1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * (C) Copyright 2001 4 * Denis Peter, MPL AG Switzerland 5 */ 6 7/* 8 * SCSI support. 9 */ 10#include <common.h> 11#include <blk.h> 12#include <command.h> 13#include <scsi.h> 14 15static int scsi_curr_dev; /* current device */ 16 17/* 18 * scsi boot command intepreter. Derived from diskboot 19 */ 20static int do_scsiboot(struct cmd_tbl *cmdtp, int flag, int argc, 21 char *const argv[]) 22{ 23 return common_diskboot(cmdtp, "scsi", argc, argv); 24} 25 26/* 27 * scsi command intepreter 28 */ 29static int do_scsi(struct cmd_tbl *cmdtp, int flag, int argc, 30 char *const argv[]) 31{ 32 int ret; 33 34 if (argc == 2) { 35 if (strncmp(argv[1], "res", 3) == 0) { 36 printf("\nReset SCSI\n"); 37 ret = scsi_scan(true); 38 if (ret) 39 return CMD_RET_FAILURE; 40 return ret; 41 } 42 if (strncmp(argv[1], "scan", 4) == 0) { 43 ret = scsi_scan(true); 44 if (ret) 45 return CMD_RET_FAILURE; 46 return ret; 47 } 48 } 49 50 return blk_common_cmd(argc, argv, UCLASS_SCSI, &scsi_curr_dev); 51} 52 53U_BOOT_CMD( 54 scsi, 5, 1, do_scsi, 55 "SCSI sub-system", 56 "reset - reset SCSI controller\n" 57 "scsi info - show available SCSI devices\n" 58 "scsi scan - (re-)scan SCSI bus\n" 59 "scsi device [dev] - show or set current device\n" 60 "scsi part [dev] - print partition table of one or all SCSI devices\n" 61 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n" 62 " to memory address `addr'\n" 63 "scsi write addr blk# cnt - write `cnt' blocks starting at block\n" 64 " `blk#' from memory address `addr'" 65); 66 67U_BOOT_CMD( 68 scsiboot, 3, 1, do_scsiboot, 69 "boot from SCSI device", 70 "loadAddr dev:part" 71); 72