diff options
| author | Nicolas Pitre <nico@cam.org> | 2007-05-13 18:03:08 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-05-14 18:51:48 +0200 |
| commit | 90e07d9f54c61449dd48eff82e2354d0124d4f7e (patch) | |
| tree | 78bf317dd0e300ccf57106df951901c671013e70 /drivers | |
| parent | fe6b4c8840c5e23fe9b8696450cee8f2e8cebffd (diff) | |
pxamci: fix PXA27x MMC workaround for bad CRC with 136 bit response
... and make it depend on the response flag instead of the command type.
Signed-off-by: Nicolas Pitre <npitre@mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/pxamci.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index d97d3864b57..f8985c508bb 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -232,20 +232,14 @@ static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat) /* * workaround for erratum #42: * Intel PXA27x Family Processor Specification Update Rev 001 + * A bogus CRC error can appear if the msb of a 136 bit + * response is a one. */ - if (cmd->opcode == MMC_ALL_SEND_CID || - cmd->opcode == MMC_SEND_CSD || - cmd->opcode == MMC_SEND_CID) { - /* a bogus CRC error can appear if the msb of - the 15 byte response is a one */ - if ((cmd->resp[0] & 0x80000000) == 0) - cmd->error = MMC_ERR_BADCRC; - } else { - pr_debug("ignoring CRC from command %d - *risky*\n",cmd->opcode); - } -#else - cmd->error = MMC_ERR_BADCRC; + if (cmd->flags & MMC_RSP_136 && cmd->resp[0] & 0x80000000) { + pr_debug("ignoring CRC from command %d - *risky*\n", cmd->opcode); + } else #endif + cmd->error = MMC_ERR_BADCRC; } pxamci_disable_irq(host, END_CMD_RES); |