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List:       openembedded-core
Subject:    [OE-core] [PATCH] linux-dtb: Add simple DTB symlinks for devicetree
From:       Chase.Maupin () ti ! com (Chase Maupin)
Date:       2013-03-29 16:48:08
Message-ID: 1364575688-19681-1-git-send-email-Chase.Maupin () ti ! com
[Download RAW message or body]

* This is similar to the symlinks provided for the kernel image
  in the /boot directory of a file system.  The goal is to have
  simply named symlinks in /boot that mirror the device tree
  name in the kernel sources.  This is so that programs like
  U-Boot can easily find the default device tree binary in the
  /boot directory and use that when booting the kernel.
* Use update-alternatives to handle proper creation and removal
  of the symlinks.

Signed-off-by: Chase Maupin <Chase.Maupin at ti.com>
---
 meta/recipes-kernel/linux/linux-dtb.inc |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/meta/recipes-kernel/linux/linux-dtb.inc \
b/meta/recipes-kernel/linux/linux-dtb.inc index ec6c375..66cf255 100644
--- a/meta/recipes-kernel/linux/linux-dtb.inc
+++ b/meta/recipes-kernel/linux/linux-dtb.inc
@@ -45,3 +45,23 @@ do_deploy_append() {
         done
     fi
 }
+
+pkg_postinst_kernel-devicetree () {
+    cd /${KERNEL_IMAGEDEST}
+    for DTS_FILE in ${KERNEL_DEVICETREE}
+    do
+        DTS_BASE_NAME=`basename ${DTS_FILE} | awk -F "." '{print $1}'`
+        DTB_NAME="devicetree-uImage-${DTS_BASE_NAME}.dtb"
+        update-alternatives --install /${KERNEL_IMAGEDEST}/${DTS_BASE_NAME}.dtb \
${DTS_BASE_NAME}.dtb ${DTB_NAME} ${KERNEL_PRIORITY} || true +    done
+}
+
+pkg_postrm_kernel-devicetree () {
+    cd /${KERNEL_IMAGEDEST}
+    for DTS_FILE in ${KERNEL_DEVICETREE}
+    do
+        DTS_BASE_NAME=`basename ${DTS_FILE} | awk -F "." '{print $1}'`
+        DTB_NAME="devicetree-uImage-${DTS_BASE_NAME}.dtb"
+        update-alternatives --remove ${DTS_BASE_NAME}.dtb ${DTB_NAME} \
${KERNEL_PRIORITY} || true +    done
+}
-- 
1.7.0.4


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