question: mx7ulp - LDO_ENABLED_MODE

Hi Fabio,

I am trying to enable LDO in an imx7ulp based board but somehow the board locks up as soon I write to PMC1_RUN (using the init_ldo_mode sequence).

I think it is interesting that bit PMC0_CTRL_PMC1ON is already set so I am wondering if you think it is possible - in your experience- that ROM might have already configured LDO? or was this also the case - this bit already set- when you tested the feature?

I also noticed that if I dont execute the init_ldo_mode sequence and just check for the LODEN bit [see snipet below], this is already set which too seems strange.

any suggestions or thoughts?

thanks in advance!

Jorge

#define PMC0_BASE_ADDR 0x410a1000 #define PMC0_CTRL 0x28 #define PMC0_CTRL_LDOEN BIT(31)

static bool ldo_mode_is_enabled(void) { unsigned int reg;

reg = readl(PMC0_BASE_ADDR + PMC0_CTRL); if (reg & PMC0_CTRL_LDOEN) return true; else return false; }