From 30ccd116f5092d2a4604ab815d5ce46aef33ca5a Mon Sep 17 00:00:00 2001
From: Hector Palacios <hector.palacios@digi.com>
Date: Thu, 9 Feb 2017 16:59:59 +0100
Subject: [PATCH] initscripts: add script to enable CAAM JS0 wakeup

According to NXP i.MX Linux Reference Manual:

The full CAAM function is exclusive with the Mega/Fast mix off feature
in DSM.  If CAAM is enabled, the Mega/Fast mix off feature needs to be
disabled, and the user should
  "echo enabled > /sys/bus/platform/devices/2100000.aips-bus/2100000.caam/2101000.jr0/power/wakeup"
after the kernel boots up, and then Mega/Fast mix will keep the power
on in DSM.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>

https://jira.digi.com/browse/DEL-3636
---
 .../initscripts/initscripts-1.0/caam_jr0_wakeup.sh    | 10 ++++++++++
 .../recipes-core/initscripts/initscripts_1.0.bbappend | 11 ++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 meta-digi-dey/recipes-core/initscripts/initscripts-1.0/caam_jr0_wakeup.sh

diff --git a/meta-digi-dey/recipes-core/initscripts/initscripts-1.0/caam_jr0_wakeup.sh b/meta-digi-dey/recipes-core/initscripts/initscripts-1.0/caam_jr0_wakeup.sh
new file mode 100644
index 000000000..380a98e66
--- /dev/null
+++ b/meta-digi-dey/recipes-core/initscripts/initscripts-1.0/caam_jr0_wakeup.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# The full CAAM function is exclusive with the Mega/Fast mix off feature in DSM.
+# If CAAM is enabled, the Mega/Fast mix off feature needs to be disabled, and
+# the user should enable CAAM jr0 as a wakeup source after the kernel boots up,
+# and then Mega/Fast mix will keep the power on in DSM.
+JR0_WAKEUP="/sys/bus/platform/devices/2100000.aips-bus/2140000.caam/2141000.jr0/power/wakeup"
+if [ -f "${JR0_WAKEUP}" ]; then
+	echo "enabled" > "${JR0_WAKEUP}"
+fi
diff --git a/meta-digi-dey/recipes-core/initscripts/initscripts_1.0.bbappend b/meta-digi-dey/recipes-core/initscripts/initscripts_1.0.bbappend
index 91197617c..d803b5e8e 100644
--- a/meta-digi-dey/recipes-core/initscripts/initscripts_1.0.bbappend
+++ b/meta-digi-dey/recipes-core/initscripts/initscripts_1.0.bbappend
@@ -1,12 +1,21 @@
-# Copyright (C) 2013 Digi International.
+# Copyright (C) 2013-2017 Digi International.
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/${BP}:"
 
 SRC_URI += "file://device_table.txt \
 	    file://devtmpfs.sh"
 
+SRC_URI_append_ccimx6ul = " file://caam_jr0_wakeup.sh"
+
 do_install_append() {
 	install -m 755 ${WORKDIR}/devtmpfs.sh ${D}${sysconfdir}/init.d/devtmpfs.sh
 	update-rc.d -r ${D} devtmpfs.sh start 03 S .
 	install -m 0755 ${WORKDIR}/device_table.txt ${D}${sysconfdir}/device_table
 }
+
+do_install_append_ccimx6ul() {
+	install -m 0755 ${WORKDIR}/caam_jr0_wakeup.sh ${D}${sysconfdir}/init.d/caam_jr0_wakeup.sh
+	update-rc.d -r ${D} caam_jr0_wakeup.sh start 20 S .
+}
+
+PACKAGE_ARCH = "${MACHINE_ARCH}"