Tero Kristo | f95d3be | 2021-06-11 11:45:16 +0300 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Power Domain test commands |
| 4 | * |
| 5 | * Copyright (C) 2020 Texas Instruments Incorporated, <www.ti.com> |
| 6 | */ |
| 7 | |
| 8 | #include <common.h> |
| 9 | #include <command.h> |
| 10 | #include <dm.h> |
| 11 | #include <k3-dev.h> |
| 12 | |
| 13 | static const struct udevice_id ti_pd_of_match[] = { |
| 14 | { .compatible = "ti,sci-pm-domain" }, |
| 15 | { /* sentinel */ } |
| 16 | }; |
| 17 | |
| 18 | static struct ti_k3_pd_platdata *ti_pd_find_data(void) |
| 19 | { |
| 20 | struct udevice *dev; |
| 21 | int i = 0; |
| 22 | |
| 23 | while (1) { |
| 24 | uclass_get_device(UCLASS_POWER_DOMAIN, i++, &dev); |
| 25 | if (!dev) |
| 26 | return NULL; |
| 27 | |
| 28 | if (device_is_compatible(dev, |
| 29 | ti_pd_of_match[0].compatible)) |
| 30 | return dev_get_priv(dev); |
| 31 | } |
| 32 | |
| 33 | return NULL; |
| 34 | } |
| 35 | |
| 36 | static void dump_lpsc(struct ti_k3_pd_platdata *data, struct ti_pd *pd) |
| 37 | { |
| 38 | int i; |
| 39 | struct ti_lpsc *lpsc; |
| 40 | u8 state; |
| 41 | static const char * const lpsc_states[] = { |
| 42 | "swrstdis", "syncrst", "disable", "enable", "autosleep", |
| 43 | "autowake", "unknown", |
| 44 | }; |
| 45 | |
| 46 | for (i = 0; i < data->num_lpsc; i++) { |
| 47 | lpsc = &data->lpsc[i]; |
| 48 | if (lpsc->pd != pd) |
| 49 | continue; |
| 50 | state = lpsc_get_state(lpsc); |
| 51 | if (state > ARRAY_SIZE(lpsc_states)) |
| 52 | state = ARRAY_SIZE(lpsc_states) - 1; |
| 53 | printf(" LPSC%d: state=%s, usecount=%d\n", |
| 54 | lpsc->id, lpsc_states[state], lpsc->usecount); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | static void dump_pd(struct ti_k3_pd_platdata *data, struct ti_psc *psc) |
| 59 | { |
| 60 | int i; |
| 61 | struct ti_pd *pd; |
| 62 | u8 state; |
| 63 | static const char * const pd_states[] = { |
| 64 | "off", "on", "unknown" |
| 65 | }; |
| 66 | |
| 67 | for (i = 0; i < data->num_pd; i++) { |
| 68 | pd = &data->pd[i]; |
| 69 | if (pd->psc != psc) |
| 70 | continue; |
| 71 | state = ti_pd_state(pd); |
| 72 | if (state > ARRAY_SIZE(pd_states)) |
| 73 | state = ARRAY_SIZE(pd_states) - 1; |
| 74 | printf(" PD%d: state=%s, usecount=%d:\n", |
| 75 | pd->id, pd_states[state], pd->usecount); |
| 76 | dump_lpsc(data, pd); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | static void dump_psc(struct ti_k3_pd_platdata *data) |
| 81 | { |
| 82 | int i; |
| 83 | struct ti_psc *psc; |
| 84 | |
| 85 | for (i = 0; i < data->num_psc; i++) { |
| 86 | psc = &data->psc[i]; |
| 87 | printf("PSC%d [%p]:\n", psc->id, psc->base); |
| 88 | dump_pd(data, psc); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | static int do_pd_dump(struct cmd_tbl *cmdtp, int flag, int argc, |
| 93 | char *const argv[]) |
| 94 | { |
| 95 | struct ti_k3_pd_platdata *data; |
| 96 | |
| 97 | data = ti_pd_find_data(); |
| 98 | if (!data) |
| 99 | return CMD_RET_FAILURE; |
| 100 | |
| 101 | dump_psc(data); |
| 102 | |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | static int do_pd_endis(int argc, char *const argv[], u8 state) |
| 107 | { |
| 108 | u32 psc_id; |
| 109 | u32 lpsc_id; |
| 110 | int i; |
| 111 | struct ti_k3_pd_platdata *data; |
| 112 | struct ti_lpsc *lpsc; |
| 113 | int ret; |
| 114 | |
| 115 | if (argc < 3) |
| 116 | return CMD_RET_FAILURE; |
| 117 | |
| 118 | data = ti_pd_find_data(); |
| 119 | if (!data) |
| 120 | return CMD_RET_FAILURE; |
| 121 | |
Simon Glass | ff9b903 | 2021-07-24 09:03:30 -0600 | [diff] [blame] | 122 | psc_id = dectoul(argv[1], NULL); |
| 123 | lpsc_id = dectoul(argv[2], NULL); |
Tero Kristo | f95d3be | 2021-06-11 11:45:16 +0300 | [diff] [blame] | 124 | |
| 125 | for (i = 0; i < data->num_lpsc; i++) { |
| 126 | lpsc = &data->lpsc[i]; |
| 127 | if (lpsc->pd->psc->id != psc_id) |
| 128 | continue; |
| 129 | if (lpsc->id != lpsc_id) |
| 130 | continue; |
| 131 | printf("%s pd [PSC:%d,LPSC:%d]...\n", |
| 132 | state == MDSTAT_STATE_ENABLE ? "Enabling" : "Disabling", |
| 133 | psc_id, lpsc_id); |
| 134 | ret = ti_lpsc_transition(lpsc, state); |
| 135 | if (ret) |
| 136 | return CMD_RET_FAILURE; |
| 137 | else |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | printf("No matching psc/lpsc found.\n"); |
| 142 | |
| 143 | return CMD_RET_FAILURE; |
| 144 | } |
| 145 | |
| 146 | static int do_pd_enable(struct cmd_tbl *cmdtp, int flag, int argc, |
| 147 | char *const argv[]) |
| 148 | { |
| 149 | return do_pd_endis(argc, argv, MDSTAT_STATE_ENABLE); |
| 150 | } |
| 151 | |
| 152 | static int do_pd_disable(struct cmd_tbl *cmdtp, int flag, int argc, |
| 153 | char *const argv[]) |
| 154 | { |
| 155 | return do_pd_endis(argc, argv, MDSTAT_STATE_SWRSTDISABLE); |
| 156 | } |
| 157 | |
| 158 | static struct cmd_tbl cmd_pd[] = { |
| 159 | U_BOOT_CMD_MKENT(dump, 1, 0, do_pd_dump, "", ""), |
| 160 | U_BOOT_CMD_MKENT(enable, 3, 0, do_pd_enable, "", ""), |
| 161 | U_BOOT_CMD_MKENT(disable, 3, 0, do_pd_disable, "", ""), |
| 162 | }; |
| 163 | |
| 164 | static int ti_do_pd(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]) |
| 165 | { |
| 166 | struct cmd_tbl *c; |
| 167 | |
| 168 | argc--; |
| 169 | argv++; |
| 170 | |
| 171 | c = find_cmd_tbl(argv[0], cmd_pd, ARRAY_SIZE(cmd_pd)); |
| 172 | if (c) |
| 173 | return c->cmd(cmdtp, flag, argc, argv); |
| 174 | else |
| 175 | return CMD_RET_USAGE; |
| 176 | } |
| 177 | |
| 178 | U_BOOT_CMD(pd, 4, 1, ti_do_pd, |
| 179 | "TI power domain control", |
Simon Glass | 5d6ee9e | 2023-02-05 15:40:56 -0700 | [diff] [blame] | 180 | #if IS_ENABLED(CONFIG_SYS_LONGHELP) |
Tero Kristo | f95d3be | 2021-06-11 11:45:16 +0300 | [diff] [blame] | 181 | "dump - show power domain status\n" |
| 182 | "enable [psc] [lpsc] - enable power domain\n" |
| 183 | "disable [psc] [lpsc] - disable power domain\n" |
| 184 | #endif |
| 185 | ); |