diff options
Diffstat (limited to 'drivers/block/smart1,2.h')
| -rw-r--r-- | drivers/block/smart1,2.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/block/smart1,2.h b/drivers/block/smart1,2.h index 221e4a5f3..015980013 100644 --- a/drivers/block/smart1,2.h +++ b/drivers/block/smart1,2.h @@ -62,13 +62,14 @@ static void smart4_intr_mask(ctlr_info_t *h, unsigned long val) } /* - * For this card fifo is full if reading this port returns 0! + * For older cards FIFO Full = 0. + * On this card 0 means there is room, anything else FIFO Full. * */ static unsigned long smart4_fifo_full(ctlr_info_t *h) { - return (~readl(h->vaddr + S42XX_REQUEST_PORT_OFFSET)); + return (!readl(h->vaddr + S42XX_REQUEST_PORT_OFFSET)); } /* This type of controller returns -1 if the fifo is empty, @@ -81,7 +82,7 @@ static unsigned long smart4_completed(ctlr_info_t *h) = readl(h->vaddr + S42XX_REPLY_PORT_OFFSET); /* Fifo is empty */ - if( register_value == -1) + if( register_value == 0xffffffff) return 0; /* Need to let it know we got the reply */ |