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usb-ehci: fix reset

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Two reset fixes:
  * pick up s->usbcmd value after ehci_reset call to make sure it
    keeps the reset value and doesn't get rubbish filled in when
    val is written back to the mmio register array later on.
  * make sure the frame timer is zapped on reset.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-02-23 14:24:00 +01:00
parent 299aa1c6df
commit 81d37739df
1 changed files with 2 additions and 1 deletions
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3
hw/usb-ehci.c
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@ -912,6 +912,7 @@ static void ehci_reset(void *opaque)
}
}
ehci_queues_rip_all(s);
qemu_del_timer(s->frame_timer);
}
static uint32_t ehci_mem_readb(void *ptr, target_phys_addr_t addr)
@ -1070,7 +1071,7 @@ static void ehci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val)
if (val & USBCMD_HCRESET) {
ehci_reset(s);
val &= ~USBCMD_HCRESET;
val = s->usbcmd;
}
/* not supporting dynamic frame list size at the moment */