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