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PPC: e500: Only create dt entries for existing serial ports

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When the user specifies -nodefaults he can tell us that he doesn't want any
serial ports spawned by default. While we do honor that wish, we still create
device tree entries for those non-existent devices.

Make device tree generation depend on whether the device is actually available.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2014-06-04 13:48:18 +02:00
parent 9a321e9234
commit 79c0ff2cae
1 changed files with 9 additions and 4 deletions
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13
hw/ppc/e500.c
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@ -316,10 +316,15 @@ static int ppce500_load_device_tree(MachineState *machine,
* device it finds in the dt as serial output device. And we generate
* devices in reverse order to the dt.
*/
dt_serial_create(fdt, MPC8544_SERIAL1_REGS_OFFSET,
soc, mpic, "serial1", 1, false);
dt_serial_create(fdt, MPC8544_SERIAL0_REGS_OFFSET,
soc, mpic, "serial0", 0, true);
if (serial_hds[1]) {
dt_serial_create(fdt, MPC8544_SERIAL1_REGS_OFFSET,
soc, mpic, "serial1", 1, false);
}
if (serial_hds[0]) {
dt_serial_create(fdt, MPC8544_SERIAL0_REGS_OFFSET,
soc, mpic, "serial0", 0, true);
}
snprintf(gutil, sizeof(gutil), "%s/global-utilities@%llx", soc,
MPC8544_UTIL_OFFSET);