This card-detect hook probably doesn't work. Perhaps somebody with more knowledge about the hardware can comment on this. I think that perhaps even the complete code from esdhc_init() could go into the getcd() function instead or mmc_getcd() needs to be called at some later time after mmc_init(), which, however, would require many other drivers to change.
In addition to implementing the hook, this patch also removes the call to the board_mmc_getcd() function which is now called from the MMC framework and is no longer required here.
Signed-off-by: Thierry Reding thierry.reding@avionic-design.de --- drivers/mmc/fsl_esdhc.c | 29 ++++++++++++----------------- 1 files changed, 12 insertions(+), 17 deletions(-)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index f719afd..b46bf9f 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -412,7 +412,6 @@ static int esdhc_init(struct mmc *mmc) struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base; int timeout = 1000; - int ret = 0;
/* Reset the entire host controller */ esdhc_write32(®s->sysctl, SYSCTL_RSTA); @@ -439,24 +438,19 @@ static int esdhc_init(struct mmc *mmc) /* Set timout to the maximum value */ esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
- /* Check if there is a callback for detecting the card */ - ret = board_mmc_getcd(mmc); - if (ret < 0) { - timeout = 1000; - while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && - --timeout) - udelay(1000); + return 0; +}
- if (timeout <= 0) - ret = NO_CARD_ERR; - } else { - if (ret == 0) - ret = NO_CARD_ERR; - else - ret = 0; - } +static int esdhc_getcd(struct mmc *mmc) +{ + struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; + struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base; + int timeout = 1000; + + while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout) + udelay(1000);
- return ret; + return timeout > 0; }
static void esdhc_reset(struct fsl_esdhc *regs) @@ -494,6 +488,7 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg) mmc->send_cmd = esdhc_send_cmd; mmc->set_ios = esdhc_set_ios; mmc->init = esdhc_init; + mmc->getcd = esdhc_getcd;
voltage_caps = 0; caps = regs->hostcapblt;