The pxe file format is nearly a subset of the PXELINUX file format; see @@ -148,6 +151,12 @@ kernel <path> - if this label is chosen, use tftp to retrieve the kernel It useful for overlay selection in pxe file (see: doc/uImage.FIT/overlay-fdt-boot.txt) +fdtoverlays <path> [...] - if this label is chosen, use tftp to retrieve the DT + overlay(s) at <path>. it will be temporarily stored at the + address indicated in the fdtoverlay_addr_r environment variable, + and then applied in the load order to the fdt blob stored at the + address indicated in the fdt_addr_r environment variable. + append <string> - use <string> as the kernel command line when booting this label. |