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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>
This commit is contained in:
Alexander Graf 2012-06-06 01:19:40 +02:00
parent 4b1b1c896f
commit a053a7cea6
1 changed files with 26 additions and 28 deletions
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54
hw/ppce500_mpc8544ds.c
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@ -82,6 +82,28 @@ static void pci_map_create(void *fdt, uint32_t *pci_map, uint32_t mpic)
}
}
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 @@ static int mpc8544_load_device_tree(CPUPPCState *env,
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 @@ static int mpc8544_load_device_tree(CPUPPCState *env,
* 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);