diff options
| author | Andrew Baumann <Andrew.Baumann@microsoft.com> | 2015-12-21 14:47:48 -0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2015-12-22 16:34:26 +0800 |
| commit | 62d32ec817f985ce1c38868d279d449c80975ff2 (patch) | |
| tree | 03f75fef114e65941173758f772134888a4822ea /hw/sd/sdhci.c | |
| parent | 6890a695d954f33c8a9c4efd3037fdb707fe28ec (diff) | |
| download | qemu-62d32ec817f985ce1c38868d279d449c80975ff2.zip | |
sdhci: don't raise a command index error for an unexpected response
This deletes a block of code that raised a command index error if a
command returned response data, but the guest did not set the
appropriate bits in the response register to handle such a response. I
cannot find any documentation that suggests the controller should
behave in this way, the error code doesn't make sense (command index
error is defined for the case where the index in a response does not
match that of the issued command), and in at least one case (CMD23
issued by UEFI on Raspberry Pi 2), actual hardware does not do this.
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1450738069-18664-3-git-send-email-Andrew.Baumann@microsoft.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/sd/sdhci.c')
| -rw-r--r-- | hw/sd/sdhci.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index bc39d48ac4..dd83e89d52 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -243,9 +243,6 @@ static void sdhci_send_command(SDHCIState *s) (s->cmdreg & SDHC_CMD_RESPONSE) == SDHC_CMD_RSP_WITH_BUSY) { s->norintsts |= SDHC_NIS_TRSCMP; } - } else if (rlen != 0 && (s->errintstsen & SDHC_EISEN_CMDIDX)) { - s->errintsts |= SDHC_EIS_CMDIDX; - s->norintsts |= SDHC_NIS_ERR; } if (s->norintstsen & SDHC_NISEN_CMDCMP) { |