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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
This commit is contained in:
Hector Palacios 2017-02-09 16:59:59 +01:00
parent 2e003d8385
commit 30ccd116f5
2 changed files with 20 additions and 1 deletions
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10
meta-digi-dey/recipes-core/initscripts/initscripts-1.0/caam_jr0_wakeup.sh Normal file
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@ -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

11
meta-digi-dey/recipes-core/initscripts/initscripts_1.0.bbappend
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@ -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}"