PPC: e500: Refactor serial dt generation
When generating serial port device tree nodes, we duplicate quite a bit
of code, because there are 2 of them in the mpc8544ds board we emulate.
Shove the generating code into a function, so we duplicate less code.
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/hw/ppce500_mpc8544ds.c b/hw/ppce500_mpc8544ds.c
index bf48bc7..f6da25b 100644
--- a/hw/ppce500_mpc8544ds.c
+++ b/hw/ppce500_mpc8544ds.c
@@ -82,6 +82,28 @@
}
}
+static void dt_serial_create(void *fdt, unsigned long long offset,
+ const char *soc, const char *mpic,
+ const char *alias, int idx, bool defcon)
+{
+ char ser[128];
+
+ snprintf(ser, sizeof(ser), "%s/serial@%llx", soc, offset);
+ qemu_devtree_add_subnode(fdt, ser);
+ qemu_devtree_setprop_string(fdt, ser, "device_type", "serial");
+ qemu_devtree_setprop_string(fdt, ser, "compatible", "ns16550");
+ qemu_devtree_setprop_cells(fdt, ser, "reg", offset, 0x100);
+ qemu_devtree_setprop_cell(fdt, ser, "cell-index", idx);
+ qemu_devtree_setprop_cell(fdt, ser, "clock-frequency", 0);
+ qemu_devtree_setprop_cells(fdt, ser, "interrupts", 42, 2, 0, 0);
+ qemu_devtree_setprop_phandle(fdt, ser, "interrupt-parent", mpic);
+ qemu_devtree_setprop_string(fdt, "/aliases", alias, ser);
+
+ if (defcon) {
+ qemu_devtree_setprop_string(fdt, "/chosen", "linux,stdout-path", ser);
+ }
+}
+
static int mpc8544_load_device_tree(CPUPPCState *env,
target_phys_addr_t addr,
target_phys_addr_t ramsize,
@@ -101,8 +123,6 @@
char compatible_sb[] = "fsl,mpc8544-immr\0simple-bus";
char model[] = "MPC8544DS";
char soc[128];
- char ser0[128];
- char ser1[128];
char mpic[128];
uint32_t mpic_ph;
char gutil[128];
@@ -274,32 +294,10 @@
* device it finds in the dt as serial output device. And we generate
* devices in reverse order to the dt.
*/
- snprintf(ser1, sizeof(ser1), "%s/serial@%llx", soc,
- MPC8544_SERIAL1_REGS_BASE - MPC8544_CCSRBAR_BASE);
- qemu_devtree_add_subnode(fdt, ser1);
- qemu_devtree_setprop_string(fdt, ser1, "device_type", "serial");
- qemu_devtree_setprop_string(fdt, ser1, "compatible", "ns16550");
- qemu_devtree_setprop_cells(fdt, ser1, "reg", MPC8544_SERIAL1_REGS_BASE -
- MPC8544_CCSRBAR_BASE, 0x100);
- qemu_devtree_setprop_cell(fdt, ser1, "cell-index", 1);
- qemu_devtree_setprop_cell(fdt, ser1, "clock-frequency", 0);
- qemu_devtree_setprop_cells(fdt, ser1, "interrupts", 42, 2, 0, 0);
- qemu_devtree_setprop_phandle(fdt, ser1, "interrupt-parent", mpic);
- qemu_devtree_setprop_string(fdt, "/aliases", "serial1", ser1);
-
- snprintf(ser0, sizeof(ser0), "%s/serial@%llx", soc,
- MPC8544_SERIAL0_REGS_BASE - MPC8544_CCSRBAR_BASE);
- qemu_devtree_add_subnode(fdt, ser0);
- qemu_devtree_setprop_string(fdt, ser0, "device_type", "serial");
- qemu_devtree_setprop_string(fdt, ser0, "compatible", "ns16550");
- qemu_devtree_setprop_cells(fdt, ser0, "reg", MPC8544_SERIAL0_REGS_BASE -
- MPC8544_CCSRBAR_BASE, 0x100);
- qemu_devtree_setprop_cell(fdt, ser0, "cell-index", 0);
- qemu_devtree_setprop_cell(fdt, ser0, "clock-frequency", 0);
- qemu_devtree_setprop_cells(fdt, ser0, "interrupts", 42, 2, 0, 0);
- qemu_devtree_setprop_phandle(fdt, ser0, "interrupt-parent", mpic);
- qemu_devtree_setprop_string(fdt, "/aliases", "serial0", ser0);
- qemu_devtree_setprop_string(fdt, "/chosen", "linux,stdout-path", ser0);
+ dt_serial_create(fdt, MPC8544_SERIAL1_REGS_BASE - MPC8544_CCSRBAR_BASE,
+ soc, mpic, "serial1", 1, false);
+ dt_serial_create(fdt, MPC8544_SERIAL0_REGS_BASE - MPC8544_CCSRBAR_BASE,
+ soc, mpic, "serial0", 0, true);
snprintf(gutil, sizeof(gutil), "%s/global-utilities@%llx", soc,
MPC8544_UTIL_BASE - MPC8544_CCSRBAR_BASE);
