diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_scsi.c | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c index fe705b6239..aaca3e8a2a 100644 --- a/common/cmd_scsi.c +++ b/common/cmd_scsi.c @@ -56,6 +56,8 @@ static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE]; void scsi_setup_test_unit_ready(ccb * pccb); void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks); void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks); +void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks); + static void scsi_setup_write_ext(ccb *pccb, lbaint_t start, unsigned short blocks); void scsi_setup_inquiry(ccb * pccb); @@ -357,7 +359,9 @@ int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) * scsi_read */ -#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */ +/* almost the maximum amount of the scsi_ext command.. */ +#define SCSI_MAX_READ_BLK 0xFFFF +#define SCSI_LBA48_READ 0xFFFFFFF static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt, void *buffer) @@ -379,7 +383,17 @@ static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt, device, start, blks, (unsigned long)buffer); do { pccb->pdata=(unsigned char *)buf_addr; - if(blks>SCSI_MAX_READ_BLK) { +#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; + 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 * SCSI_MAX_READ_BLK; smallblks=SCSI_MAX_READ_BLK; scsi_setup_read_ext(pccb,start,smallblks); @@ -579,6 +593,37 @@ void scsi_setup_test_unit_ready(ccb * pccb) pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ } +#ifdef CONFIG_SYS_64BIT_LBA +void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks) +{ + pccb->cmd[0] = SCSI_READ16; + pccb->cmd[1] = pccb->lun<<5; + pccb->cmd[2] = ((unsigned char) (start >> 56)) & 0xff; + pccb->cmd[3] = ((unsigned char) (start >> 48)) & 0xff; + pccb->cmd[4] = ((unsigned char) (start >> 40)) & 0xff; + pccb->cmd[5] = ((unsigned char) (start >> 32)) & 0xff; + pccb->cmd[6] = ((unsigned char) (start >> 24)) & 0xff; + pccb->cmd[7] = ((unsigned char) (start >> 16)) & 0xff; + pccb->cmd[8] = ((unsigned char) (start >> 8)) & 0xff; + pccb->cmd[9] = ((unsigned char) (start)) & 0xff; + pccb->cmd[10] = 0; + pccb->cmd[11] = ((unsigned char) (blocks >> 24)) & 0xff; + pccb->cmd[12] = ((unsigned char) (blocks >> 16)) & 0xff; + pccb->cmd[13] = ((unsigned char) (blocks >> 8)) & 0xff; + pccb->cmd[14] = (unsigned char) blocks & 0xff; + pccb->cmd[15] = 0; + pccb->cmdlen = 16; + pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ + debug ("scsi_setup_read16: cmd: %02X %02X " + "startblk %02X%02X%02X%02X%02X%02X%02X%02X " + "blccnt %02X%02X%02X%02X\n", + pccb->cmd[0], pccb->cmd[1], + pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], + pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9], + pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]); +} +#endif + void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks) { pccb->cmd[0]=SCSI_READ10; |
