[FE training-materials-updates] Flash filesystem lab: instruct to update the dtb

Michael Opdenacker michael.opdenacker at free-electrons.com
Thu Mar 27 16:59:22 CET 2014

Repository : git://git.free-electrons.com/training-materials.git

On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=ac35d91feac171aab64c5cf7b88b3976e7f4d458


commit ac35d91feac171aab64c5cf7b88b3976e7f4d458
Author: Michael Opdenacker <michael.opdenacker at free-electrons.com>
Date:   Thu Mar 27 16:57:21 2014 +0100

    Flash filesystem lab: instruct to update the dtb
    - The patch we applied is a DTS file.
      Instruct people to update the DTB on their board.
    Signed-off-by: Michael Opdenacker <michael.opdenacker at free-electrons.com>


 .../sysdev-flash-filesystems.tex                   |   11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex b/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
index 06338d9..bebfbd3 100644
--- a/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
+++ b/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
@@ -31,10 +31,10 @@ be:
 Apply the \code{0001-ARM-omap-switch-back-to-SW-ECC-on-IGEP.patch}
 patch available in the
 \code{$HOME/felabs/sysdev/flash-filesystems/data} directory to your
-kernel tree. This patch fixes a problem of the 3.11.x/3.12 kernel,
-which caused the kernel to use a different ECC scheme than the U-Boot
-bootloader, making it impossible to flash from U-Boot, and read from
-the kernel.
+kernel tree. This is a Device Tree patch that fixes a problem
+of the 3.11.x/3.12 kernel, which caused the kernel to use a
+different ECC scheme than the U-Boot bootloader, making it
+impossible to flash from U-Boot, and read from the kernel.
 After applying this patch, recompile your kernel with support for
 JFFS2 and for support for MTD partitions specified in the kernel
@@ -51,6 +51,9 @@ currently causing problems with the JFFS2 filesystem. This option is
 in \code{Kernel Hacking} $\rightarrow$
 \code{Lock debugging: prove locking correctness}.
+After compiling your kernel, update the DTB file used by your board
+(remember that we applied a Device Tree patch). 
 You will update your kernel image on flash in the next section.
 \section{Filesystem image preparation}

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