hw/arm/mps2.c: Mark internal-only I2C buses as 'full'
The various MPS2 boards implemented in mps2.c have multiple I2C buses: a bus dedicated to the audio configuration, one for the LCD touchscreen controller, and two which are connected to the external Shield expansion connector. Mark the buses which are used only for board-internal devices as 'full' so that if the user creates i2c devices on the commandline without specifying a bus name then they will be connected to the I2C controller used for the Shield connector, where guest software will expect them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210903151435.22379-5-peter.maydell@linaro.org
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@ -428,7 +428,17 @@ static void mps2_common_init(MachineState *machine)
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0x40023000, /* Audio */
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0x40023000, /* Audio */
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0x40029000, /* Shield0 */
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0x40029000, /* Shield0 */
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0x4002a000}; /* Shield1 */
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0x4002a000}; /* Shield1 */
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sysbus_create_simple(TYPE_ARM_SBCON_I2C, i2cbase[i], NULL);
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DeviceState *dev;
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dev = sysbus_create_simple(TYPE_ARM_SBCON_I2C, i2cbase[i], NULL);
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if (i < 2) {
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/*
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* internal-only bus: mark it full to avoid user-created
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* i2c devices being plugged into it.
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*/
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BusState *qbus = qdev_get_child_bus(dev, "i2c");
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qbus_mark_full(qbus);
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}
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}
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}
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create_unimplemented_device("i2s", 0x40024000, 0x400);
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create_unimplemented_device("i2s", 0x40024000, 0x400);
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