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// SPDX-License-Identifier: GPL-2.0+
/*
* Power Domain test commands
*
* Copyright (C) 2020 Texas Instruments Incorporated, <www.ti.com>
*/
#include <common.h>
#include <command.h>
#include <dm.h>
#include <k3-dev.h>
static const struct udevice_id ti_pd_of_match[] = {
{ .compatible = "ti,sci-pm-domain" },
{ /* sentinel */ }
};
static struct ti_k3_pd_platdata *ti_pd_find_data(void)
{
struct udevice *dev;
int i = 0;
while (1) {
uclass_get_device(UCLASS_POWER_DOMAIN, i++, &dev);
if (!dev)
return NULL;
if (device_is_compatible(dev,
ti_pd_of_match[0].compatible))
return dev_get_priv(dev);
}
return NULL;
}
static void dump_lpsc(struct ti_k3_pd_platdata *data, struct ti_pd *pd)
{
int i;
struct ti_lpsc *lpsc;
u8 state;
static const char * const lpsc_states[] = {
"swrstdis", "syncrst", "disable", "enable", "autosleep",
"autowake", "unknown",
};
for (i = 0; i < data->num_lpsc; i++) {
lpsc = &data->lpsc[i];
if (lpsc->pd != pd)
continue;
state = lpsc_get_state(lpsc);
if (state > ARRAY_SIZE(lpsc_states))
state = ARRAY_SIZE(lpsc_states) - 1;
printf(" LPSC%d: state=%s, usecount=%d\n",
lpsc->id, lpsc_states[state], lpsc->usecount);
}
}
static void dump_pd(struct ti_k3_pd_platdata *data, struct ti_psc *psc)
{
int i;
struct ti_pd *pd;
u8 state;
static const char * const pd_states[] = {
"off", "on", "unknown"
};
for (i = 0; i < data->num_pd; i++) {
pd = &data->pd[i];
if (pd->psc != psc)
continue;
state = ti_pd_state(pd);
if (state > ARRAY_SIZE(pd_states))
state = ARRAY_SIZE(pd_states) - 1;
printf(" PD%d: state=%s, usecount=%d:\n",
pd->id, pd_states[state], pd->usecount);
dump_lpsc(data, pd);
}
}
static void dump_psc(struct ti_k3_pd_platdata *data)
{
int i;
struct ti_psc *psc;
for (i = 0; i < data->num_psc; i++) {
psc = &data->psc[i];
printf("PSC%d [%p]:\n", psc->id, psc->base);
dump_pd(data, psc);
}
}
static int do_pd_dump(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct ti_k3_pd_platdata *data;
data = ti_pd_find_data();
if (!data)
return CMD_RET_FAILURE;
dump_psc(data);
return 0;
}
static int do_pd_endis(int argc, char *const argv[], u8 state)
{
u32 psc_id;
u32 lpsc_id;
int i;
struct ti_k3_pd_platdata *data;
struct ti_lpsc *lpsc;
int ret;
if (argc < 3)
return CMD_RET_FAILURE;
data = ti_pd_find_data();
if (!data)
return CMD_RET_FAILURE;
psc_id = dectoul(argv[1], NULL);
lpsc_id = dectoul(argv[2], NULL);
for (i = 0; i < data->num_lpsc; i++) {
lpsc = &data->lpsc[i];
if (lpsc->pd->psc->id != psc_id)
continue;
if (lpsc->id != lpsc_id)
continue;
printf("%s pd [PSC:%d,LPSC:%d]...\n",
state == MDSTAT_STATE_ENABLE ? "Enabling" : "Disabling",
psc_id, lpsc_id);
ret = ti_lpsc_transition(lpsc, state);
if (ret)
return CMD_RET_FAILURE;
else
return 0;
}
printf("No matching psc/lpsc found.\n");
return CMD_RET_FAILURE;
}
static int do_pd_enable(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return do_pd_endis(argc, argv, MDSTAT_STATE_ENABLE);
}
static int do_pd_disable(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return do_pd_endis(argc, argv, MDSTAT_STATE_SWRSTDISABLE);
}
static struct cmd_tbl cmd_pd[] = {
U_BOOT_CMD_MKENT(dump, 1, 0, do_pd_dump, "", ""),
U_BOOT_CMD_MKENT(enable, 3, 0, do_pd_enable, "", ""),
U_BOOT_CMD_MKENT(disable, 3, 0, do_pd_disable, "", ""),
};
static int ti_do_pd(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
struct cmd_tbl *c;
argc--;
argv++;
c = find_cmd_tbl(argv[0], cmd_pd, ARRAY_SIZE(cmd_pd));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
U_BOOT_LONGHELP(pd,
"dump - show power domain status\n"
"enable [psc] [lpsc] - enable power domain\n"
"disable [psc] [lpsc] - disable power domain\n");
U_BOOT_CMD(pd, 4, 1, ti_do_pd,
"TI power domain control", pd_help_text
);
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