setup initrd

1 files changed, 32 insertions, 0 deletions

diff --git a/bpir3-flash2emmc b/bpir3-flash2emmc
new file mode 100755
index 000000000000..9e32c01a7d47
--- /dev/null
+++ b/bpir3-flash2emmc
@@ -0,0 +1,32 @@
+#!/usr/bin/ash
+
+# Tool for %PKGBASE% package, needs to run from initrd!
+# Connect UART and when kernel starts, keep 'x' key pressed.
+
+mkdir -p /tmp/mnt
+mount --source /dev/disk/by-partlabel/*-sdmmc-root --target /tmp/mnt
+[ $? -ne 0 ] && exit
+[ ! -e "/tmp/mnt$1" ] && exit
+echo "Reading file $1 now..."
+cp -f "/tmp/mnt$1" "/tmp/tempfile"
+umount /tmp/mnt
+[ $? -ne 0 ] && exit
+
+while [ ! -e /sys/block/mmcblk0boot0 ]; do
+  echo 11230000.mmc >/sys/bus/platform/drivers/mtk-msdc/unbind
+  sleep 0.1
+  echo 11230000.mmc >/sys/bus/platform/drivers/mtk-msdc/bind
+  echo "Flip SD/EMMC switch now!"
+  sleep 1.9
+done
+
+echo "Setting up EMMC so that mmcblk0boot0 is the bootdevice."
+mmc bootpart enable 1 1 /dev/mmcblk0
+echo "Writing $1 to EMMC now..."
+xz -dcv "/tmp/tempfile" | dd of=/dev/mmcblk0 conv=fsync,notrunc
+
+echo "Copying atf partition to mmcblk0boot0"
+echo 0 >/sys/block/mmcblk0boot0/force_ro
+dd if=/dev/mmcblk0 of=/dev/mmcblk0boot0 bs=512 skip=34 count=1024 conv=fsync,notrunc
+echo 1 >/sys/block/mmcblk0boot0/force_ro
+