ppc: Remove xpedite boards

[platform/kernel/u-boot.git] / doc / README.pxe

diff --git a/doc/README.pxe b/doc/README.pxe
index db11658..b67151c 100644 (file)
--- a/doc/README.pxe
+++ b/doc/README.pxe
@@ -1,7 +1,6 @@
+SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010-2011 Calxeda, Inc.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 The 'pxe' commands provide a near subset of the functionality provided by
@@ -90,6 +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
@@ -141,6 +143,19 @@ kernel <path>          - if this label is chosen, use tftp to retrieve the kernel
                      (or FIT image) at <path>. it will be stored at the address
                      indicated in the kernel_addr_r environment variable, and
                      that address will be passed to bootm to boot this kernel.
+                     For FIT image, The configuration specification can be
+                     appended to the file name, with the format:
+                       <path>#<conf>[#<extra-conf[#...]]
+                     It will passed to bootm with that address.
+                     (see: doc/uImage.FIT/command_syntax_extensions.txt)
+                     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.