motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2026-01-06 14:37:42 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

fdc: remove sparc sun4m mutations

Browse source 
They were introduced in 6f7e9aec5e and
82407d1a40 and lots of bug fixes were done after that.

This fixes (at least) the detection of the floppy controller on Debian 4.0r9/SPARC,
and SS-5's OBP initialization routine still works.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 1426351846-6497-1-git-send-email-hpoussin@reactos.org
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Hervé Poussineau 2015-04-28 15:27:51 -04:00 • committed by John Snow
parent a9392bc93c
commit 24a5c62cfe
1 changed files with 0 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

17
hw/block/fdc.c
View file

@ -535,8 +535,6 @@ struct FDCtrl {
uint8_t pwrd;
/* Floppy drives */
uint8_t num_floppies;
/* Sun4m quirks? */
int sun4m;
FDrive drives[MAX_FD];
int reset_sensei;
uint32_t check_media_rate;
@ -885,13 +883,6 @@ static void fdctrl_reset_irq(FDCtrl *fdctrl)
static void fdctrl_raise_irq(FDCtrl *fdctrl)
{
/* Sparc mutation */
if (fdctrl->sun4m && (fdctrl->msr & FD_MSR_CMDBUSY)) {
/* XXX: not sure */
fdctrl->msr &= ~FD_MSR_CMDBUSY;
fdctrl->msr |= FD_MSR_RQM | FD_MSR_DIO;
return;
}
if (!(fdctrl->sra & FD_SRA_INTPEND)) {
qemu_set_irq(fdctrl->irq, 1);
fdctrl->sra |= FD_SRA_INTPEND;
@ -1080,12 +1071,6 @@ static uint32_t fdctrl_read_main_status(FDCtrl *fdctrl)
fdctrl->dsr &= ~FD_DSR_PWRDOWN;
fdctrl->dor |= FD_DOR_nRESET;
/* Sparc mutation */
if (fdctrl->sun4m) {
retval |= FD_MSR_DIO;
fdctrl_reset_irq(fdctrl);
};
FLOPPY_DPRINTF("main status register: 0x%02x\n", retval);
return retval;
@ -2241,8 +2226,6 @@ static void sun4m_fdc_initfn(Object *obj)
FDCtrlSysBus *sys = SYSBUS_FDC(obj);
FDCtrl *fdctrl = &sys->state;
fdctrl->sun4m = 1;
memory_region_init_io(&fdctrl->iomem, obj, &fdctrl_mem_strict_ops,
fdctrl, "fdctrl", 0x08);
sysbus_init_mmio(sbd, &fdctrl->iomem);