diff options
Diffstat (limited to 'firmware/target')
| -rw-r--r-- | firmware/target/arm/as3525/sd-as3525v2.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/firmware/target/arm/as3525/sd-as3525v2.c b/firmware/target/arm/as3525/sd-as3525v2.c index b863337cbc..42db1cb471 100644 --- a/firmware/target/arm/as3525/sd-as3525v2.c +++ b/firmware/target/arm/as3525/sd-as3525v2.c @@ -559,7 +559,12 @@ static int sd_init_card(const int drive) /* CMD6 */ if(!send_cmd(drive, SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL)) return -9; - mci_delay(); + + /* This delay is a bit of a hack, but seems to fix card detection + problems with some SD cards (particularly 16 GB and bigger cards). + Preferably we should handle this properly instead of using a delay, + see also FS#11870. */ + udelay(100000); /* We need to go back to STBY state now so we can read csd */ /* CMD7 w/rca=0: Deselect card to put it in STBY state */ @@ -572,6 +577,7 @@ static int sd_init_card(const int drive) MCI_RESP|MCI_LONG_RESP, card_info[drive].csd)) return -11; + /* Another delay hack, see FS#11798 */ mci_delay(); sd_parse_csd(&card_info[drive]); |