diff options
| author | Alex Dubov <oakad@yahoo.com> | 2007-04-12 11:05:24 +0400 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-05-01 15:04:15 +0400 |
| commit | 5897d657b58efb244b1f82a912ee93e5141ed14c (patch) | |
| tree | 22328db6efe081b2c38cfad28666d43f53ac87c9 /drivers/mmc | |
| parent | 72dc9d9619dd4682f4197e7a7f19af22fd6516a7 (diff) | |
| download | linux-5897d657b58efb244b1f82a912ee93e5141ed14c.tar.xz | |
tifm_sd: fix resume handler
Resume should not explicitly check for media type. Instead, it may relay
on success of socket initialization.
Small changes are introduced to tifm_sd_initialize to make it more robust.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/tifm_sd.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/mmc/tifm_sd.c b/drivers/mmc/tifm_sd.c index 103060f490a6..d20ccfcd911e 100644 --- a/drivers/mmc/tifm_sd.c +++ b/drivers/mmc/tifm_sd.c @@ -36,7 +36,6 @@ module_param(fixed_timeout, bool, 0644); #define TIFM_MMCSD_INAB 0x0080 /* abort / initialize command */ #define TIFM_MMCSD_READ 0x8000 -#define TIFM_MMCSD_DATAMASK 0x401d /* set bits: CERR, EOFB, BRS, CB, EOC */ #define TIFM_MMCSD_ERRMASK 0x01e0 /* set bits: CCRC, CTO, DCRC, DTO */ #define TIFM_MMCSD_EOC 0x0001 /* end of command phase */ #define TIFM_MMCSD_CB 0x0004 /* card enter busy state */ @@ -731,7 +730,7 @@ static int tifm_sd_initialize_host(struct tifm_sd *host) sock->addr + SOCK_MMCSD_CONFIG); /* wait up to 0.51 sec for reset */ - for (rc = 2; rc <= 256; rc <<= 1) { + for (rc = 32; rc <= 256; rc <<= 1) { if (1 & readl(sock->addr + SOCK_MMCSD_SYSTEM_STATUS)) { rc = 0; break; @@ -740,8 +739,8 @@ static int tifm_sd_initialize_host(struct tifm_sd *host) } if (rc) { - printk(KERN_ERR DRIVER_NAME - ": controller failed to reset\n"); + printk(KERN_ERR "%s : controller failed to reset\n", + sock->dev.bus_id); return -ENODEV; } @@ -754,8 +753,7 @@ static int tifm_sd_initialize_host(struct tifm_sd *host) writel(64, sock->addr + SOCK_MMCSD_COMMAND_TO); writel(TIFM_MMCSD_INAB, sock->addr + SOCK_MMCSD_COMMAND); - /* INAB should take much less than reset */ - for (rc = 1; rc <= 16; rc <<= 1) { + for (rc = 16; rc <= 64; rc <<= 1) { host_status = readl(sock->addr + SOCK_MMCSD_STATUS); writel(host_status, sock->addr + SOCK_MMCSD_STATUS); if (!(host_status & TIFM_MMCSD_ERRMASK) @@ -767,12 +765,14 @@ static int tifm_sd_initialize_host(struct tifm_sd *host) } if (rc) { - printk(KERN_ERR DRIVER_NAME - ": card not ready - probe failed on initialization\n"); + printk(KERN_ERR + "%s : card not ready - probe failed on initialization\n", + sock->dev.bus_id); return -ENODEV; } - writel(TIFM_MMCSD_DATAMASK | TIFM_MMCSD_ERRMASK, + writel(TIFM_MMCSD_CERR | TIFM_MMCSD_BRS | TIFM_MMCSD_EOC + | TIFM_MMCSD_ERRMASK, sock->addr + SOCK_MMCSD_INT_ENABLE); mmiowb(); @@ -887,14 +887,17 @@ static int tifm_sd_resume(struct tifm_dev *sock) { struct mmc_host *mmc = tifm_get_drvdata(sock); struct tifm_sd *host = mmc_priv(mmc); + int rc; - if (sock->type != TIFM_TYPE_SD - || tifm_sd_initialize_host(host)) { - tifm_eject(sock); - return 0; - } else { - return mmc_resume_host(mmc); - } + rc = tifm_sd_initialize_host(host); + dev_dbg(&sock->dev, "resume initialize %d\n", rc); + + if (rc) + host->eject = 1; + else + rc = mmc_resume_host(mmc); + + return rc; } #else |