diff options
Diffstat (limited to 'drivers/scsi/scsi.c')
| -rw-r--r-- | drivers/scsi/scsi.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 34ac47c03ab..3e556540cae 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -78,6 +78,23 @@ static void scsi_setup_inquiry(struct scsi_cmd *pccb) pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ } +static void scsi_setup_sync_cache(struct scsi_cmd *pccb, lbaint_t start, + unsigned short blocks) +{ + pccb->cmd[0] = SCSI_SYNC_CACHE; + pccb->cmd[1] = 0; + pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff; + pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff; + pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff; + pccb->cmd[5] = (unsigned char)start & 0xff; + pccb->cmd[6] = 0; + pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff; + pccb->cmd[8] = (unsigned char)blocks & 0xff; + pccb->cmd[9] = 0; + pccb->cmdlen = 10; + pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ +} + static void scsi_setup_read_ext(struct scsi_cmd *pccb, lbaint_t start, unsigned short blocks) { @@ -240,6 +257,12 @@ static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt, } buf_addr += pccb->datalen; } while (blks != 0); + + /* Flush the SCSI cache so we don't lose data on board reset. */ + scsi_setup_sync_cache(pccb, 0, 0); + if (scsi_exec(bdev, pccb)) + scsi_print_error(pccb); + debug("%s: end startblk " LBAF ", blccnt %x buffer %lX\n", __func__, start, smallblks, buf_addr); return blkcnt; |