diff options
Diffstat (limited to 'drivers/mmc/tifm_sd.c')
| -rw-r--r-- | drivers/mmc/tifm_sd.c | 49 |
1 files changed, 30 insertions, 19 deletions
diff --git a/drivers/mmc/tifm_sd.c b/drivers/mmc/tifm_sd.c index 8e69514e415..f692a2ec09c 100644 --- a/drivers/mmc/tifm_sd.c +++ b/drivers/mmc/tifm_sd.c @@ -7,6 +7,8 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * + * Special thanks to Brad Campbell for extensive testing of this driver. + * */ @@ -39,6 +41,7 @@ module_param(fixed_timeout, bool, 0644); #define TIFM_MMCSD_ERRMASK 0x01e0 /* set bits: CCRC, CTO, DCRC, DTO */ #define TIFM_MMCSD_EOC 0x0001 /* end of command phase */ +#define TIFM_MMCSD_CD 0x0002 /* card detect */ #define TIFM_MMCSD_CB 0x0004 /* card enter busy state */ #define TIFM_MMCSD_BRS 0x0008 /* block received/sent */ #define TIFM_MMCSD_EOFB 0x0010 /* card exit busy state */ @@ -48,6 +51,8 @@ module_param(fixed_timeout, bool, 0644); #define TIFM_MMCSD_CCRC 0x0100 /* command crc error */ #define TIFM_MMCSD_AF 0x0400 /* fifo almost full */ #define TIFM_MMCSD_AE 0x0800 /* fifo almost empty */ +#define TIFM_MMCSD_OCRB 0x1000 /* OCR busy */ +#define TIFM_MMCSD_CIRQ 0x2000 /* card irq (cmd40/sdio) */ #define TIFM_MMCSD_CERR 0x4000 /* card status error */ #define TIFM_MMCSD_ODTO 0x0040 /* open drain / extended timeout */ @@ -83,16 +88,16 @@ enum { }; struct tifm_sd { - struct tifm_dev *dev; + struct tifm_dev *dev; - unsigned short eject:1, - open_drain:1, - no_dma:1; - unsigned short cmd_flags; + unsigned short eject:1, + open_drain:1, + no_dma:1; + unsigned short cmd_flags; - unsigned int clk_freq; - unsigned int clk_div; - unsigned long timeout_jiffies; + unsigned int clk_freq; + unsigned int clk_div; + unsigned long timeout_jiffies; struct tasklet_struct finish_tasklet; struct timer_list timer; @@ -627,7 +632,8 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq) } if (host->req) { - printk(KERN_ERR DRIVER_NAME ": unfinished request detected\n"); + printk(KERN_ERR "%s : unfinished request detected\n", + sock->dev.bus_id); spin_unlock_irqrestore(&sock->lock, flags); goto err_out; } @@ -737,7 +743,8 @@ static void tifm_sd_end_cmd(unsigned long data) host->req = NULL; if (!mrq) { - printk(KERN_ERR DRIVER_NAME ": no request to complete?\n"); + printk(KERN_ERR " %s : no request to complete?\n", + sock->dev.bus_id); spin_unlock_irqrestore(&sock->lock, flags); return; } @@ -775,8 +782,10 @@ static void tifm_sd_abort(unsigned long data) { struct tifm_sd *host = (struct tifm_sd*)data; - printk(KERN_ERR DRIVER_NAME - ": card failed to respond for a long period of time\n"); + printk(KERN_ERR + "%s : card failed to respond for a long period of time " + "(%x, %x)\n", + host->dev->dev.bus_id, host->req->cmd->opcode, host->cmd_flags); tifm_eject(host->dev); } @@ -790,8 +799,11 @@ static void tifm_sd_ios(struct mmc_host *mmc, struct mmc_ios *ios) spin_lock_irqsave(&sock->lock, flags); - dev_dbg(&sock->dev, "Setting bus width %d, power %d\n", ios->bus_width, - ios->power_mode); + dev_dbg(&sock->dev, "ios: clock = %u, vdd = %x, bus_mode = %x, " + "chip_select = %x, power_mode = %x, bus_width = %x\n", + ios->clock, ios->vdd, ios->bus_mode, ios->chip_select, + ios->power_mode, ios->bus_width); + if (ios->bus_width == MMC_BUS_WIDTH_4) { writel(TIFM_MMCSD_4BBUS | readl(sock->addr + SOCK_MMCSD_CONFIG), sock->addr + SOCK_MMCSD_CONFIG); @@ -937,7 +949,8 @@ static int tifm_sd_probe(struct tifm_dev *sock) if (!(TIFM_SOCK_STATE_OCCUPIED & readl(sock->addr + SOCK_PRESENT_STATE))) { - printk(KERN_WARNING DRIVER_NAME ": card gone, unexpectedly\n"); + printk(KERN_WARNING "%s : card gone, unexpectedly\n", + sock->dev.bus_id); return rc; } @@ -974,11 +987,9 @@ static int tifm_sd_probe(struct tifm_dev *sock) if (!rc) rc = mmc_add_host(mmc); - if (rc) - goto out_free_mmc; + if (!rc) + return 0; - return 0; -out_free_mmc: mmc_free_host(mmc); return rc; } |