Changeset 302 for trunk/softs/tsar_boot/README.txt

Timestamp:

Feb 26, 2013, 9:19:41 AM (12 years ago)

Author:

cfuguet

Message:

Introducing IRQ_PER_PROC constant in the tsar boot loader
(pre-loader).
This constant is used to know how many XICU irq outputs
are connected to each processor.

i.e.

IRQ_PER_PROC = 3
NPROCS=2

xicu.irq_out[0] -> proc0 xicu.irq_out[3] -> proc1
xicu.irq_out[1] -> proc0 xicu.irq_out[4] -> proc1
xicu.irq_out[2] -> proc0 xicu.irq_out[5] -> proc1

This change the way the mailboxes for each processor
are calculated in the reset.S file.

File:

• trunk/softs/tsar_boot/README.txt (modified) (2 diffs)

trunk/softs/tsar_boot/README.txt

@@ -4 +4 @@
 ===============================================================================
 src/        Source files
-                        The entry point of this boot loader is the file reset.S
+            The entry point of this boot loader is the file reset.S
 
 include/    Header files
@@ -13 +13 @@
       --->  defs_platform.h:
 
-                         This file is mandatory. This file defines the
+             This file is mandatory. This file defines the
              NB_PROCS per cluster, the NB_CLUSTERS and the base address of
              the TTY, IOC and XICU devices.
+             It also defines the IRQ_PER_PROC constant. This constant is used
+             to know how many XICU irq outputs are connected to each processor.
 
       --->  platform_soclib.dts:
 
-                         Device tree file. It is mandatory if compiling
-                         for a SOCLIB platform. If the application to execute does not use
-                         a device tree file, create an empty one.
+             Device tree file. It is mandatory if compiling
+             for a SOCLIB platform. If the application to execute does not use
+             a device tree file, create an empty one.
 
       --->  platform_fpga.dts:
-                         Device tree file. It is mandatory if compiling
-                         for a FPGA platform. If the application to execute does not use
-                         a device tree file, create an empty one.
+             Device tree file. It is mandatory if compiling
+             for a FPGA platform. If the application to execute does not use
+             a device tree file, create an empty one.
 
       --->  ldscript:
-                         LD script defining the segments of this boot loader.
+             LD script defining the segments of this boot loader.
              We define two segments:
                 seg_stack_base: Base address of the stack used by processor 0