diff options
Diffstat (limited to 'firmware/target/arm/as3525')
-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) | |||
559 | /* CMD6 */ | 559 | /* CMD6 */ |
560 | if(!send_cmd(drive, SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL)) | 560 | if(!send_cmd(drive, SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL)) |
561 | return -9; | 561 | return -9; |
562 | mci_delay(); | 562 | |
563 | /* This delay is a bit of a hack, but seems to fix card detection | ||
564 | problems with some SD cards (particularly 16 GB and bigger cards). | ||
565 | Preferably we should handle this properly instead of using a delay, | ||
566 | see also FS#11870. */ | ||
567 | udelay(100000); | ||
563 | 568 | ||
564 | /* We need to go back to STBY state now so we can read csd */ | 569 | /* We need to go back to STBY state now so we can read csd */ |
565 | /* CMD7 w/rca=0: Deselect card to put it in STBY state */ | 570 | /* CMD7 w/rca=0: Deselect card to put it in STBY state */ |
@@ -572,6 +577,7 @@ static int sd_init_card(const int drive) | |||
572 | MCI_RESP|MCI_LONG_RESP, card_info[drive].csd)) | 577 | MCI_RESP|MCI_LONG_RESP, card_info[drive].csd)) |
573 | return -11; | 578 | return -11; |
574 | 579 | ||
580 | /* Another delay hack, see FS#11798 */ | ||
575 | mci_delay(); | 581 | mci_delay(); |
576 | 582 | ||
577 | sd_parse_csd(&card_info[drive]); | 583 | sd_parse_csd(&card_info[drive]); |