u-boot: add environmet

Signed-off-by: Thomas Klaehn <tkl@blackfinn.de>

buildconf/local.conf.sample

@@ -13,6 +13,8 @@ PACKAGE_CLASSES ?= "package_ipk"
 
 USER_CLASSES ?= "buildstats image-mklibs image-prelink"
 
+IMAGE_BOOT_FILES_append = " uEnv.txt"
+
 PATCHRESOLVE = "noop"
 
 BB_DISKMON_DIRS = "\
@@ -31,13 +33,14 @@ BB_DISKMON_DIRS = "\
 
 CONF_VERSION = "1"
 
-INHERIT += "rm_work own-mirrors icecc"
+INHERIT += "rm_work"
 
-ICECC_PATH = "/usr/bin/icecc"
+#INHERIT += "icecc"
-ICECC_PARALLEL_MAKE = "-j 20"
+#ICECC_PATH = "/usr/bin/icecc"
+#ICECC_PARALLEL_MAKE = "-j 20"
 
+INHERIT += "own-mirrors"
 SOURCE_MIRROR_URL = "https://files.blackfinn.de/mirror/sources"
-
 BB_GENERATE_MIRROR_TARBALLS = "1"
 
 export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE DL_DIR"

recipes-bsp/u-boot/files/uEnv.txt

@@ -0,0 +1,26 @@
+# boot from sd card
+bootpart=0:2
+# boot from emmc
+#bootpart=1:2
+
+bootdir=/boot
+bootfile=zImage
+console=ttyO0,115200n8
+fdtaddr=0x88000000
+fdtfile=am335x-boneblack.dtb
+loadaddr=0x82000000
+
+# rootfs on sd card
+mmcroot=/dev/mmcblk0p2 ro
+# rootfs on emmc
+#mmcroot=/dev/mmcblk1p2 ro
+
+mmcrootfstype=ext4 rootwait
+optargs=consoleblank=0
+mmcargs=setenv bootargs console=${console} ${optargs} root=${mmcroot}
+findfdtfile=setenv fdtfile ${fdtfile}
+rootfstype=${mmcrootfstype}
+loadfdt=run findfdtfile; load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}
+loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
+uenvcmd=if run loadfdt; then echo Loaded ${fdtfile}; if run loadimage; then run mmcargs; bootz ${loadaddr} - ${fdtaddr}; fi; fi;
+

recipes-bsp/u-boot/u-boot_%.bbappend

@@ -0,0 +1,8 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+
+UBOOT_ENV = "uEnv"
+
+SRC_URI += " \
+    file://uEnv.txt \
+"
+

tools/scripts/flash_bbb.sh

@@ -21,13 +21,14 @@ w" | fdisk /dev/mmcblk1
 
 # Create file systems.
 mkfs.vfat -F 32 -n "boot" /dev/mmcblk1p1
-mkfs.ext4 -L "rootfs" /dev/mmcblk1p2
+yes | mkfs.ext4 -L "rootfs" /dev/mmcblk1p2
 
 
 # Flash boot partition.
 mount /dev/mmcblk1p1 /media
 cp MLO /media
 cp u-boot.img /media
+cp uExt.txt /media
 sync
 umount /dev/mmcblk1p1