X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2FREADME.pxe;h=f00f280fe65879106193a9f395659621785c72e8;hb=df637fa6da6e0f6b1d14d84f1afdd729bc2e2d1a;hp=95cd9b90dead2a0c2e6fca95a7cbd4d3e1bcfd52;hpb=bfcc40bb09b05c90cc3b1496abb270eb8aa72134;p=u-boot

diff --git a/doc/README.pxe b/doc/README.pxe
index 95cd9b90de..f00f280fe6 100644
--- a/doc/README.pxe
+++ b/doc/README.pxe
@@ -93,8 +93,13 @@ pxe boot
      be passed to the bootm command to boot the kernel. These environment
      variables are required to be set.
 
-     fdt_addr - the location of a fdt blob. If this is set, it will be passed
-     to bootm when booting a kernel.
+     fdt_addr_r - location in RAM at which 'pxe boot' will store the fdt blob it
+     retrieves from tftp. The retrieval is possible if 'fdt' label is defined in
+     pxe file and 'fdt_addr_r' is set. If retrieval is possible, 'fdt_addr_r'
+     will be passed to bootm command to boot the kernel.
+
+     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.
 
 pxe file format
 ===============
@@ -156,6 +161,11 @@ initrd <path>	    - if this label is chosen, use tftp to retrieve the initrd
 		      the initrd_addr_r environment variable, and that address
 		      will be passed to bootm.
 
+fdt <path>	    - if this label is chosen, use tftp to retrieve the fdt blob
+		      at <path>. it will be stored at the address indicated in
+		      the fdt_addr_r environment variable, and that address will
+		      be passed to bootm.
+
 localboot <flag>    - Run the command defined by "localcmd" in the environment.
 		      <flag> is ignored and is only here to match the syntax of
 		      PXELINUX config files.
@@ -224,9 +234,6 @@ PXELINUX and U-boot's pxe support.
 - U-boot's pxe expects U-boot uimg's as kernels.  Anything that would work
   with the 'bootm' command in U-boot could work with the 'pxe boot' command.
 
-- U-boot's pxe doesn't recognize initrd options in the append command - you
-  must specify initrd files using the initrd command.
-
 - U-boot's pxe only recognizes a single file on the initrd command line.  It
   could be extended to support multiple.