Merge remote-tracking branch 'remotes/xtensa/tags/20150307-xtensa' into staging

Xtensa updates:

- implement do_unassigned_access callback;
- fix ML605 xtfpga FLASH size.

# gpg: Signature made Sat Mar  7 12:35:05 2015 GMT using RSA key ID F83FA044
# gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"

* remotes/xtensa/tags/20150307-xtensa:
  target-xtensa: xtfpga: fix ml605 flash size
  target-xtensa: implement do_unassigned_access callback
  hw/xtensa: allow reads/writes in the system I/O region

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 20 insertions, 2 deletions

diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index e5a6bba783..d441c024c2 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -162,6 +162,23 @@ static void lx60_reset(void *opaque)
     cpu_reset(CPU(cpu));
 }
 
+static uint64_t lx60_io_read(void *opaque, hwaddr addr,
+        unsigned size)
+{
+    return 0;
+}
+
+static void lx60_io_write(void *opaque, hwaddr addr,
+        uint64_t val, unsigned size)
+{
+}
+
+static const MemoryRegionOps lx60_io_ops = {
+    .read = lx60_io_read,
+    .write = lx60_io_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
 static void lx_init(const LxBoardDesc *board, MachineState *machine)
 {
 #ifdef TARGET_WORDS_BIGENDIAN
@@ -211,7 +228,8 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
     memory_region_add_subregion(system_memory, 0, ram);
 
     system_io = g_malloc(sizeof(*system_io));
-    memory_region_init(system_io, NULL, "lx60.io", 224 * 1024 * 1024);
+    memory_region_init_io(system_io, NULL, &lx60_io_ops, NULL, "lx60.io",
+                          224 * 1024 * 1024);
     memory_region_add_subregion(system_memory, 0xf0000000, system_io);
     lx60_fpga_init(system_io, 0x0d020000);
     if (nd_table[0].used) {
@@ -390,7 +408,7 @@ static void xtensa_ml605_init(MachineState *machine)
 {
     static const LxBoardDesc ml605_board = {
         .flash_base = 0xf8000000,
-        .flash_size = 0x02000000,
+        .flash_size = 0x01000000,
         .flash_sector_size = 0x20000,
         .sram_size = 0x2000000,
     };