Added initial stuff to build uboot files for efikamx devices, and the platform to...

diff --git a/Makefile b/Makefile
index cd14348ff92f31945e93e0bc20ba5f4ed61d4422..a851b918b2f9d6268461b4411e69a6e86b4baa35 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -7,13 +7,22 @@ WORK = $(PWD)/work
 
 UBOOT_VERSION = 2011.09
 
-.PHONY: all mkimage clean dist-clean
+.PHONY: all help mkimage clean dist-clean efikamx efikamx-clean efikamx-distclean
 
-all: mkimage
+all: help
 
-clean: mkimage-clean
+help:
+       @echo "Usage: make <target>"
+       @echo "Where targets available are:"
+       @echo "  mkimage       Build mkimage binary for your host"
+       @echo "  <device>      Where device specified should appear under"
+       @echo "                devices's dir as for example efikamx, wm8505, ..."
+       @echo "  clean         Remove generated files"
+       @echo "  distclean     Remove generated files and temporary sources"
 
-dist-clean: mkimage-distclean
+clean: mkimage-clean efikamx-clean
+
+distclean: mkimage-distclean efikamx-distclean
 
 
 $(WORK)/u-boot-$(UBOOT_VERSION).tar.bz2:
@@ -38,3 +47,15 @@ mkimage-clean:
        rm -f $(WORK)/mkimage mkimage
 
 mkimage-distclean: mkimage-clean
+       rm -rf $(WORK)/u-boot-$(UBOOT_VERSION) $(WORK)/u-boot-$(UBOOT_VERSION).tar.bz2
+
+efikamx: mkimage
+       make -C devices/efikamx
+
+efikamx-clean:
+       make -C devices/efikamx clean
+
+efikamx-distclean:
+       make -C devices/efikamx distclean
+
+# End of file

diff --git a/README b/README
index d34c6f12ab1a24658f44c91ebb6946ab6a40fbf9..eeb58ff822e515461651df1ea1c39391bb9daa8e 100644 (file)
--- a/README
+++ b/README
@@ -1,3 +1,20 @@
 
 README for uboot
 
+       Das U-Boot (or just "U-Boot" for short) is Open Source Firmware for
+       Embedded Power Architecture®, ARM, MIPS, x86 and other processors.
+
+       CRUX-ARM uses U-Boot as default bootloader for some devices, like
+       efikamx, wm8505, and maybe more in the future.
+
+       In this repository you'll find all required to convert kernel images
+       from zImage format to uImage, which used by U-Boot. To do that you
+       need to use mkimage, which can be built with the Makefile provided.
+        It's important to note that you must build mkimage with the compiler
+        flags for your host.
+       Also mkimage can convert files like initrd.gz to uInitrd in order to
+       be loaded it by U-Boot at boot stage.
+
+       To generate all the stuff required for a device you'll find a
+       directory for each one. Take a look in "./devices/<yourdevice>" for
+       more information related.

diff --git a/devices/efikamx/Makefile b/devices/efikamx/Makefile
new file mode 100644 (file)
index 0000000..9657996
--- /dev/null
+++ b/devices/efikamx/Makefile
@@ -0,0 +1,37 @@
+#
+# uboot/devices/efikamx/Makefile
+#
+
+PWD = $(shell pwd)
+MKIMAGE = $(PWD)/../../work/mkimage
+INITRDGZ = $(PWD)/../../../initrd/work/initrd.gz
+
+.PHONY: all clean distclean uImage boot.scr uInitrd
+
+all: uImage boot.scr uInitrd
+
+clean: uImage-clean boot.scr-clean uInitrd-clean
+
+distclean: clean
+
+uImage: # TODO
+uImage-clean: # TODO
+
+boot.scr: $(MKIMAGE) boot.script
+       $(MKIMAGE) -A arm -O linux -a 0 -e 0 -T script -C none \
+       -n "EfikaMX Boot Script" -d boot.script boot.scr
+
+boot.scr-clean:
+       rm -f boot.scr
+
+initrd.gz: $(INITRDGZ)
+       cp $(INITRDGZ) .
+
+uInitrd: $(MKIMAGE) initrd.gz
+       $(MKIMAGE) -A arm -O linux -a 0 -e 0 -T ramdisk -C none \
+       -n "initrd" -d initrd.gz uInitrd
+
+uInitrd-clean:
+       rm -f uInitrd initrd.gz
+
+# End of file

diff --git a/devices/efikamx/boot.script b/devices/efikamx/boot.script
new file mode 100644 (file)
index 0000000..206c596
--- /dev/null
+++ b/devices/efikamx/boot.script
@@ -0,0 +1,6 @@
+setenv kernel uImage;
+setenv bootargs console=ttymxc0,115200 root=/dev/sda1 rootwait ro;
+${loadcmd} ${kerneladdr} ${kernel}
+if imi ${kerneladdr}; then
+  bootm ${kerneladdr}
+fi;