meta-facebook: minerva: add 99-platform-init
Add 99-platform-init to archive the following items:
1. Disable FMC_WDT2
AsT2600 uses the FMC_WDT2 register to archive the ABR feature.
Use this script to disable FMC_WDT2 before the systemd starts.
2. Detect boot flash source
Read the boot source for FMC_WDT2 and write into /run/media/slot
0: boot from primary source
1: boot from alternate source
Change-Id: I1219b870381a7292394635f7ecc29040eac8f555
Signed-off-by: Yang Chen <yang.chen@quantatw.com>
diff --git a/meta-facebook/meta-minerva/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init.bbappend b/meta-facebook/meta-minerva/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init.bbappend
new file mode 100644
index 0000000..8469d95
--- /dev/null
+++ b/meta-facebook/meta-minerva/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init.bbappend
@@ -0,0 +1,2 @@
+FILESEXTRAPATHS:append := ":${THISDIR}/${PN}"
+SOURCE_FILES:append = " 99-platform-init"
diff --git a/meta-facebook/meta-minerva/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init/99-platform-init b/meta-facebook/meta-minerva/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init/99-platform-init
new file mode 100644
index 0000000..d9def86
--- /dev/null
+++ b/meta-facebook/meta-minerva/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init/99-platform-init
@@ -0,0 +1,23 @@
+#bin/sh
+
+# Create /dev/mem
+if [ ! -c /dev/mem ]; then
+ /bin/mknod /dev/mem c 1 1
+fi
+
+# Disable FMC_WDT2
+FMC_WDT2_CTRL_VAL=$(/sbin/devmem 0x1e620064)
+FMC_WDT2_CTRL_VAL=$((16#${FMC_WDT2_CTRL_VAL#"0x"}))
+SET_VAL=$((FMC_WDT2_CTRL_VAL & 0xFFFFFFFE))
+/sbin/devmem 0x1e620064 32 "$SET_VAL"
+
+# Detect boot flash source
+SLOT_FILE="/run/media/slot"
+mkdir -p "$(dirname "${SLOT_FILE}")"
+if [ "$((FMC_WDT2_CTRL_VAL & 0x00000010))" != "0" ]; then
+ echo "1" > "$SLOT_FILE"
+else
+ echo "0" > "$SLOT_FILE"
+fi
+
+exit 0