diff options
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 41e974cd91fe..c9b1baae5d8a 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -88,6 +88,8 @@ #define PMC_CPUPWRGOOD_TIMER 0xc8 #define PMC_CPUPWROFF_TIMER 0xcc +#define PMC_COREPWRGOOD_TIMER 0x3c +#define PMC_COREPWROFF_TIMER 0xe0 #define PMC_PWR_DET_VALUE 0xe4 @@ -2303,7 +2305,7 @@ static const struct tegra_pmc_regs tegra20_pmc_regs = { static void tegra20_pmc_init(struct tegra_pmc *pmc) { - u32 value; + u32 value, osc, pmu, off; /* Always enable CPU power request */ value = tegra_pmc_readl(pmc, PMC_CNTRL); @@ -2329,6 +2331,16 @@ static void tegra20_pmc_init(struct tegra_pmc *pmc) value = tegra_pmc_readl(pmc, PMC_CNTRL); value |= PMC_CNTRL_SYSCLK_OE; tegra_pmc_writel(pmc, value, PMC_CNTRL); + + /* program core timings which are applicable only for suspend state */ + if (pmc->suspend_mode != TEGRA_SUSPEND_NONE) { + osc = DIV_ROUND_UP(pmc->core_osc_time * 8192, 1000000); + pmu = DIV_ROUND_UP(pmc->core_pmu_time * 32768, 1000000); + off = DIV_ROUND_UP(pmc->core_off_time * 32768, 1000000); + tegra_pmc_writel(pmc, ((osc << 8) & 0xff00) | (pmu & 0xff), + PMC_COREPWRGOOD_TIMER); + tegra_pmc_writel(pmc, off, PMC_COREPWROFF_TIMER); + } } static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc, |