command: Remove the cmd_tbl_t typedef
[platform/kernel/u-boot.git] / cmd / sata.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2000-2005, DENX Software Engineering
4  *              Wolfgang Denk <wd@denx.de>
5  * Copyright (C) Procsys. All rights reserved.
6  *              Mushtaq Khan <mushtaq_k@procsys.com>
7  *                      <mushtaqk_921@yahoo.co.in>
8  * Copyright (C) 2008 Freescale Semiconductor, Inc.
9  *              Dave Liu <daveliu@freescale.com>
10  */
11
12 #include <common.h>
13 #include <ahci.h>
14 #include <blk.h>
15 #include <dm.h>
16 #include <command.h>
17 #include <part.h>
18 #include <sata.h>
19 #include <dm/device-internal.h>
20 #include <dm/uclass-internal.h>
21
22 static int sata_curr_device = -1;
23
24 int sata_remove(int devnum)
25 {
26 #ifdef CONFIG_AHCI
27         struct udevice *dev;
28         int rc;
29
30         blk_unbind_all(IF_TYPE_SATA);
31
32         rc = uclass_find_device(UCLASS_AHCI, devnum, &dev);
33         if (!rc && !dev)
34                 rc = uclass_find_first_device(UCLASS_AHCI, &dev);
35         if (rc || !dev) {
36                 printf("Cannot find SATA device %d (err=%d)\n", devnum, rc);
37                 return CMD_RET_FAILURE;
38         }
39
40         rc = device_remove(dev, DM_REMOVE_NORMAL);
41         if (rc) {
42                 printf("Cannot remove SATA device '%s' (err=%d)\n", dev->name,
43                        rc);
44                 return CMD_RET_FAILURE;
45         }
46
47         return 0;
48 #else
49         return sata_stop();
50 #endif
51 }
52
53 int sata_probe(int devnum)
54 {
55 #ifdef CONFIG_AHCI
56         struct udevice *dev;
57         int rc;
58
59         rc = uclass_get_device(UCLASS_AHCI, devnum, &dev);
60         if (rc)
61                 rc = uclass_find_first_device(UCLASS_AHCI, &dev);
62         if (rc) {
63                 printf("Cannot probe SATA device %d (err=%d)\n", devnum, rc);
64                 return CMD_RET_FAILURE;
65         }
66         if (!dev) {
67                 printf("No SATA device found!\n");
68                 return CMD_RET_FAILURE;
69         }
70         rc = sata_scan(dev);
71         if (rc) {
72                 printf("Cannot scan SATA device %d (err=%d)\n", devnum, rc);
73                 return CMD_RET_FAILURE;
74         }
75
76         return 0;
77 #else
78         return sata_initialize() < 0 ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
79 #endif
80 }
81
82 static int do_sata(struct cmd_tbl *cmdtp, int flag, int argc,
83                    char *const argv[])
84 {
85         int rc = 0;
86
87         if (argc >= 2) {
88                 int devnum = 0;
89
90                 if (argc == 3)
91                         devnum = (int)simple_strtoul(argv[2], NULL, 10);
92                 if (!strcmp(argv[1], "stop"))
93                         return sata_remove(devnum);
94
95                 if (!strcmp(argv[1], "init")) {
96                         if (sata_curr_device != -1) {
97                                 rc = sata_remove(devnum);
98                                 if (rc)
99                                         return rc;
100                         }
101
102                         return sata_probe(devnum);
103                 }
104         }
105
106         /* If the user has not yet run `sata init`, do it now */
107         if (sata_curr_device == -1) {
108                 rc = sata_probe(0);
109                 if (rc)
110                         return rc;
111                 sata_curr_device = 0;
112         }
113
114         return blk_common_cmd(argc, argv, IF_TYPE_SATA, &sata_curr_device);
115 }
116
117 U_BOOT_CMD(
118         sata, 5, 1, do_sata,
119         "SATA sub system",
120         "init - init SATA sub system\n"
121         "sata stop [dev] - disable SATA sub system or device\n"
122         "sata info - show available SATA devices\n"
123         "sata device [dev] - show or set current device\n"
124         "sata part [dev] - print partition table\n"
125         "sata read addr blk# cnt\n"
126         "sata write addr blk# cnt"
127 );