[Qemu-devel] [PATCH 2/2] sparc64: Use the correct type of the Mostek NVRAM chip

[Artyom Tarasenko <atar4qemu@gmail.com>]

The sun4u machines use an ISA Mostek chip which has MMIO, uses 1968
as a base year and no IRQ line. So, use the m48t08.

Please note that this patch has its OpenBIOS counterpart.
Together they fix recognising NVRAM in the sun4u machine.

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
---
 hw/sparc64/sun4u.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
index 5c2bbd4..bfb19d4 100644
--- a/hw/sparc64/sun4u.c
+++ b/hw/sparc64/sun4u.c
@@ -866,7 +866,10 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
         fd[i] = drive_get(IF_FLOPPY, 0, i);
     }
     fdctrl_init_isa(isa_bus, fd);
-    nvram = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 59);
+
+    /* XXX Ultra-5 has it at the beginning of the EBUS range, but we have
+     * serial port and other isa devices there */
+    nvram = m48t59_init_isa(isa_bus, 0x2000, NVRAM_SIZE, 8);
 
     initrd_size = 0;
     initrd_addr = 0;
-- 
1.7.1