C++ (Cpp) mxs_power_enable_4p2 Examples

Example #1

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

/**
 * mxs_batt_boot() - Configure the power block to boot from battery input
 *
 * This function configures the power block to boot from the battery voltage
 * supply.
 */
static void mxs_batt_boot(void)
{
	struct mxs_power_regs *power_regs =
		(struct mxs_power_regs *)MXS_POWER_BASE;

	debug("SPL: Configuring power block to boot from battery\n");

	clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_PWDN_5VBRNOUT);
	clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_ENABLE_DCDC);

	clrbits_le32(&power_regs->hw_power_dcdc4p2,
			POWER_DCDC4P2_ENABLE_DCDC | POWER_DCDC4P2_ENABLE_4P2);
	writel(POWER_CHARGE_ENABLE_LOAD, &power_regs->hw_power_charge_clr);

	/* 5V to battery handoff. */
	setbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_DCDC_XFER);
	early_delay(30);
	clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_DCDC_XFER);

	writel(POWER_CTRL_ENIRQ_DCDC4P2_BO, &power_regs->hw_power_ctrl_clr);

	clrsetbits_le32(&power_regs->hw_power_minpwr,
			POWER_MINPWR_HALFFETS, POWER_MINPWR_DOUBLE_FETS);

	mxs_power_set_linreg();

	clrbits_le32(&power_regs->hw_power_vdddctrl,
		POWER_VDDDCTRL_DISABLE_FET | POWER_VDDDCTRL_ENABLE_LINREG);

	clrbits_le32(&power_regs->hw_power_vddactrl,
		POWER_VDDACTRL_DISABLE_FET | POWER_VDDACTRL_ENABLE_LINREG);

	clrbits_le32(&power_regs->hw_power_vddioctrl,
		POWER_VDDIOCTRL_DISABLE_FET);

	setbits_le32(&power_regs->hw_power_5vctrl,
		POWER_5VCTRL_PWD_CHARGE_4P2_MASK);

	setbits_le32(&power_regs->hw_power_5vctrl,
		POWER_5VCTRL_ENABLE_DCDC);

	clrsetbits_le32(&power_regs->hw_power_5vctrl,
		POWER_5VCTRL_CHARGE_4P2_ILIMIT_MASK,
		0x8 << POWER_5VCTRL_CHARGE_4P2_ILIMIT_OFFSET);

	mxs_power_enable_4p2();
}

Example #2

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

static void mxs_boot_valid_5v(void)
{
	struct mxs_power_regs *power_regs =
		(struct mxs_power_regs *)MXS_POWER_BASE;

	/*
	 * Use VBUSVALID level instead of VDD5V_GT_VDDIO level to trigger a 5V
	 * disconnect event. FIXME
	 */
	writel(POWER_5VCTRL_VBUSVALID_5VDETECT,
		&power_regs->hw_power_5vctrl_set);

	/* Configure polarity to check for 5V disconnection. */
	writel(POWER_CTRL_POLARITY_VBUSVALID |
		POWER_CTRL_POLARITY_VDD5V_GT_VDDIO,
		&power_regs->hw_power_ctrl_clr);

	writel(POWER_CTRL_VBUS_VALID_IRQ | POWER_CTRL_VDD5V_GT_VDDIO_IRQ,
		&power_regs->hw_power_ctrl_clr);

	mxs_power_enable_4p2();
}