imx8m: Add script to generate SIT (secondary image table)rel_imx_5.4.24_2.1.0

Run "./scripts/gen_sit.sh [sect_off]" to generate the secondary image
table (sit.bin), which is padded to 512 bytes.
[sect_off] is the firstSectorNumber field in SIT table.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 49bb841fd3f98f2f3f74eac6ad62628aedc33fc0)

2 files changed, 27 insertions, 0 deletions

diff --git a/scripts/gen_sit.sh b/scripts/gen_sit.sh
new file mode 100755
index 0000000..cca5a39
--- /dev/null
+++ b/scripts/gen_sit.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+if [ $# -lt 1 ]; then
+    echo "Must set the sector offset of secondary image"
+    exit -1
+fi
+
+sector_num=`printf "0x%X" $1`
+
+sed -e s/%sectornum%/${sector_num}/g scripts/sit_template > sit_gen
+chmod +x sit_gen
+
+./sit_gen
+objcopy -I binary -O binary --pad-to 512 sit.bin
+
+rm sit_gen
+echo "Generated sit.bin"
diff --git a/scripts/sit_template b/scripts/sit_template
new file mode 100755
index 0000000..93959ff
--- /dev/null
+++ b/scripts/sit_template
@@ -0,0 +1,10 @@
+#! /usr/bin/perl -w
+use strict;
+
+open(my $out, '>:raw', 'sit.bin') or die "Unable to open: $!";
+print $out pack("V", 0x0);	# chipnum
+print $out pack("V", 0x0);	# driver type
+print $out pack("V", 0x00112233);	# tag
+print $out pack("V", %sectornum%);	# firstSectorNumber
+print $out pack("V", 0x0);	# Sector count, not used
+close($out);