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| author | Michal Simek <michal.simek@xilinx.com> | 2016-11-18 16:22:42 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2016-12-02 14:37:22 +0100 |
| commit | cdb93b276ba1e477728befb36bcee17fcb770ffd (patch) | |
| tree | 800e485341910e53dd9c209e7097e0c908e7bd89 /common | |
| parent | bccfd9e9675fffa95e370b3fb02b14832c4f4bf7 (diff) | |
| download | u-boot-cdb93b276ba1e477728befb36bcee17fcb770ffd.zip u-boot-cdb93b276ba1e477728befb36bcee17fcb770ffd.tar.gz u-boot-cdb93b276ba1e477728befb36bcee17fcb770ffd.tar.bz2 | |
scsi: Simplify scsi_read/scsi_write()
There is no reason to directly point to static allocated array
when we have proper block_dev pointer available via parameter
in !CONFIG_BLK. For CONFIG_BLK this is read directly from uclass
platdata.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/scsi.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/common/scsi.c b/common/scsi.c index 5a925ba..9e4ef54 100644 --- a/common/scsi.c +++ b/common/scsi.c @@ -161,43 +161,41 @@ static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr, #ifdef CONFIG_BLK struct blk_desc *block_dev = dev_get_uclass_platdata(dev); #endif - int device = block_dev->devnum; lbaint_t start, blks; uintptr_t buf_addr; unsigned short smallblks = 0; ccb *pccb = (ccb *)&tempccb; - device &= 0xff; /* Setup device */ - pccb->target = scsi_dev_desc[device].target; - pccb->lun = scsi_dev_desc[device].lun; + pccb->target = block_dev->target; + pccb->lun = block_dev->lun; buf_addr = (unsigned long)buffer; start = blknr; blks = blkcnt; debug("\nscsi_read: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n", - device, start, blks, (unsigned long)buffer); + block_dev->devnum, start, blks, (unsigned long)buffer); do { pccb->pdata = (unsigned char *)buf_addr; #ifdef CONFIG_SYS_64BIT_LBA if (start > SCSI_LBA48_READ) { unsigned long blocks; blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK); - pccb->datalen = scsi_dev_desc[device].blksz * blocks; + pccb->datalen = block_dev->blksz * blocks; scsi_setup_read16(pccb, start, blocks); start += blocks; blks -= blocks; } else #endif if (blks > SCSI_MAX_READ_BLK) { - pccb->datalen = scsi_dev_desc[device].blksz * + pccb->datalen = block_dev->blksz * SCSI_MAX_READ_BLK; smallblks = SCSI_MAX_READ_BLK; scsi_setup_read_ext(pccb, start, smallblks); start += SCSI_MAX_READ_BLK; blks -= SCSI_MAX_READ_BLK; } else { - pccb->datalen = scsi_dev_desc[device].blksz * blks; + pccb->datalen = block_dev->blksz * blks; smallblks = (unsigned short)blks; scsi_setup_read_ext(pccb, start, smallblks); start += blks; @@ -236,33 +234,30 @@ static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr, #ifdef CONFIG_BLK struct blk_desc *block_dev = dev_get_uclass_platdata(dev); #endif - int device = block_dev->devnum; lbaint_t start, blks; uintptr_t buf_addr; unsigned short smallblks; ccb *pccb = (ccb *)&tempccb; - device &= 0xff; - /* Setup device */ - pccb->target = scsi_dev_desc[device].target; - pccb->lun = scsi_dev_desc[device].lun; + pccb->target = block_dev->target; + pccb->lun = block_dev->lun; buf_addr = (unsigned long)buffer; start = blknr; blks = blkcnt; debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n", - __func__, device, start, blks, (unsigned long)buffer); + __func__, block_dev->devnum, start, blks, (unsigned long)buffer); do { pccb->pdata = (unsigned char *)buf_addr; if (blks > SCSI_MAX_WRITE_BLK) { - pccb->datalen = (scsi_dev_desc[device].blksz * + pccb->datalen = (block_dev->blksz * SCSI_MAX_WRITE_BLK); smallblks = SCSI_MAX_WRITE_BLK; scsi_setup_write_ext(pccb, start, smallblks); start += SCSI_MAX_WRITE_BLK; blks -= SCSI_MAX_WRITE_BLK; } else { - pccb->datalen = scsi_dev_desc[device].blksz * blks; + pccb->datalen = block_dev->blksz * blks; smallblks = (unsigned short)blks; scsi_setup_write_ext(pccb, start, smallblks); start += blks; |