On 12/25/20 12:23 AM, BALATON Zoltan wrote: > From: Guenter Roeck <li...@roeck-us.net> > > Fuloong2e needs to use legacy mode for IDE support to work with Linux. > Add property to via-ide driver to make the mode configurable, and set > legacy mode for Fuloong2e. >
Fixes: 4ea98d317eb ("ide/via: Implement and use native PCI IDE mode")? > Signed-off-by: Guenter Roeck <li...@roeck-us.net> > [balaton: Use bit in flags for property, add comment for missing BAR4] > Signed-off-by: BALATON Zoltan <bala...@eik.bme.hu> > --- > hw/ide/via.c | 19 +++++++++++++++++-- > hw/mips/fuloong2e.c | 4 +++- > 2 files changed, 20 insertions(+), 3 deletions(-) > > diff --git a/hw/ide/via.c b/hw/ide/via.c > index be09912b33..7d54d7e829 100644 > --- a/hw/ide/via.c > +++ b/hw/ide/via.c > @@ -26,6 +26,7 @@ > > #include "qemu/osdep.h" > #include "hw/pci/pci.h" > +#include "hw/qdev-properties.h" > #include "migration/vmstate.h" > #include "qemu/module.h" > #include "sysemu/dma.h" > @@ -185,12 +186,19 @@ static void via_ide_realize(PCIDevice *dev, Error > **errp) > &d->bus[1], "via-ide1-cmd", 4); > pci_register_bar(dev, 3, PCI_BASE_ADDRESS_SPACE_IO, &d->cmd_bar[1]); > > - bmdma_setup_bar(d); > - pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); > + if (!(d->flags & BIT(PCI_IDE_LEGACY_MODE))) { > + /* Missing BAR4 will make Linux driver fall back to legacy PIO mode > */ > + bmdma_setup_bar(d); > + pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); > + } > > qdev_init_gpio_in(ds, via_ide_set_irq, 2); > for (i = 0; i < 2; i++) { > ide_bus_new(&d->bus[i], sizeof(d->bus[i]), ds, i, 2); > + if (d->flags & BIT(PCI_IDE_LEGACY_MODE)) { > + ide_init_ioport(&d->bus[i], NULL, i ? 0x170 : 0x1f0, > + i ? 0x376 : 0x3f6); > + } > ide_init2(&d->bus[i], qdev_get_gpio_in(ds, i)); > > bmdma_init(&d->bus[i], &d->bmdma[i], d); > @@ -210,6 +218,12 @@ static void via_ide_exitfn(PCIDevice *dev) > } > } > > +static Property via_ide_properties[] = { > + DEFINE_PROP_BIT("legacy_mode", PCIIDEState, flags, PCI_IDE_LEGACY_MODE, > + false), > + DEFINE_PROP_END_OF_LIST(), > +}; > + > static void via_ide_class_init(ObjectClass *klass, void *data) > { > DeviceClass *dc = DEVICE_CLASS(klass); > @@ -223,6 +237,7 @@ static void via_ide_class_init(ObjectClass *klass, void > *data) > k->device_id = PCI_DEVICE_ID_VIA_IDE; > k->revision = 0x06; > k->class_id = PCI_CLASS_STORAGE_IDE; > + device_class_set_props(dc, via_ide_properties); > set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); > } > > diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c > index 45c596f4fe..f0733e87b7 100644 > --- a/hw/mips/fuloong2e.c > +++ b/hw/mips/fuloong2e.c > @@ -253,7 +253,9 @@ static void vt82c686b_southbridge_init(PCIBus *pci_bus, > int slot, qemu_irq intc, > /* Super I/O */ > isa_create_simple(isa_bus, TYPE_VT82C686B_SUPERIO); > > - dev = pci_create_simple(pci_bus, PCI_DEVFN(slot, 1), "via-ide"); > + dev = pci_new(PCI_DEVFN(slot, 1), "via-ide"); > + qdev_prop_set_bit(&dev->qdev, "legacy_mode", true); > + pci_realize_and_unref(dev, pci_bus, &error_fatal); > pci_ide_create_devs(dev); > > pci_create_simple(pci_bus, PCI_DEVFN(slot, 2), "vt82c686b-usb-uhci"); > Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>