km/common: simplify debug environment
The debug environment which is stored in textfiles in the
scripts directory was reworked. Two usecase are now present
which can be executed simply from the default environment:
run develop: this configures the environment to setup the
rootfs via nfs
run ramfs: this configures the environment to setup the
rootfs in ram
Each architecture now has a "arch" variable which is used
to load the architecture specific debug scripts and to set
the rootpath for NFS.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
diff --git a/board/keymile/scripts/README b/board/keymile/scripts/README
index 86c2b5a..7fbcf74 100644
--- a/board/keymile/scripts/README
+++ b/board/keymile/scripts/README
@@ -1,23 +1,31 @@
-debug-common-env.txt
-============================
-This file defines environment variables which are valid for powerpc boards
-and for arm boards.
+These scripts are needed for our development usecases. Copy this directory
+into your tftp root directory to be able to use this scripts.
+cp -r <u-boot-repo>/board/keymile/scripts <your_tftp_root>/
-addramfs: add phram device for the rootfilesysten in ram
-develop: for development, laod kernel via tftp and mount rootfs via NFS
-nfsargs: default arguments for nfs boot
-ramfs: load rootfilesystem in RAM kernel
-rootfsfile: loacation of the rootfs file for ramfs
-setramfspram: compute PRAM size for ramfs target
-setrootfsaddr: compute rootfilesystem address for phram
-tftpkernel: load a kernel with tftp into ram
-tftpramfs: load rootfs with tftp into ram
+To load and configure these usecase, two environment variables in the u-boot
+default environment must be parsed:
+run develop : setup environment to configure for rootfs via nfs
+run ramfs : setup environment to configure for rootfs in ram
-debug-ppc-env.txt
-============================
-fdt_file: location of the dtb file on the tftp server
-tftpfdt: load dtb file and set fdt address
+Last change: 20.05.2011
-debug-arm-env.txt
+develop-common.txt
============================
-tftpfdt: for arm only a dummy variable, because we have no fdt on arm
+This file defines variables for working with rootfs via nfs for powerpc and
+arm.
+
+develop-<arch>.txt
+============================
+This file defines architecture specific variables for working with rootfs via
+nfs arm.
+
+
+ramfs-common.txt
+============================
+This file defines variables for working with rootfs inside the ram for powerpc
+and arm.
+
+ramfs-<arch>.txt
+============================
+This file defines architecture specific variables for working with rootfs inside
+ram.