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path: root/hw/openrisc/openrisc_sim.c
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Diffstat (limited to 'hw/openrisc/openrisc_sim.c')
-rw-r--r--hw/openrisc/openrisc_sim.c32
1 files changed, 24 insertions, 8 deletions
diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
index d12b3e0c5e..5bfbac00f8 100644
--- a/hw/openrisc/openrisc_sim.c
+++ b/hw/openrisc/openrisc_sim.c
@@ -137,6 +137,28 @@ static void openrisc_sim_ompic_init(hwaddr base, int num_cpus,
sysbus_mmio_map(s, 0, base);
}
+static void openrisc_sim_serial_init(hwaddr base, int num_cpus,
+ OpenRISCCPU *cpus[], int irq_pin)
+{
+ qemu_irq serial_irq;
+ int i;
+
+ if (num_cpus > 1) {
+ DeviceState *splitter = qdev_new(TYPE_SPLIT_IRQ);
+ qdev_prop_set_uint32(splitter, "num-lines", num_cpus);
+ qdev_realize_and_unref(splitter, NULL, &error_fatal);
+ for (i = 0; i < num_cpus; i++) {
+ qdev_connect_gpio_out(splitter, i, get_cpu_irq(cpus, i, irq_pin));
+ }
+ serial_irq = qdev_get_gpio_in(splitter, 0);
+ } else {
+ serial_irq = get_cpu_irq(cpus, 0, irq_pin);
+ }
+ serial_mm_init(get_system_memory(), base, 0, serial_irq, 115200,
+ serial_hd(0), DEVICE_NATIVE_ENDIAN);
+}
+
+
static void openrisc_load_kernel(ram_addr_t ram_size,
const char *kernel_filename)
{
@@ -177,7 +199,6 @@ static void openrisc_sim_init(MachineState *machine)
const char *kernel_filename = machine->kernel_filename;
OpenRISCCPU *cpus[2] = {};
MemoryRegion *ram;
- qemu_irq serial_irq;
int n;
unsigned int smp_cpus = machine->smp.cpus;
@@ -208,15 +229,10 @@ static void openrisc_sim_init(MachineState *machine)
if (smp_cpus > 1) {
openrisc_sim_ompic_init(or1ksim_memmap[OR1KSIM_OMPIC].base, smp_cpus,
cpus, OR1KSIM_OMPIC_IRQ);
-
- serial_irq = qemu_irq_split(get_cpu_irq(cpus, 0, OR1KSIM_UART_IRQ),
- get_cpu_irq(cpus, 1, OR1KSIM_UART_IRQ));
- } else {
- serial_irq = get_cpu_irq(cpus, 0, OR1KSIM_UART_IRQ);
}
- serial_mm_init(get_system_memory(), or1ksim_memmap[OR1KSIM_UART].base, 0,
- serial_irq, 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);
+ openrisc_sim_serial_init(or1ksim_memmap[OR1KSIM_UART].base, smp_cpus, cpus,
+ OR1KSIM_UART_IRQ);
openrisc_load_kernel(ram_size, kernel_filename);
}