xref: /openbmc/u-boot/cmd/sata.c (revision e35171e9)
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 <dm.h>
15 #include <command.h>
16 #include <part.h>
17 #include <sata.h>
18 #include <dm/device-internal.h>
19 #include <dm/uclass-internal.h>
20 
21 static int sata_curr_device = -1;
22 
sata_remove(int devnum)23 int sata_remove(int devnum)
24 {
25 #ifdef CONFIG_AHCI
26 	struct udevice *dev;
27 	int rc;
28 
29 	rc = uclass_find_device(UCLASS_AHCI, devnum, &dev);
30 	if (!rc && !dev)
31 		rc = uclass_find_first_device(UCLASS_AHCI, &dev);
32 	if (rc || !dev) {
33 		printf("Cannot find SATA device %d (err=%d)\n", devnum, rc);
34 		return CMD_RET_FAILURE;
35 	}
36 
37 	rc = device_remove(dev, DM_REMOVE_NORMAL);
38 	if (rc) {
39 		printf("Cannot remove SATA device '%s' (err=%d)\n", dev->name,
40 		       rc);
41 		return CMD_RET_FAILURE;
42 	}
43 
44 	return 0;
45 #else
46 	return sata_stop();
47 #endif
48 }
49 
sata_probe(int devnum)50 int sata_probe(int devnum)
51 {
52 #ifdef CONFIG_AHCI
53 	struct udevice *dev;
54 	int rc;
55 
56 	rc = uclass_get_device(UCLASS_AHCI, devnum, &dev);
57 	if (rc)
58 		rc = uclass_find_first_device(UCLASS_AHCI, &dev);
59 	if (rc) {
60 		printf("Cannot probe SATA device %d (err=%d)\n", devnum, rc);
61 		return CMD_RET_FAILURE;
62 	}
63 	if (!dev) {
64 		printf("No SATA device found!\n");
65 		return CMD_RET_FAILURE;
66 	}
67 	rc = sata_scan(dev);
68 	if (rc) {
69 		printf("Cannot scan SATA device %d (err=%d)\n", devnum, rc);
70 		return CMD_RET_FAILURE;
71 	}
72 
73 	return 0;
74 #else
75 	return sata_initialize() < 0 ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
76 #endif
77 }
78 
do_sata(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])79 static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
80 {
81 	int rc = 0;
82 
83 	if (argc >= 2) {
84 		int devnum = 0;
85 
86 		if (argc == 3)
87 			devnum = (int)simple_strtoul(argv[2], NULL, 10);
88 		if (!strcmp(argv[1], "stop"))
89 			return sata_remove(devnum);
90 
91 		if (!strcmp(argv[1], "init")) {
92 			if (sata_curr_device != -1) {
93 				rc = sata_remove(devnum);
94 				if (rc)
95 					return rc;
96 			}
97 
98 			return sata_probe(devnum);
99 		}
100 	}
101 
102 	/* If the user has not yet run `sata init`, do it now */
103 	if (sata_curr_device == -1) {
104 		rc = sata_probe(0);
105 		if (rc)
106 			return rc;
107 		sata_curr_device = 0;
108 	}
109 
110 	return blk_common_cmd(argc, argv, IF_TYPE_SATA, &sata_curr_device);
111 }
112 
113 U_BOOT_CMD(
114 	sata, 5, 1, do_sata,
115 	"SATA sub system",
116 	"init - init SATA sub system\n"
117 	"sata stop [dev] - disable SATA sub system or device\n"
118 	"sata info - show available SATA devices\n"
119 	"sata device [dev] - show or set current device\n"
120 	"sata part [dev] - print partition table\n"
121 	"sata read addr blk# cnt\n"
122 	"sata write addr blk# cnt"
123 );
124