diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2011-06-07 20:02:29 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2011-06-14 12:56:50 +0200 |
| commit | 4b0315d7edcbcfcbb07f7935c6e879b3f49fb99e (patch) | |
| tree | cae2e028562109f7a328d5debc78980342a78b8f /hw/usb-ohci.c | |
| parent | 4001f22ffdd6bc890ffc58e6e1ac75443fe67c97 (diff) | |
hw/usb-ohci.c: Ignore writes to HcPeriodCurrentED register
HcPeriodCurrentED is read-only, but Linux writes to it anyway; silently
ignore this rather than printing a warning message.
(Specifically, drivers/usb/host/ohci-hub.c:ohci_rh_resume() writes a
0, in at least kernels 2.6.25 through 2.6.39.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb-ohci.c')
| -rw-r--r-- | hw/usb-ohci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/usb-ohci.c b/hw/usb-ohci.c index 401045a28f..ab774347f3 100644 --- a/hw/usb-ohci.c +++ b/hw/usb-ohci.c @@ -1575,6 +1575,10 @@ static void ohci_mem_write(void *ptr, target_phys_addr_t addr, uint32_t val) ohci->hcca = val & OHCI_HCCA_MASK; break; + case 7: /* HcPeriodCurrentED */ + /* Ignore writes to this read-only register, Linux does them */ + break; + case 8: /* HcControlHeadED */ ohci->ctrl_head = val & OHCI_EDPTR_MASK; break; |