[bootlin/training-materials updates] master: Boot time labs: upgrade U-Boot version (dcaba4d2)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/dcaba4d27324d010cb78f402529c6cee45d976ef

>---------------------------------------------------------------

commit dcaba4d27324d010cb78f402529c6cee45d976ef
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Wed Apr 7 09:38:38 2021 +0200

    Boot time labs: upgrade U-Boot version
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


>---------------------------------------------------------------

dcaba4d27324d010cb78f402529c6cee45d976ef
 labs/boot-time-bootloader/boot-time-bootloader.tex             | 10 +++++-----
 labs/boot-time-build-bootloader/boot-time-build-bootloader.tex |  4 ++--
 labs/boot-time-kernel/boot-time-kernel.tex                     |  4 ++--
 .../boot-time-software-measurement.tex                         |  8 ++++----
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/labs/boot-time-bootloader/boot-time-bootloader.tex b/labs/boot-time-bootloader/boot-time-bootloader.tex
index d2342cf1..1a0ec39a 100644
--- a/labs/boot-time-bootloader/boot-time-bootloader.tex
+++ b/labs/boot-time-bootloader/boot-time-bootloader.tex
@@ -38,9 +38,9 @@ time and fill the below table:
   Step & Duration & Description \\
   \hline
   \hline
-  U-Boot SPL & & Between \code{U-Boot SPL 2021.01} and \code{U-Boot 2021.01} \\
+  U-Boot SPL & & Between \code{U-Boot SPL 2021.04} and \code{U-Boot 2021.04} \\
   \hline
-  U-Boot & & Between \code{U-Boot 2021.01} and \code{Starting kernel} \\
+  U-Boot & & Between \code{U-Boot 2021.04} and \code{Starting kernel} \\
   \hline
   Kernel + Init scripts & & Between \code{Starting kernel} and \code{Starting ffmpeg} \\
   \hline
@@ -77,9 +77,9 @@ latest results:
   Step & Duration & Description \\
   \hline
   \hline
-  U-Boot SPL & & Between \code{U-Boot SPL 2021.01} and \code{U-Boot 2021.01} \\
+  U-Boot SPL & & Between \code{U-Boot SPL 2021.04} and \code{U-Boot 2021.04} \\
   \hline
-  U-Boot & & Between \code{U-Boot 2021.01} and \code{Starting kernel} \\
+  U-Boot & & Between \code{U-Boot 2021.04} and \code{Starting kernel} \\
   \hline
   Kernel + Init scripts & & Between \code{Starting kernel} and \code{Starting ffmpeg} \\
   \hline
@@ -194,7 +194,7 @@ When it works, update your table again:
   Step & Duration & Description \\
   \hline
   \hline
-  U-Boot SPL & & Between \code{U-Boot SPL 2021.01} and \code{Starting kernel} \\
+  U-Boot SPL & & Between \code{U-Boot SPL 2021.04} and \code{Starting kernel} \\
   \hline
   Kernel + Init scripts & & Between \code{Starting kernel} and \code{Starting ffmpeg} \\
   \hline
diff --git a/labs/boot-time-build-bootloader/boot-time-build-bootloader.tex b/labs/boot-time-build-bootloader/boot-time-build-bootloader.tex
index 1c8f0b10..84e74016 100644
--- a/labs/boot-time-build-bootloader/boot-time-build-bootloader.tex
+++ b/labs/boot-time-build-bootloader/boot-time-build-bootloader.tex
@@ -8,9 +8,9 @@ platform and run it from a micro SD card provided by your instructor.
 
 Go to the \code{~/boot-time-labs/bootloader/u-boot/} directory.
 
-Let's use the 2021.01 version:
+Let's use the 2021.04 version:
 \begin{verbatim}
-git checkout v2021.01
+git checkout v2021.04
 \end{verbatim}
 
 \section{Compiling environment}
diff --git a/labs/boot-time-kernel/boot-time-kernel.tex b/labs/boot-time-kernel/boot-time-kernel.tex
index 88976d35..b7459dc2 100644
--- a/labs/boot-time-kernel/boot-time-kernel.tex
+++ b/labs/boot-time-kernel/boot-time-kernel.tex
@@ -192,9 +192,9 @@ update the below table:
   Step & Duration & Description \\
   \hline
   \hline
-  U-Boot SPL & & Between \code{U-Boot SPL 2021.01} and \code{U-Boot 2021.01} \\
+  U-Boot SPL & & Between \code{U-Boot SPL 2021.04} and \code{U-Boot 2021.04} \\
   \hline
-  U-Boot & & Between \code{U-Boot 2021.01} and \code{Starting kernel} \\
+  U-Boot & & Between \code{U-Boot 2021.04} and \code{Starting kernel} \\
   \hline
   Kernel + Init scripts & & Between \code{Starting kernel} and \code{Starting ffmpeg} \\
   \hline
diff --git a/labs/boot-time-software-measurement/boot-time-software-measurement.tex b/labs/boot-time-software-measurement/boot-time-software-measurement.tex
index 2d592b93..fa76f76d 100644
--- a/labs/boot-time-software-measurement/boot-time-software-measurement.tex
+++ b/labs/boot-time-software-measurement/boot-time-software-measurement.tex
@@ -34,11 +34,11 @@ timing information:
 
 \begin{verbatim}
 0.000000 0.000000]
-[2.596791 2.596791] U-Boot SPL 2021.01 (Mar 05 2021 - 16:02:48 +0100)
+[2.596791 2.596791] U-Boot SPL 2021.04 (Apr 05 2021 - 16:02:48 +0100)
 [2.601680 0.004889] Trying to boot from MMC1
 [3.013119 0.411439]
 [3.013584 0.000465]
-[3.013835 0.000251] U-Boot 2021.01 (Mar 05 2021 - 16:02:48 +0100)
+[3.013835 0.000251] U-Boot 2021.04 (Apr 05 2021 - 16:02:48 +0100)
 ...
 \end{verbatim}
 
@@ -131,9 +131,9 @@ Now, take your calculator and fill the below table with the results from your ex
   Step & Duration & Description \\
   \hline
   \hline
-  U-Boot SPL & & Between \code{U-Boot SPL 2021.01} and \code{U-Boot 2021.01} \\
+  U-Boot SPL & & Between \code{U-Boot SPL 2021.04} and \code{U-Boot 2021.04} \\
   \hline
-  U-Boot & & Between \code{U-Boot 2021.01} and \code{Starting kernel} \\
+  U-Boot & & Between \code{U-Boot 2021.04} and \code{Starting kernel} \\
   \hline
   Kernel & & Between \code{Starting kernel} and \code{Run /sbin/init} \\
   \hline