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piix4: Add an i8257 DMA Controller as specified in datasheet 

The i8257 is not a chipset on the Malta board, but is part of
the PIIX4 chipset.
Create the i8257 in the PIIX4 code, remove the one instantiated
in malta board, to not have it twice.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <20171216090228.28505-9-hpoussin@reactos.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Esteban Bosse <estebanbosse@gmail.com>
[PMD: rebased, reworded description]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Hervé Poussineau 2018-01-06 16:37:22 +01:00 committed by Philippe Mathieu-Daudé
parent 9b74b190d6
commit 135bfcc1ef
2 changed files with 4 additions and 2 deletions
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4
hw/isa/piix4.c
View File

@ -29,6 +29,7 @@
#include "hw/pci/pci.h"
#include "hw/isa/isa.h"
#include "hw/sysbus.h"
#include "hw/dma/i8257.h"
#include "migration/vmstate.h"
#include "sysemu/reset.h"
#include "sysemu/runstate.h"
@ -167,6 +168,9 @@ static void piix4_realize(PCIDevice *dev, Error **errp)
/* initialize ISA irqs */
isa_bus_irqs(isa_bus, s->isa);
/* DMA */
i8257_dma_init(isa_bus, 0);
piix4_dev = dev;
}

2
hw/mips/mips_malta.c
View File

@ -28,7 +28,6 @@
#include "cpu.h"
#include "hw/i386/pc.h"
#include "hw/isa/superio.h"
#include "hw/dma/i8257.h"
#include "hw/char/serial.h"
#include "net/net.h"
#include "hw/boards.h"
@ -1430,7 +1429,6 @@ void mips_malta_init(MachineState *machine)
smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100,
isa_get_irq(NULL, 9), NULL, 0, NULL);
pit = i8254_pit_init(isa_bus, 0x40, 0, NULL);
i8257_dma_init(isa_bus, 0);
mc146818_rtc_init(isa_bus, 2000, NULL);
/* generate SPD EEPROM data */