scsi.c
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/*
* (C) Copyright 2001
* Denis Peter, MPL AG Switzerland
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* SCSI support.
*/
#include <common.h>
#include <command.h>
#include <scsi.h>
static int scsi_curr_dev; /* current device */
/*
* scsi boot command intepreter. Derived from diskboot
*/
static int do_scsiboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
return common_diskboot(cmdtp, "scsi", argc, argv);
}
/*
* scsi command intepreter
*/
static int do_scsi(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
int ret;
if (argc == 2) {
if (strncmp(argv[1], "res", 3) == 0) {
printf("\nReset SCSI\n");
#ifndef CONFIG_DM_SCSI
scsi_bus_reset(NULL);
#endif
ret = scsi_scan(true);
if (ret)
return CMD_RET_FAILURE;
return ret;
}
if (strncmp(argv[1], "scan", 4) == 0) {
ret = scsi_scan(true);
if (ret)
return CMD_RET_FAILURE;
return ret;
}
}
return blk_common_cmd(argc, argv, IF_TYPE_SCSI, &scsi_curr_dev);
}
U_BOOT_CMD(
scsi, 5, 1, do_scsi,
"SCSI sub-system",
"reset - reset SCSI controller\n"
"scsi info - show available SCSI devices\n"
"scsi scan - (re-)scan SCSI bus\n"
"scsi device [dev] - show or set current device\n"
"scsi part [dev] - print partition table of one or all SCSI devices\n"
"scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
" to memory address `addr'\n"
"scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
" `blk#' from memory address `addr'"
);
U_BOOT_CMD(
scsiboot, 3, 1, do_scsiboot,
"boot from SCSI device",
"loadAddr dev:part"
);