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CommitLineData
e887afc9
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1/*
2 * (C) Copyright 2001
3 * Denis Peter, MPL AG Switzerland
4 *
1a459660 5 * SPDX-License-Identifier: GPL-2.0+
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6 */
7
8/*
9 * SCSI support.
10 */
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11#include <common.h>
12#include <command.h>
e887afc9 13#include <scsi.h>
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14
15static int scsi_curr_dev; /* current device */
16
11f610ed 17/*
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18 * scsi boot command intepreter. Derived from diskboot
19 */
861fe650 20static int do_scsiboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
e887afc9 21{
7405a133 22 return common_diskboot(cmdtp, "scsi", argc, argv);
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23}
24
11f610ed 25/*
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26 * scsi command intepreter
27 */
861fe650 28static int do_scsi(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
e887afc9 29{
c002e39a
MS
30 int ret;
31
e887afc9 32 switch (argc) {
4c12eeb8
SG
33 case 0:
34 case 1:
35 return CMD_RET_USAGE;
4c12eeb8 36 case 2:
f1d4d937
SG
37 if (strncmp(argv[1], "res", 3) == 0) {
38 printf("\nReset SCSI\n");
39 scsi_bus_reset();
c002e39a
MS
40 ret = scsi_scan(1);
41 if (ret)
42 return CMD_RET_FAILURE;
43 return ret;
f1d4d937
SG
44 }
45 if (strncmp(argv[1], "inf", 3) == 0) {
11f610ed 46 blk_list_devices(IF_TYPE_SCSI);
f1d4d937
SG
47 return 0;
48 }
49 if (strncmp(argv[1], "dev", 3) == 0) {
11f610ed 50 if (blk_print_device_num(IF_TYPE_SCSI, scsi_curr_dev)) {
f1d4d937 51 printf("\nno SCSI devices available\n");
11f610ed 52 return CMD_RET_FAILURE;
e887afc9 53 }
11f610ed 54
f1d4d937
SG
55 return 0;
56 }
57 if (strncmp(argv[1], "scan", 4) == 0) {
c002e39a
MS
58 ret = scsi_scan(1);
59 if (ret)
60 return CMD_RET_FAILURE;
61 return ret;
f1d4d937
SG
62 }
63 if (strncmp(argv[1], "part", 4) == 0) {
11f610ed 64 if (blk_list_part(IF_TYPE_SCSI))
f1d4d937 65 printf("\nno SCSI devices available\n");
11f610ed 66 return 0;
f1d4d937
SG
67 }
68 return CMD_RET_USAGE;
69 case 3:
70 if (strncmp(argv[1], "dev", 3) == 0) {
71 int dev = (int)simple_strtoul(argv[2], NULL, 10);
11f610ed
SG
72
73 if (!blk_show_device(IF_TYPE_SCSI, dev)) {
74 scsi_curr_dev = dev;
75 printf("... is now current device\n");
76 } else {
77 return CMD_RET_FAILURE;
73a9cfde 78 }
f1d4d937
SG
79 return 0;
80 }
81 if (strncmp(argv[1], "part", 4) == 0) {
82 int dev = (int)simple_strtoul(argv[2], NULL, 10);
11f610ed
SG
83
84 if (blk_print_part_devnum(IF_TYPE_SCSI, dev)) {
85 printf("\nSCSI device %d not available\n",
86 dev);
87 return CMD_RET_FAILURE;
88 }
89 return 0;
f1d4d937
SG
90 }
91 return CMD_RET_USAGE;
92 default:
93 /* at least 4 args */
94 if (strcmp(argv[1], "read") == 0) {
95 ulong addr = simple_strtoul(argv[2], NULL, 16);
96 ulong blk = simple_strtoul(argv[3], NULL, 16);
97 ulong cnt = simple_strtoul(argv[4], NULL, 16);
98 ulong n;
11f610ed 99
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100 printf("\nSCSI read: device %d block # %ld, count %ld ... ",
101 scsi_curr_dev, blk, cnt);
11f610ed
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102 n = blk_read_devnum(IF_TYPE_SCSI, scsi_curr_dev, blk,
103 cnt, (ulong *)addr);
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104 printf("%ld blocks read: %s\n", n,
105 n == cnt ? "OK" : "ERROR");
106 return 0;
107 } else if (strcmp(argv[1], "write") == 0) {
108 ulong addr = simple_strtoul(argv[2], NULL, 16);
109 ulong blk = simple_strtoul(argv[3], NULL, 16);
110 ulong cnt = simple_strtoul(argv[4], NULL, 16);
111 ulong n;
11f610ed 112
f1d4d937
SG
113 printf("\nSCSI write: device %d block # %ld, count %ld ... ",
114 scsi_curr_dev, blk, cnt);
11f610ed
SG
115 n = blk_write_devnum(IF_TYPE_SCSI, scsi_curr_dev, blk,
116 cnt, (ulong *)addr);
f1d4d937
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117 printf("%ld blocks written: %s\n", n,
118 n == cnt ? "OK" : "ERROR");
119 return 0;
120 }
73a9cfde
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121 } /* switch */
122 return CMD_RET_USAGE;
758c9e69
HTL
123}
124
73a9cfde
SG
125U_BOOT_CMD(
126 scsi, 5, 1, do_scsi,
127 "SCSI sub-system",
128 "reset - reset SCSI controller\n"
129 "scsi info - show available SCSI devices\n"
130 "scsi scan - (re-)scan SCSI bus\n"
131 "scsi device [dev] - show or set current device\n"
132 "scsi part [dev] - print partition table of one or all SCSI devices\n"
133 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
134 " to memory address `addr'\n"
135 "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
136 " `blk#' from memory address `addr'"
137);
138
139U_BOOT_CMD(
140 scsiboot, 3, 1, do_scsiboot,
141 "boot from SCSI device",
142 "loadAddr dev:part"
143);