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authorFrancois Retief <fgretief@spaceteq.co.za>2015-11-01 15:40:00 +0200
committerFrancois Retief <fgretief@spaceteq.co.za>2015-12-03 13:15:48 +0200
commit52789143a2090a77cbdda76c573a1b75cd460a9a (patch)
tree36743d6243738cfed73829abb47ec81050d166fb /arch/sparc
parentbe30dfbabbee12770221f434d2aa08627e712b97 (diff)
sparc: Move SYS_SPARC_NWINDOWS to Kconfig
Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig9
-rw-r--r--arch/sparc/cpu/leon3/start.S5
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 04dc08f41f..1d1347b167 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -12,6 +12,15 @@ config LEON3
bool
select LEON
+config SYS_SPARC_NWINDOWS
+ int "Number of SPARC register windows"
+ range 2 32
+ default "8"
+ help
+ Specify the number of SPARC register windows implemented by this
+ processor. A SPARC implementation can have from 2 to 32 windows.
+ If unsure, choose 8.
+
choice
prompt "Board select"
optional
diff --git a/arch/sparc/cpu/leon3/start.S b/arch/sparc/cpu/leon3/start.S
index 203114970b..156601027a 100644
--- a/arch/sparc/cpu/leon3/start.S
+++ b/arch/sparc/cpu/leon3/start.S
@@ -20,6 +20,11 @@
#define CONFIG_AMBAPP_IOAREA AMBA_DEFAULT_IOAREA
#endif
+/* Default number of SPARC register windows */
+#ifndef CONFIG_SYS_SPARC_NWINDOWS
+#define CONFIG_SYS_SPARC_NWINDOWS 8
+#endif
+
/* Entry for traps which jump to a programmer-specified trap handler. */
#define TRAPR(H) \
wr %g0, 0xfe0, %psr; \