From 16d905f289d69b4c1b5b72130a2d132f947c1f63 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Fri, 22 Jun 2018 07:51:08 +0200
Subject: bsp/riscv: Add BSP options to define RAM region

Update #3433.
---
 c/src/lib/libbsp/riscv/riscv/configure.ac | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

(limited to 'c/src')

diff --git a/c/src/lib/libbsp/riscv/riscv/configure.ac b/c/src/lib/libbsp/riscv/riscv/configure.ac
index 4f8b625e15..b699a8b232 100644
--- a/c/src/lib/libbsp/riscv/riscv/configure.ac
+++ b/c/src/lib/libbsp/riscv/riscv/configure.ac
@@ -10,7 +10,6 @@ AC_INIT([rtems-c-src-lib-libbsp-riscv],[_RTEMS_VERSION],[http://www.rtems.org/bu
 RTEMS_TOP(../../../../../..)
 RTEMS_SOURCE_TOP
 RTEMS_BUILD_TOP
-RTEMS_BSP_LINKCMDS
 
 RTEMS_CANONICAL_TARGET_CPU
 AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
@@ -18,5 +17,28 @@ RTEMS_BSP_CONFIGURE
 
 RTEMS_BSP_CLEANUP_OPTIONS
 
-AC_CONFIG_FILES([Makefile])
+case "${RTEMS_BSP}" in
+  rv64*medany)
+    RISCV_RAM_REGION_BEGIN_DEFAULT=0x80000000
+    ;;
+  rv64*)
+    RISCV_RAM_REGION_BEGIN_DEFAULT=0x70000000
+    ;;
+  *)
+    RISCV_RAM_REGION_BEGIN_DEFAULT=0x80000000
+    ;;
+esac
+
+AC_DEFUN([RISCV_LINKCMD],[
+AC_ARG_VAR([$1],[$2])dnl
+[$1]=[$]{[$1]:-[$3]}
+])
+
+RISCV_LINKCMD([RISCV_RAM_REGION_BEGIN],[begin of the RAM region for linker command file (default is 0x70000000 for 64-bit with -mcmodel=medlow and 0x80000000 for all other)],[${RISCV_RAM_REGION_BEGIN_DEFAULT}])
+RISCV_LINKCMD([RISCV_RAM_REGION_SIZE],[size of the RAM region for linker command file (default 64MiB)],[0x04000000])
+
+AC_CONFIG_FILES([
+Makefile
+linkcmds:../../../../../../bsps/riscv/riscv/start/linkcmds.in
+])
 AC_OUTPUT
-- 
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