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aacf214d JJ |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * | |
4 | * Driver interface derived from: | |
5 | * /cmd/host.c | |
6 | * Copyright (c) 2012, Google Inc. | |
7 | * | |
8 | * Copyright (C) 2023 Johan Jonker <jbx6244@gmail.com> | |
9 | */ | |
10 | ||
d678a59d | 11 | #include <common.h> |
aacf214d JJ |
12 | #include <blk.h> |
13 | #include <command.h> | |
14 | #include <dm.h> | |
15 | #include <rkmtd.h> | |
16 | #include <stdio.h> | |
17 | #include <dm/device-internal.h> | |
18 | #include <dm/uclass-internal.h> | |
19 | ||
20 | static int do_rkmtd_bind(struct cmd_tbl *cmdtp, int flag, int argc, | |
21 | char *const argv[]) | |
22 | { | |
23 | struct udevice *dev; | |
24 | const char *label; | |
25 | int ret; | |
26 | ||
27 | argc--; | |
28 | argv++; | |
29 | ||
30 | if (argc < 1) | |
31 | return CMD_RET_USAGE; | |
32 | ||
33 | if (argc > 1) | |
34 | return CMD_RET_USAGE; | |
35 | ||
36 | label = argv[0]; | |
37 | ret = rkmtd_create_attach_mtd(label, &dev); | |
38 | if (ret) { | |
39 | printf("Cannot create device / bind mtd\n"); | |
40 | return CMD_RET_FAILURE; | |
41 | } | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | static struct udevice *parse_rkmtd_label(const char *label) | |
47 | { | |
48 | struct udevice *dev; | |
49 | ||
50 | dev = rkmtd_find_by_label(label); | |
51 | if (!dev) { | |
52 | int devnum; | |
53 | char *ep; | |
54 | ||
55 | devnum = hextoul(label, &ep); | |
56 | if (*ep || | |
57 | uclass_find_device_by_seq(UCLASS_RKMTD, devnum, &dev)) { | |
58 | printf("No such device '%s'\n", label); | |
59 | return NULL; | |
60 | } | |
61 | } | |
62 | ||
63 | return dev; | |
64 | } | |
65 | ||
66 | static int do_rkmtd_unbind(struct cmd_tbl *cmdtp, int flag, int argc, | |
67 | char *const argv[]) | |
68 | { | |
69 | struct udevice *dev; | |
70 | const char *label; | |
71 | int ret; | |
72 | ||
73 | if (argc < 2) | |
74 | return CMD_RET_USAGE; | |
75 | ||
76 | label = argv[1]; | |
77 | dev = parse_rkmtd_label(label); | |
78 | if (!dev) | |
79 | return CMD_RET_FAILURE; | |
80 | ||
81 | ret = rkmtd_detach(dev); | |
82 | if (ret) { | |
83 | printf("Cannot detach mtd\n"); | |
84 | return CMD_RET_FAILURE; | |
85 | } | |
86 | ||
87 | ret = device_unbind(dev); | |
88 | if (ret) { | |
89 | printf("Cannot unbind device '%s'\n", dev->name); | |
90 | return CMD_RET_FAILURE; | |
91 | } | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
96 | static void show_rkmtd_dev(struct udevice *dev) | |
97 | { | |
98 | struct rkmtd_dev *plat = dev_get_plat(dev); | |
99 | struct blk_desc *desc; | |
100 | struct udevice *blk; | |
101 | int ret; | |
102 | ||
103 | printf("%3d ", dev_seq(dev)); | |
104 | ||
105 | ret = blk_get_from_parent(dev, &blk); | |
106 | if (ret) | |
107 | return; | |
108 | ||
109 | desc = dev_get_uclass_plat(blk); | |
110 | printf("%12lu %-15s\n", (unsigned long)desc->lba, plat->label); | |
111 | } | |
112 | ||
113 | static int do_rkmtd_info(struct cmd_tbl *cmdtp, int flag, int argc, | |
114 | char *const argv[]) | |
115 | { | |
116 | struct udevice *dev; | |
117 | ||
118 | if (argc < 1) | |
119 | return CMD_RET_USAGE; | |
120 | ||
121 | dev = NULL; | |
122 | if (argc >= 2) { | |
123 | dev = parse_rkmtd_label(argv[1]); | |
124 | if (!dev) | |
125 | return CMD_RET_FAILURE; | |
126 | } | |
127 | ||
128 | printf("%3s %12s %-15s\n", "dev", "blocks", "label"); | |
129 | if (dev) { | |
130 | show_rkmtd_dev(dev); | |
131 | } else { | |
132 | struct uclass *uc; | |
133 | ||
134 | uclass_id_foreach_dev(UCLASS_RKMTD, dev, uc) | |
135 | show_rkmtd_dev(dev); | |
136 | } | |
137 | ||
138 | return 0; | |
139 | } | |
140 | ||
141 | static int do_rkmtd_dev(struct cmd_tbl *cmdtp, int flag, int argc, | |
142 | char *const argv[]) | |
143 | { | |
144 | struct udevice *dev; | |
145 | const char *label; | |
146 | ||
147 | if (argc < 1 || argc > 3) | |
148 | return CMD_RET_USAGE; | |
149 | ||
150 | if (argc == 1) { | |
151 | struct rkmtd_dev *plat; | |
152 | ||
153 | dev = rkmtd_get_cur_dev(); | |
154 | if (!dev) { | |
155 | printf("No current rkmtd device\n"); | |
156 | return CMD_RET_FAILURE; | |
157 | } | |
158 | plat = dev_get_plat(dev); | |
159 | printf("Current rkmtd device: %d: %s\n", dev_seq(dev), | |
160 | plat->label); | |
161 | return 0; | |
162 | } | |
163 | ||
164 | label = argv[1]; | |
165 | dev = parse_rkmtd_label(argv[1]); | |
166 | if (!dev) | |
167 | return CMD_RET_FAILURE; | |
168 | ||
169 | rkmtd_set_cur_dev(dev); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | static struct cmd_tbl cmd_rkmtd_sub[] = { | |
175 | U_BOOT_CMD_MKENT(bind, 4, 0, do_rkmtd_bind, "", ""), | |
176 | U_BOOT_CMD_MKENT(unbind, 4, 0, do_rkmtd_unbind, "", ""), | |
177 | U_BOOT_CMD_MKENT(info, 3, 0, do_rkmtd_info, "", ""), | |
178 | U_BOOT_CMD_MKENT(dev, 0, 1, do_rkmtd_dev, "", ""), | |
179 | }; | |
180 | ||
181 | static int do_rkmtd(struct cmd_tbl *cmdtp, int flag, int argc, | |
182 | char *const argv[]) | |
183 | { | |
184 | struct cmd_tbl *c; | |
185 | ||
186 | argc--; | |
187 | argv++; | |
188 | ||
189 | c = find_cmd_tbl(argv[0], cmd_rkmtd_sub, ARRAY_SIZE(cmd_rkmtd_sub)); | |
190 | ||
191 | if (c) | |
192 | return c->cmd(cmdtp, flag, argc, argv); | |
193 | else | |
194 | return CMD_RET_USAGE; | |
195 | } | |
196 | ||
197 | U_BOOT_CMD( | |
198 | rkmtd, 8, 1, do_rkmtd, | |
199 | "Rockchip MTD sub-system", | |
200 | "bind <label> - bind RKMTD device\n" | |
201 | "rkmtd unbind <label> - unbind RKMTD device\n" | |
202 | "rkmtd info [<label>] - show all available RKMTD devices\n" | |
203 | "rkmtd dev [<label>] - show or set current RKMTD device\n" | |
204 | ); |