[rtems commit] bsp/tms570: separate Flash variants to one which boots directly and one for boot loader.

[Gedare Bloom]

Module:    rtems
Branch:    master
Commit:    38404cb42c2dc0bf83cad835635d07a41dda3956
Changeset: http://git.rtems.org/rtems/commit/?id=38404cb42c2dc0bf83cad835635d07a41dda3956

Author:    Premysl Houdek <kom541000 at gmail.com>
Date:      Thu Nov 12 23:11:32 2015 +0100

bsp/tms570: separate Flash variants to one which boots directly and one for boot loader.

The default tms570ls3137_hdk variant is for building RTEMS
application image starting directly from start of Flash.

Variant tms570ls3137_hdk_with_loader skips 256kB at start
of Flash to allow use with application loader.

Signed-off-by: Pavel Pisa <pisa at cmp.felk.cvut.cz>

---

 c/src/lib/libbsp/arm/tms570/Makefile.am            |  1 +
 c/src/lib/libbsp/arm/tms570/README                 |  3 ++
 .../make/custom/tms570ls3137_hdk_with_loader.cfg   | 20 +++++++++++++
 .../startup/linkcmds.tms570ls3137_hdk_with_loader  | 33 ++++++++++++++++++++++
 4 files changed, 57 insertions(+)

diff --git a/c/src/lib/libbsp/arm/tms570/Makefile.am b/c/src/lib/libbsp/arm/tms570/Makefile.am
index 7936b07..ae67983 100644
--- a/c/src/lib/libbsp/arm/tms570/Makefile.am
+++ b/c/src/lib/libbsp/arm/tms570/Makefile.am
@@ -95,6 +95,7 @@ project_lib_DATA += startup/linkcmds
 
 EXTRA_DIST =
 EXTRA_DIST += startup/linkcmds.tms570ls3137_hdk
+EXTRA_DIST += startup/linkcmds.tms570ls3137_hdk_with_loader
 EXTRA_DIST += startup/linkcmds.tms570ls3137_hdk_sdram
 EXTRA_DIST += startup/linkcmds.tms570ls3137_hdk_intram
 
diff --git a/c/src/lib/libbsp/arm/tms570/README b/c/src/lib/libbsp/arm/tms570/README
index e1be925..f48744f 100644
--- a/c/src/lib/libbsp/arm/tms570/README
+++ b/c/src/lib/libbsp/arm/tms570/README
@@ -11,6 +11,9 @@ Drivers:
 BSP variants:
   tms570ls3137_hdk_intram - place code and data into internal SRAM
   tms570ls3137_hdk_sdram - place code into external SDRAM and data to SRAM
+  tms570ls3137_hdk_with_loader - reserve 256kB at Flash start for loader
+                                 and place RTEMS application from address
+                                 0x00040000
   tms570ls3137_hdk - variant prepared for stand-alone RTEMS application
                       stored and running directly from flash. Not working yet.
 
diff --git a/c/src/lib/libbsp/arm/tms570/make/custom/tms570ls3137_hdk_with_loader.cfg b/c/src/lib/libbsp/arm/tms570/make/custom/tms570ls3137_hdk_with_loader.cfg
new file mode 100644
index 0000000..869cf71
--- /dev/null
+++ b/c/src/lib/libbsp/arm/tms570/make/custom/tms570ls3137_hdk_with_loader.cfg
@@ -0,0 +1,20 @@
+#
+# Config file for TMS570LS3137 board.
+#
+
+include $(RTEMS_ROOT)/make/custom/default.cfg
+
+RTEMS_CPU = arm
+
+CPU_CFLAGS = -march=armv7-r -mthumb -mbig-endian -mfpu=vfpv3-d16 -mfloat-abi=hard
+
+CFLAGS_OPTIMIZE_V = -O2 -ggdb
+BINEXT?=.bin
+
+# This defines the operations performed on the linked executable.
+# is currently required.
+define bsp-post-link
+    $(OBJCOPY) -O binary --strip-all \
+        $(basename $@)$(EXEEXT) $(basename $@)$(BINEXT)
+    $(SIZE) $(basename $@)$(EXEEXT)
+endef
diff --git a/c/src/lib/libbsp/arm/tms570/startup/linkcmds.tms570ls3137_hdk_with_loader b/c/src/lib/libbsp/arm/tms570/startup/linkcmds.tms570ls3137_hdk_with_loader
new file mode 100644
index 0000000..940f303
--- /dev/null
+++ b/c/src/lib/libbsp/arm/tms570/startup/linkcmds.tms570ls3137_hdk_with_loader
@@ -0,0 +1,33 @@
+
+MEMORY {
+  ROM_BOOT(RX)  : ORIGIN = 0x00000000, LENGTH = 256k
+  ROM_INT (RX)  : ORIGIN = 0x00040000, LENGTH = 3M-256k
+  RAM_INT_VEC :    ORIGIN = 0x08000000, LENGTH = 256
+  RAM_INT (AIWX) : ORIGIN = 0x08000100, LENGTH = 256k - 256
+  RAM_EXT (AIWX) : ORIGIN = 0x80000000, LENGTH = 8M
+}
+
+REGION_ALIAS ("REGION_START", ROM_INT);
+REGION_ALIAS ("REGION_VECTOR", RAM_INT);
+REGION_ALIAS ("REGION_TEXT", ROM_INT);
+REGION_ALIAS ("REGION_TEXT_LOAD", ROM_INT);
+REGION_ALIAS ("REGION_RODATA", ROM_INT);
+REGION_ALIAS ("REGION_RODATA_LOAD", ROM_INT);
+REGION_ALIAS ("REGION_DATA", RAM_INT);
+REGION_ALIAS ("REGION_DATA_LOAD", ROM_INT);
+REGION_ALIAS ("REGION_FAST_TEXT", RAM_INT);
+REGION_ALIAS ("REGION_FAST_TEXT_LOAD", ROM_INT);
+REGION_ALIAS ("REGION_FAST_DATA", RAM_INT);
+REGION_ALIAS ("REGION_FAST_DATA_LOAD", ROM_INT);
+REGION_ALIAS ("REGION_BSS", RAM_INT);
+REGION_ALIAS ("REGION_WORK", RAM_INT);
+REGION_ALIAS ("REGION_STACK", RAM_INT);
+REGION_ALIAS ("REGION_NOCACHE", RAM_INT);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", RAM_INT);
+
+bsp_stack_main_size = DEFINED (bsp_stack_main_size) ? bsp_stack_main_size : 1024;
+bsp_stack_main_size = ALIGN (bsp_stack_main_size, bsp_stack_align);
+
+bsp_int_vec_overlay_start = ORIGIN(RAM_INT_VEC);
+
+INCLUDE linkcmds.armv4