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authorPetter Mabäcker <petter@technux.se>2015-02-06 23:16:19 +0100
committerPetter Mabäcker <petter@technux.se>2015-02-06 23:33:52 +0100
commit4905c7cc2b72110e5254bb0172ffccfc0f582a40 (patch)
treec15086bc094fa34aafdcc90bf692ee0e2595f2aa
parent4dc75cedf738989c606766c4090f27da3a7d5cfd (diff)
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README: add info about device tree support
Add basic info about device tree support for RPi and how to use KERNEL_DEVICETREE. Also fix minor typo in the section about redmine. Change-Id: Ibfee31e319c421c09d6e9cbfbe83364e8d055b95 Signed-off-by: Petter Mabäcker <petter@technux.se>
-rw-r--r--README15
1 files changed, 14 insertions, 1 deletions
diff --git a/README b/README
index fac9826..bb2f4be 100644
--- a/README
+++ b/README
@@ -24,6 +24,7 @@ Contents:
2.H. Images
2.I. Boot to U-Boot
2.J. Image with Initramfs
+ 2.K. Device tree support
3. Extra apps
3.A. omxplayer
4. Source code and mirrors
@@ -171,6 +172,18 @@ To build an initramfs image :
* Set the meta-rasberrypi variable (in raspberrypi.conf for example)
- KERNEL_INITRAMFS = "-initramfs"
+2.K. Device tree support
+=========================
+Device tree for RPi is only supported when using linux-raspberrypi 3.18+
+kernels.
+
+ * Set KERNEL_DEVICETREE (in conf/machine/raspberrypi.conf)
+ - the trailer is added to the kernel image before kernel install task.
+ While creating the SDCard image, this modified kernel is put on
+ boot partition (as kernel.img) as well as DeviceTree blobs (.dtb files).
+
+NOTE: KERNEL_DEVICETREE is empty by default.
+
3. Extra apps
=============
@@ -247,7 +260,7 @@ In order to manage and trace the meta-raspberrypi issues, we use redmine:
Here we report, trace and develop bugs, features or support tickets for this
yocto BSP later.
-If you push patches which have a remine issue associated, please provide the
+If you push patches which have a redmine issue associated, please provide the
issue number in the commit log just before "Signed-off-by" line(s). Example line
for a bug:
[Bug #13]