Hi Haijun,
On Dec 2, 2013, at 7:25 AM, Haijun Zhang wrote:
Card detection pin is ineffective on T4240QDS. This workaround force sdhc driver scan and initialize the card regardless of whether the card is inserted. if no card is in the slot, the error message "card is not inserted" will be prompted.
Signed-off-by: Haijun Zhang Haijun.Zhang@freescale.com
drivers/mmc/fsl_esdhc.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index e3cd0c7..e330379 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -500,6 +500,10 @@ static int esdhc_getcd(struct mmc *mmc) struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base; int timeout = 1000;
+/* Card detecting pin is not functional on T4240QDS */ +#if defined(CONFIG_T4240QDS)
- return 1;
+#endif
Ugh, I don't like that much.
How about a CONFIG_SYS_FSL_ESDHC_BROKEN_CD instead?
We need to do the same for the following fragment in esdhc_xfertyp()
#if defined(CONFIG_MX53) || defined(CONFIG_T4240QDS) if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) xfertyp |= XFERTYP_CMDTYP_ABORT; #endif
CONFIG_SYS_FSL_ESDHC_STOP_ABORT
while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout) udelay(1000);
-- 1.8.4
Regards
-- Pantelis
P.S. Add me to the CC list on the next version of the patch.