C++ (Cpp) palmas_mmc1_poweron_ldo示例

示例#1

文件： evm.c 项目： jiapei100/u-boot

void board_mmc_poweron_ldo(uint voltage)
{
	if (board_is_dra71x_evm()) {
		if (voltage == LDO_VOLT_3V0)
			voltage = 0x19;
		else if (voltage == LDO_VOLT_1V8)
			voltage = 0xa;
		lp873x_mmc1_poweron_ldo(voltage);
	} else if (board_is_dra76x_evm()) {
		palmas_mmc1_poweron_ldo(LDO4_VOLTAGE, LDO4_CTRL, voltage);
	} else {
		palmas_mmc1_poweron_ldo(LDO1_VOLTAGE, LDO1_CTRL, voltage);
	}
}

示例#2

文件： omap_hsmmc.c 项目： DeviceSolutions/u-boot-opal6

static void omap5_pbias_config(struct mmc *mmc)
{
	u32 value = 0;

	value = readl((*ctrl)->control_pbias);
	value &= ~SDCARD_PWRDNZ;
	writel(value, (*ctrl)->control_pbias);
	udelay(10); /* wait 10 us */
	value &= ~SDCARD_BIAS_PWRDNZ;
	writel(value, (*ctrl)->control_pbias);

	palmas_mmc1_poweron_ldo();

	value = readl((*ctrl)->control_pbias);
	value |= SDCARD_BIAS_PWRDNZ;
	writel(value, (*ctrl)->control_pbias);
	udelay(150); /* wait 150 us */
	value |= SDCARD_PWRDNZ;
	writel(value, (*ctrl)->control_pbias);
	udelay(150); /* wait 150 us */
}