freescale: Add a standard genimage script for MX23/MX28

Add a standard genimage script for the MXS processors (MX23 and MX28).

Based on the common scripts for the other imx devices:
board/freescale/common/genimage.cfg.template
board/freescale/common/post-image.sh

This makes it easier to add new MX23/MX28 boards configurations into
Buildroot.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/board/freescale/common/mxs/genimage.cfg.template b/board/freescale/common/mxs/genimage.cfg.template
new file mode 100644 (file)
index 0000000..e094fb7
--- /dev/null
+++ b/board/freescale/common/mxs/genimage.cfg.template
@@ -0,0 +1,39 @@
+# Minimal SD card image for the Freescale MX23/MX28 Template
+#
+# We mimic the .sdcard Freescale's MX23/MX28 image format:
+# * u-boot.sb is placed at offset 1M,
+# * a FAT partition at offset 16 MB is containing zImage/uImage and DTB files
+# * a single root filesystem partition is required (ext2, ext3 or ext4)
+#
+
+image boot.vfat {
+       vfat {
+               files = {
+                       %FILES%
+               }
+       }
+       size = 16M
+}
+
+image sdcard.img {
+       hdimage {
+       }
+
+       partition u-boot {
+               partition-type = 0x53
+               image = "u-boot.sd"
+               offset = 1M
+               size = 16M
+       }
+
+       partition kernel {
+               partition-type = 0xC
+               bootable = "true"
+               image = "boot.vfat"
+       }
+
+       partition rootfs {
+               partition-type = 0x83
+               image = "rootfs.ext2"
+       }
+}

diff --git a/board/freescale/common/mxs/post-image.sh b/board/freescale/common/mxs/post-image.sh
new file mode 100755 (executable)
index 0000000..0bfb835
--- /dev/null
+++ b/board/freescale/common/mxs/post-image.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+#
+# dtb_list extracts the list of DTB files from BR2_LINUX_KERNEL_INTREE_DTS_NAME
+# in ${BR_CONFIG}, then prints the corresponding list of file names for the
+# genimage configuration file
+#
+dtb_list()
+{
+       local DTB_LIST="$(sed -n 's/^BR2_LINUX_KERNEL_INTREE_DTS_NAME="\([a-z0-9 \-]*\)"$/\1/p' ${BR2_CONFIG})"
+
+       for dt in $DTB_LIST; do
+               echo -n "\"$dt.dtb\", "
+       done
+}
+
+#
+# linux_image extracts the Linux image format from BR2_LINUX_KERNEL_UIMAGE in
+# ${BR_CONFIG}, then prints the corresponding file name for the genimage
+# configuration file
+#
+linux_image()
+{
+       if grep -Eq "^BR2_LINUX_KERNEL_UIMAGE=y$" ${BR2_CONFIG}; then
+               echo "\"uImage\""
+       else
+               echo "\"zImage\""
+       fi
+}
+
+main()
+{
+       local FILES="$(dtb_list) $(linux_image)"
+       local GENIMAGE_CFG="$(mktemp --suffix genimage.cfg)"
+       local GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
+
+       sed -e "s/%FILES%/${FILES}/" \
+               board/freescale/common/mxs/genimage.cfg.template > ${GENIMAGE_CFG}
+
+       rm -rf "${GENIMAGE_TMP}"
+
+       genimage \
+               --rootpath "${TARGET_DIR}" \
+               --tmppath "${GENIMAGE_TMP}" \
+               --inputpath "${BINARIES_DIR}" \
+               --outputpath "${BINARIES_DIR}" \
+               --config "${GENIMAGE_CFG}"
+
+       rm -f ${GENIMAGE_CFG}
+
+       exit $?
+}
+
+main $@