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q800: configure nubus available slots for Quadra 800

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Slot 0x9 is reserved for use by the in-built framebuffer whilst only slots
0xc, 0xd and 0xe physically exist on the Quadra 800.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210924073808.1041-21-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2021-09-24 08:38:08 +01:00 committed by Laurent Vivier
parent b297843ef5
commit 5ef251416b
1 changed files with 9 additions and 0 deletions
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9
hw/m68k/q800.c
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@ -78,6 +78,13 @@
#define MAC_CLOCK 3686418
/*
* Slot 0x9 is reserved for use by the in-built framebuffer whilst only
* slots 0xc, 0xd and 0xe physically exist on the Quadra 800
*/
#define Q800_NUBUS_SLOTS_AVAILABLE (BIT(0x9) | BIT(0xc) | BIT(0xd) | \
BIT(0xe))
/*
* The GLUE (General Logic Unit) is an Apple custom integrated circuit chip
* that performs a variety of functions (RAM management, clock generation, ...).
@ -392,6 +399,8 @@ static void q800_init(MachineState *machine)
/* NuBus */
dev = qdev_new(TYPE_MAC_NUBUS_BRIDGE);
qdev_prop_set_uint32(dev, "slot-available-mask",
Q800_NUBUS_SLOTS_AVAILABLE);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0,
MAC_NUBUS_FIRST_SLOT * NUBUS_SUPER_SLOT_SIZE);