[Qemu-devel] [PULL 19/29] net/dp8393x: add PROM to store MAC address

[Leon Alrae <leon.alrae@imgtec.com>]

From: Hervé Poussineau <hpoussin@reactos.org>

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
---
 hw/mips/mips_jazz.c |  1 +
 hw/net/dp8393x.c    | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
index 648654e..9d60633 100644
--- a/hw/mips/mips_jazz.c
+++ b/hw/mips/mips_jazz.c
@@ -282,6 +282,7 @@ static void mips_jazz_init(MachineState *machine,
             qdev_init_nofail(dev);
             sysbus = SYS_BUS_DEVICE(dev);
             sysbus_mmio_map(sysbus, 0, 0x80001000);
+            sysbus_mmio_map(sysbus, 1, 0x8000b000);
             sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 4));
             break;
         } else if (is_help_option(nd->model)) {
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index 51e728b..ef1fb0e 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -25,6 +25,7 @@
 
 //#define DEBUG_SONIC
 
+#define SONIC_PROM_SIZE 0x1000
 
 #ifdef DEBUG_SONIC
 #define DPRINTF(fmt, ...) \
@@ -156,6 +157,7 @@ typedef struct dp8393xState {
     NICConf conf;
     NICState *nic;
     MemoryRegion mmio;
+    MemoryRegion prom;
 
     /* Registers */
     uint8_t cam[16][6];
@@ -816,12 +818,15 @@ static void dp8393x_instance_init(Object *obj)
     dp8393xState *s = DP8393X(obj);
 
     sysbus_init_mmio(sbd, &s->mmio);
+    sysbus_init_mmio(sbd, &s->prom);
     sysbus_init_irq(sbd, &s->irq);
 }
 
 static void dp8393x_realize(DeviceState *dev, Error **errp)
 {
     dp8393xState *s = DP8393X(dev);
+    int i, checksum;
+    uint8_t *prom;
 
     address_space_init(&s->as, s->dma_mr, "dp8393x");
     memory_region_init_io(&s->mmio, OBJECT(dev), &dp8393x_ops, s,
@@ -833,6 +838,19 @@ static void dp8393x_realize(DeviceState *dev, Error **errp)
 
     s->watchdog = timer_new_ns(QEMU_CLOCK_VIRTUAL, dp8393x_watchdog, s);
     s->regs[SONIC_SR] = 0x0004; /* only revision recognized by Linux */
+
+    memory_region_init_rom_device(&s->prom, OBJECT(dev), NULL, NULL,
+                                  "dp8393x-prom", SONIC_PROM_SIZE, NULL);
+    prom = memory_region_get_ram_ptr(&s->prom);
+    checksum = 0;
+    for (i = 0; i < 6; i++) {
+        prom[i] = s->conf.macaddr.a[i];
+        checksum += prom[i];
+        if (checksum > 0xff) {
+            checksum = (checksum + 1) & 0xff;
+        }
+    }
+    prom[7] = 0xff - checksum;
 }
 
 static Property dp8393x_properties[] = {
-- 
2.1.0