1 *d5a83139SPatrice Chotard // SPDX-License-Identifier: GPL-2.0+
2 *d5a83139SPatrice Chotard /*
3 *d5a83139SPatrice Chotard * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
4 *d5a83139SPatrice Chotard */
5 *d5a83139SPatrice Chotard
6 *d5a83139SPatrice Chotard #include <common.h>
7 *d5a83139SPatrice Chotard #include <command.h>
8 *d5a83139SPatrice Chotard #include <dm.h>
9 *d5a83139SPatrice Chotard #include <errno.h>
10 *d5a83139SPatrice Chotard #include <dm/pinctrl.h>
11 *d5a83139SPatrice Chotard #include <dm/uclass-internal.h>
12 *d5a83139SPatrice Chotard
13 *d5a83139SPatrice Chotard #define LIMIT_DEVNAME 30
14 *d5a83139SPatrice Chotard
15 *d5a83139SPatrice Chotard static struct udevice *currdev;
16 *d5a83139SPatrice Chotard
do_dev(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])17 *d5a83139SPatrice Chotard static int do_dev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
18 *d5a83139SPatrice Chotard {
19 *d5a83139SPatrice Chotard const char *name;
20 *d5a83139SPatrice Chotard int ret;
21 *d5a83139SPatrice Chotard
22 *d5a83139SPatrice Chotard switch (argc) {
23 *d5a83139SPatrice Chotard case 2:
24 *d5a83139SPatrice Chotard name = argv[1];
25 *d5a83139SPatrice Chotard ret = uclass_get_device_by_name(UCLASS_PINCTRL, name, &currdev);
26 *d5a83139SPatrice Chotard if (ret) {
27 *d5a83139SPatrice Chotard printf("Can't get the pin-controller: %s!\n", name);
28 *d5a83139SPatrice Chotard return CMD_RET_FAILURE;
29 *d5a83139SPatrice Chotard }
30 *d5a83139SPatrice Chotard case 1:
31 *d5a83139SPatrice Chotard if (!currdev) {
32 *d5a83139SPatrice Chotard printf("Pin-controller device is not set!\n");
33 *d5a83139SPatrice Chotard return CMD_RET_USAGE;
34 *d5a83139SPatrice Chotard }
35 *d5a83139SPatrice Chotard
36 *d5a83139SPatrice Chotard printf("dev: %s\n", currdev->name);
37 *d5a83139SPatrice Chotard }
38 *d5a83139SPatrice Chotard
39 *d5a83139SPatrice Chotard return CMD_RET_SUCCESS;
40 *d5a83139SPatrice Chotard }
41 *d5a83139SPatrice Chotard
show_pinmux(struct udevice * dev)42 *d5a83139SPatrice Chotard static int show_pinmux(struct udevice *dev)
43 *d5a83139SPatrice Chotard {
44 *d5a83139SPatrice Chotard char pin_name[PINNAME_SIZE];
45 *d5a83139SPatrice Chotard char pin_mux[PINMUX_SIZE];
46 *d5a83139SPatrice Chotard int pins_count;
47 *d5a83139SPatrice Chotard int i;
48 *d5a83139SPatrice Chotard int ret;
49 *d5a83139SPatrice Chotard
50 *d5a83139SPatrice Chotard pins_count = pinctrl_get_pins_count(dev);
51 *d5a83139SPatrice Chotard
52 *d5a83139SPatrice Chotard if (pins_count == -ENOSYS) {
53 *d5a83139SPatrice Chotard printf("Ops get_pins_count not supported\n");
54 *d5a83139SPatrice Chotard return pins_count;
55 *d5a83139SPatrice Chotard }
56 *d5a83139SPatrice Chotard
57 *d5a83139SPatrice Chotard for (i = 0; i < pins_count; i++) {
58 *d5a83139SPatrice Chotard ret = pinctrl_get_pin_name(dev, i, pin_name, PINNAME_SIZE);
59 *d5a83139SPatrice Chotard if (ret == -ENOSYS) {
60 *d5a83139SPatrice Chotard printf("Ops get_pin_name not supported\n");
61 *d5a83139SPatrice Chotard return ret;
62 *d5a83139SPatrice Chotard }
63 *d5a83139SPatrice Chotard
64 *d5a83139SPatrice Chotard ret = pinctrl_get_pin_muxing(dev, i, pin_mux, PINMUX_SIZE);
65 *d5a83139SPatrice Chotard if (ret) {
66 *d5a83139SPatrice Chotard printf("Ops get_pin_muxing error (%d)\n", ret);
67 *d5a83139SPatrice Chotard return ret;
68 *d5a83139SPatrice Chotard }
69 *d5a83139SPatrice Chotard
70 *d5a83139SPatrice Chotard printf("%-*s: %-*s\n", PINNAME_SIZE, pin_name,
71 *d5a83139SPatrice Chotard PINMUX_SIZE, pin_mux);
72 *d5a83139SPatrice Chotard }
73 *d5a83139SPatrice Chotard
74 *d5a83139SPatrice Chotard return 0;
75 *d5a83139SPatrice Chotard }
76 *d5a83139SPatrice Chotard
do_status(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])77 *d5a83139SPatrice Chotard static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
78 *d5a83139SPatrice Chotard {
79 *d5a83139SPatrice Chotard struct udevice *dev;
80 *d5a83139SPatrice Chotard int ret = CMD_RET_USAGE;
81 *d5a83139SPatrice Chotard
82 *d5a83139SPatrice Chotard if (currdev && (argc < 2 || strcmp(argv[1], "-a")))
83 *d5a83139SPatrice Chotard return show_pinmux(currdev);
84 *d5a83139SPatrice Chotard
85 *d5a83139SPatrice Chotard if (argc < 2 || strcmp(argv[1], "-a"))
86 *d5a83139SPatrice Chotard return ret;
87 *d5a83139SPatrice Chotard
88 *d5a83139SPatrice Chotard uclass_foreach_dev_probe(UCLASS_PINCTRL, dev) {
89 *d5a83139SPatrice Chotard /* insert a separator between each pin-controller display */
90 *d5a83139SPatrice Chotard printf("--------------------------\n");
91 *d5a83139SPatrice Chotard printf("%s:\n", dev->name);
92 *d5a83139SPatrice Chotard ret = show_pinmux(dev);
93 *d5a83139SPatrice Chotard if (ret < 0)
94 *d5a83139SPatrice Chotard printf("Can't display pin muxing for %s\n",
95 *d5a83139SPatrice Chotard dev->name);
96 *d5a83139SPatrice Chotard }
97 *d5a83139SPatrice Chotard
98 *d5a83139SPatrice Chotard return ret;
99 *d5a83139SPatrice Chotard }
100 *d5a83139SPatrice Chotard
do_list(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])101 *d5a83139SPatrice Chotard static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
102 *d5a83139SPatrice Chotard {
103 *d5a83139SPatrice Chotard struct udevice *dev;
104 *d5a83139SPatrice Chotard
105 *d5a83139SPatrice Chotard printf("| %-*.*s| %-*.*s| %s\n",
106 *d5a83139SPatrice Chotard LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
107 *d5a83139SPatrice Chotard LIMIT_DEVNAME, LIMIT_DEVNAME, "Driver",
108 *d5a83139SPatrice Chotard "Parent");
109 *d5a83139SPatrice Chotard
110 *d5a83139SPatrice Chotard uclass_foreach_dev_probe(UCLASS_PINCTRL, dev) {
111 *d5a83139SPatrice Chotard printf("| %-*.*s| %-*.*s| %s\n",
112 *d5a83139SPatrice Chotard LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name,
113 *d5a83139SPatrice Chotard LIMIT_DEVNAME, LIMIT_DEVNAME, dev->driver->name,
114 *d5a83139SPatrice Chotard dev->parent->name);
115 *d5a83139SPatrice Chotard }
116 *d5a83139SPatrice Chotard
117 *d5a83139SPatrice Chotard return CMD_RET_SUCCESS;
118 *d5a83139SPatrice Chotard }
119 *d5a83139SPatrice Chotard
120 *d5a83139SPatrice Chotard static cmd_tbl_t pinmux_subcmd[] = {
121 *d5a83139SPatrice Chotard U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""),
122 *d5a83139SPatrice Chotard U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
123 *d5a83139SPatrice Chotard U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""),
124 *d5a83139SPatrice Chotard };
125 *d5a83139SPatrice Chotard
do_pinmux(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])126 *d5a83139SPatrice Chotard static int do_pinmux(cmd_tbl_t *cmdtp, int flag, int argc,
127 *d5a83139SPatrice Chotard char * const argv[])
128 *d5a83139SPatrice Chotard {
129 *d5a83139SPatrice Chotard cmd_tbl_t *cmd;
130 *d5a83139SPatrice Chotard
131 *d5a83139SPatrice Chotard argc--;
132 *d5a83139SPatrice Chotard argv++;
133 *d5a83139SPatrice Chotard
134 *d5a83139SPatrice Chotard cmd = find_cmd_tbl(argv[0], pinmux_subcmd, ARRAY_SIZE(pinmux_subcmd));
135 *d5a83139SPatrice Chotard if (!cmd || argc > cmd->maxargs)
136 *d5a83139SPatrice Chotard return CMD_RET_USAGE;
137 *d5a83139SPatrice Chotard
138 *d5a83139SPatrice Chotard return cmd->cmd(cmdtp, flag, argc, argv);
139 *d5a83139SPatrice Chotard }
140 *d5a83139SPatrice Chotard
141 *d5a83139SPatrice Chotard U_BOOT_CMD(pinmux, CONFIG_SYS_MAXARGS, 1, do_pinmux,
142 *d5a83139SPatrice Chotard "show pin-controller muxing",
143 *d5a83139SPatrice Chotard "list - list UCLASS_PINCTRL devices\n"
144 *d5a83139SPatrice Chotard "pinmux dev [pincontroller-name] - select pin-controller device\n"
145 *d5a83139SPatrice Chotard "pinmux status [-a] - print pin-controller muxing [for all]\n"
146 *d5a83139SPatrice Chotard )
147