nios2: Add support for Nios-II R1

Add remaining bits of the Altera NiosII R1 support into qemu, which
is documentation, MAINTAINERS file entry, configure bits, arch_init
and configuration files for both linux-user (userland binaries) and
softmmu (hardware emulation).

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chris Wulff <crwulff@gmail.com>
Cc: Jeff Da Silva <jdasilva@altera.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Sandra Loosemore <sandra@codesourcery.com>
Cc: Yves Vandervennet <yvanderv@altera.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Message-Id: <20170118220146.489-8-marex@denx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/MAINTAINERS b/MAINTAINERS
index 6a3df66..efc85e5 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -187,6 +187,14 @@ F: disas/moxie.c
 F: hw/moxie/
 F: default-configs/moxie-softmmu.mak
 
+NiosII
+M: Chris Wulff <crwulff@gmail.com>
+M: Marek Vasut <marex@denx.de>
+S: Maintained
+F: target/nios2/
+F: hw/nios2/
+F: disas/nios2.c
+
 OpenRISC
 M: Jia Liu <proljc@gmail.com>
 S: Maintained

diff --git a/arch_init.c b/arch_init.c
index c316ae1..0810116 100644 (file)
--- a/arch_init.c
+++ b/arch_init.c
@@ -63,6 +63,8 @@ int graphic_depth = 32;
 #define QEMU_ARCH QEMU_ARCH_MIPS
 #elif defined(TARGET_MOXIE)
 #define QEMU_ARCH QEMU_ARCH_MOXIE
+#elif defined(TARGET_NIOS2)
+#define QEMU_ARCH QEMU_ARCH_NIOS2
 #elif defined(TARGET_OPENRISC)
 #define QEMU_ARCH QEMU_ARCH_OPENRISC
 #elif defined(TARGET_PPC)

diff --git a/configure b/configure
index 1004ef5..86fd833 100755 (executable)
--- a/configure
+++ b/configure
@@ -5935,6 +5935,8 @@ case "$target_name" in
   ;;
   moxie)
   ;;
+  nios2)
+  ;;
   or32)
     TARGET_ARCH=openrisc
     TARGET_BASE_ARCH=openrisc
@@ -6140,6 +6142,9 @@ for i in $ARCH $TARGET_BASE_ARCH ; do
   moxie*)
     disas_config "MOXIE"
   ;;
+  nios2)
+    disas_config "NIOS2"
+  ;;
   or32)
     disas_config "OPENRISC"
   ;;

diff --git a/default-configs/nios2-linux-user.mak b/default-configs/nios2-linux-user.mak
new file mode 100644 (file)
index 0000000..5be3eb7
--- /dev/null
+++ b/default-configs/nios2-linux-user.mak
@@ -0,0 +1 @@
+# Default configuration for nios2-linux-user

diff --git a/default-configs/nios2-softmmu.mak b/default-configs/nios2-softmmu.mak
new file mode 100644 (file)
index 0000000..74dc70c
--- /dev/null
+++ b/default-configs/nios2-softmmu.mak
@@ -0,0 +1,6 @@
+# Default configuration for nios2-softmmu
+
+CONFIG_NIOS2=y
+CONFIG_SERIAL=y
+CONFIG_PTIMER=y
+CONFIG_ALTERA_TIMER=y

diff --git a/include/sysemu/arch_init.h b/include/sysemu/arch_init.h
index 20b01e3..2bf16b2 100644 (file)
--- a/include/sysemu/arch_init.h
+++ b/include/sysemu/arch_init.h
@@ -23,6 +23,7 @@ enum {
     QEMU_ARCH_UNICORE32 = (1 << 14),
     QEMU_ARCH_MOXIE = (1 << 15),
     QEMU_ARCH_TRICORE = (1 << 16),
+    QEMU_ARCH_NIOS2 = (1 << 17),
 };
 
 extern const uint32_t arch_type;

diff --git a/qemu-doc.texi b/qemu-doc.texi
index 0b2746f..fe7b69b 100644 (file)
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -2901,6 +2901,9 @@ The binary format is detected automatically.
 @command{qemu-mips} TODO.
 @command{qemu-mipsel} TODO.
 
+@cindex user mode (NiosII)
+@command{qemu-nios2} TODO.
+
 @cindex user mode (PowerPC)
 @command{qemu-ppc64abi32} TODO.
 @command{qemu-ppc64} TODO.