C++ (Cpp) mxs_is_batt_ready Examples

Example #1

File: spl_power_init.c Project: Bedoustani/parallella-uboot

static void mxs_power_enable_4p2(void)
{
	struct mxs_power_regs *power_regs =
		(struct mxs_power_regs *)MXS_POWER_BASE;
	uint32_t vdddctrl, vddactrl, vddioctrl;
	uint32_t tmp;

	vdddctrl = readl(&power_regs->hw_power_vdddctrl);
	vddactrl = readl(&power_regs->hw_power_vddactrl);
	vddioctrl = readl(&power_regs->hw_power_vddioctrl);

	setbits_le32(&power_regs->hw_power_vdddctrl,
		POWER_VDDDCTRL_DISABLE_FET | POWER_VDDDCTRL_ENABLE_LINREG |
		POWER_VDDDCTRL_PWDN_BRNOUT);

	setbits_le32(&power_regs->hw_power_vddactrl,
		POWER_VDDACTRL_DISABLE_FET | POWER_VDDACTRL_ENABLE_LINREG |
		POWER_VDDACTRL_PWDN_BRNOUT);

	setbits_le32(&power_regs->hw_power_vddioctrl,
		POWER_VDDIOCTRL_DISABLE_FET | POWER_VDDIOCTRL_PWDN_BRNOUT);

	mxs_power_init_4p2_params();
	mxs_power_init_4p2_regulator();

	/* Shutdown battery (none present) */
	if (!mxs_is_batt_ready()) {
		clrbits_le32(&power_regs->hw_power_dcdc4p2,
				POWER_DCDC4P2_BO_MASK);
		writel(POWER_CTRL_DCDC4P2_BO_IRQ,
				&power_regs->hw_power_ctrl_clr);
		writel(POWER_CTRL_ENIRQ_DCDC4P2_BO,
				&power_regs->hw_power_ctrl_clr);
	}

	mxs_power_init_dcdc_4p2_source();

	writel(vdddctrl, &power_regs->hw_power_vdddctrl);
	early_delay(20);
	writel(vddactrl, &power_regs->hw_power_vddactrl);
	early_delay(20);
	writel(vddioctrl, &power_regs->hw_power_vddioctrl);

	/*
	 * Check if FET is enabled on either powerout and if so,
	 * disable load.
	 */
	tmp = 0;
	tmp |= !(readl(&power_regs->hw_power_vdddctrl) &
			POWER_VDDDCTRL_DISABLE_FET);
	tmp |= !(readl(&power_regs->hw_power_vddactrl) &
			POWER_VDDACTRL_DISABLE_FET);
	tmp |= !(readl(&power_regs->hw_power_vddioctrl) &
			POWER_VDDIOCTRL_DISABLE_FET);
	if (tmp)
		writel(POWER_CHARGE_ENABLE_LOAD,
			&power_regs->hw_power_charge_clr);
}

Example #2

File: spl_power_init.c Project: BWhitten/u-boot

/**
 * mxs_power_configure_power_source() - Configure power block source
 *
 * This function is the core of the power configuration logic. The function
 * selects the power block input source and configures the whole power block
 * accordingly. After the configuration is complete and the system is stable
 * again, the function switches the CPU clock source back to PLL. Finally,
 * the function switches the voltage rails to DC-DC converter.
 */
static void mxs_power_configure_power_source(void)
{
	int batt_ready, batt_good;
	struct mxs_power_regs *power_regs =
		(struct mxs_power_regs *)MXS_POWER_BASE;
	struct mxs_lradc_regs *lradc_regs =
		(struct mxs_lradc_regs *)MXS_LRADC_BASE;

	debug("SPL: Configuring power source\n");

	mxs_power_setup_dcdc_clocksource();
	mxs_src_power_init();

	if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
		batt_ready = mxs_is_batt_ready();
		if (batt_ready) {
			/* 5V source detected, good battery detected. */
			mxs_batt_boot();
		} else {
			batt_good = mxs_is_batt_good();
			if (!batt_good) {
				/* 5V source detected, bad battery detected. */
				writel(LRADC_CONVERSION_AUTOMATIC,
					&lradc_regs->hw_lradc_conversion_clr);
				clrbits_le32(&power_regs->hw_power_battmonitor,
					POWER_BATTMONITOR_BATT_VAL_MASK);
			}
			mxs_5v_boot();
		}
	} else {
		/* 5V not detected, booting from battery. */
		mxs_batt_boot();
	}

	/*
	 * TODO: Do not switch CPU clock to PLL if we are VDD5V is sourced
	 * from USB VBUS
	 */
	mxs_power_clock2pll();

	mxs_init_batt_bo();

	mxs_switch_vddd_to_dcdc_source();

#ifdef CONFIG_MX23
	/* Fire up the VDDMEM LinReg now that we're all set. */
	debug("SPL: Enabling mx23 VDDMEM linear regulator\n");
	writel(POWER_VDDMEMCTRL_ENABLE_LINREG | POWER_VDDMEMCTRL_ENABLE_ILIMIT,
		&power_regs->hw_power_vddmemctrl);
#endif
}

Example #3

File: spl_power_init.c Project: Bedoustani/parallella-uboot

static void mxs_power_configure_power_source(void)
{
	int batt_ready, batt_good;
	struct mxs_power_regs *power_regs =
		(struct mxs_power_regs *)MXS_POWER_BASE;
	struct mxs_lradc_regs *lradc_regs =
		(struct mxs_lradc_regs *)MXS_LRADC_BASE;

	mxs_src_power_init();

	if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
		batt_ready = mxs_is_batt_ready();
		if (batt_ready) {
			/* 5V source detected, good battery detected. */
			mxs_batt_boot();
		} else {
			batt_good = mxs_is_batt_good();
			if (!batt_good) {
				/* 5V source detected, bad battery detected. */
				writel(LRADC_CONVERSION_AUTOMATIC,
					&lradc_regs->hw_lradc_conversion_clr);
				clrbits_le32(&power_regs->hw_power_battmonitor,
					POWER_BATTMONITOR_BATT_VAL_MASK);
			}
			mxs_5v_boot();
		}
	} else {
		/* 5V not detected, booting from battery. */
		mxs_batt_boot();
	}

	mxs_power_clock2pll();

	mxs_init_batt_bo();

	mxs_switch_vddd_to_dcdc_source();
}