/* ------------------------------------------------------------------------*//**
* @FUNCTION voltdm_por_nominal_voltage_get
* @BRIEF return the nominal voltage to be supplied to a
* voltage domain, as defined in Data Manual.
* @RETURNS nominal voltage in micro-volt (> 0) in case of success
* OMAPCONF_ERR_CPU
* OMAPCONF_ERR_ARG
* @param[in] voltdm: voltage domain name (as defined in voltdm.h)
* @param[in] opp: OPP provided as a string (as defined in opp.h)
* @DESCRIPTION return the nominal voltage to be supplied to a
* voltage domain, as defined in Data Manual.
* Not read from the platform, but from internal tables.
*//*------------------------------------------------------------------------ */
int voltdm_por_nominal_voltage_get(const char *voltdm, const char *opp)
{
int vdd_id, opp_id;
CHECK_NULL_ARG(voltdm, OMAPCONF_ERR_ARG);
voltdm_init();
vdd_id = voltdm_s2id(voltdm);
if (vdd_id < 0)
return OMAPCONF_ERR_ARG;
opp_id = opp_s2id(opp);
if (opp_id < 0)
return opp_id;
if (cpu_is_omap44xx()) {
return v2uv(voltdm44xx_por_nominal_voltage_get(
(voltdm44xx_id) vdd_id, (opp44xx_id) opp_id));
} else if (cpu_is_omap54xx()) {
return v2uv(voltdm54xx_por_nominal_voltage_get(
(voltdm54xx_id) vdd_id, (opp54xx_id) opp_id));
} else {
fprintf(stderr,
"omapconf: %s(): cpu not supported!!!\n", __func__);
return OMAPCONF_ERR_CPU;
}
}
/* ------------------------------------------------------------------------*//**
* @FUNCTION voltdm54xx_opp_get
* @BRIEF find the current voltage domain OPP
* @RETURNS valid OPP ID in case of success
* OPP54XX_ID_MAX in case of error
* @param[in] id: voltage domain ID
* @DESCRIPTION find the current voltage domain OPP
*//*------------------------------------------------------------------------ */
opp54xx_id voltdm54xx_opp_get(voltdm54xx_id id)
{
opp54xx_id opp_id;
double volt = 0.0, volt_por = 0.0;
CHECK_CPU(54xx, OPP54XX_ID_MAX);
CHECK_ARG_LESS_THAN(id, VDD54XX_ID_MAX, OPP54XX_ID_MAX);
if (id == VDD54XX_WKUP) {
/* Only 1 OPP for WKUP voltage domain */
opp_id = OPP54XX_NOM;
} else {
/*
* In VDD_MM there are 3 independent modules (GPU, IVA, DSP)
* that may be running at different clock rates.
* Furthermore, these modules may or may not be running, so
* module's clock rate may not be relevant.
* Use nominal voltage instead.
*/
volt = voltdm54xx_nominal_voltage_get(id);
if (volt < 0.0)
return OPP54XX_ID_MAX;
dprintf("%s(%s): nominal voltage is %lfV\n", __func__,
voltdm54xx_name_get(id), volt);
for (opp_id = OPP54XX_DPLL_CASC; opp_id < OPP54XX_ID_MAX;
opp_id++) {
volt_por = voltdm54xx_por_nominal_voltage_get(
id, opp_id);
if (volt_por < 0.0)
return OPP54XX_ID_MAX;
dprintf("%s(%s): POR nominal voltage for %s is %lfV\n",
__func__, voltdm54xx_name_get(id),
opp54xx_name_get(opp_id), volt_por);
if (volt == volt_por)
break;
}
}
#ifdef VOLTDM54XX_DEBUG
if (opp_id != OPP54XX_ID_MAX) {
dprintf("%s(%s): OPP found: %s\n", __func__,
voltdm54xx_name_get(id), opp54xx_name_get(opp_id));
} else {
dprintf("%s(%s): OPP not found!\n", __func__,
voltdm54xx_name_get(id));
}
#endif
return opp_id;
}
