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