void spl_board_init(void)
{
int ret;
struct rk3399_cru *cru = rockchip_get_cru();
/*
* The RK3399 resets only 'almost all logic' (see also in the TRM
* "3.9.4 Global software reset"), when issuing a software reset.
* This may cause issues during boot-up for some configurations of
* the application software stack.
*
* To work around this, we test whether the last reset reason was
* a power-on reset and (if not) issue an overtemp-reset to reset
* the entire module.
*
* While this was previously fixed by modifying the various places
* that could generate a software reset (e.g. U-Boot's sysreset
* driver, the ATF or Linux), we now have it here to ensure that
* we no longer have to track this through the various components.
*/
if (cru->glb_rst_st != 0)
rk3399_force_power_on_reset();
/*
* Turning the eMMC and SPI back on (if disabled via the Qseven
* BIOS_ENABLE) signal is done through a always-on regulator).
*/
ret = regulators_enable_boot_on(false);
if (ret)
debug("%s: Cannot enable boot on regulator\n", __func__);
preloader_console_init();
}
int board_init(void)
{
struct udevice *pinctrl, *regulator;
int ret;
/*
* The PWM do not have decicated interrupt number in dts and can
* not get periph_id by pinctrl framework, so let's init them here.
* The PWM2 and PWM3 are for pwm regulater.
*/
ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
if (ret) {
debug("%s: Cannot find pinctrl device\n", __func__);
goto out;
}
/* Enable pwm0 for panel backlight */
ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM0);
if (ret) {
debug("%s PWM0 pinctrl init fail! (ret=%d)\n", __func__, ret);
goto out;
}
ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
if (ret) {
debug("%s PWM2 pinctrl init fail!\n", __func__);
goto out;
}
ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM3);
if (ret) {
debug("%s PWM3 pinctrl init fail!\n", __func__);
goto out;
}
ret = regulators_enable_boot_on(false);
if (ret)
debug("%s: Cannot enable boot on regulator\n", __func__);
ret = regulator_get_by_platname("vcc5v0_host", ®ulator);
if (ret) {
debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
goto out;
}
ret = regulator_set_enable(regulator, true);
if (ret) {
debug("%s vcc5v0-host-en set fail!\n", __func__);
goto out;
}
out:
return 0;
}
int exynos_power_init(void)
{
struct udevice *dev;
int ret;
ret = pmic_get("max77686", &dev);
if (!ret) {
/* TODO([email protected]): Move into the clock/pmic API */
ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
MAX77686_32KHCP_EN);
if (ret)
return ret;
ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
if (ret)
return ret;
} else {
ret = pmic_get("s5m8767-pmic", &dev);
/* TODO([email protected]): Use driver model to access clock */
#ifdef CONFIG_PMIC_S5M8767
if (!ret)
s5m8767_enable_32khz_cp(dev);
#endif
}
if (ret == -ENODEV)
return 0;
ret = regulators_enable_boot_on(false);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_mif", 1100000);
if (ret)
return ret;
/*
* This would normally be 1.3V, but since we are running slowly 1.1V
* is enough. For spring it helps reduce CPU temperature and avoid
* hangs with the case open. 1.1V is minimum voltage borderline for
* chained bootloaders.
*/
ret = exynos_set_regulator("vdd_arm", 1100000);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_int", 1012500);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_g3d", 1200000);
if (ret)
return ret;
return 0;
}
int board_init(void)
{
int ret;
/*
* We need to call into regulators_enable_boot_on() again, as the call
* during SPL may have not included all regulators.
*/
ret = regulators_enable_boot_on(false);
if (ret)
debug("%s: Cannot enable boot on regulator\n", __func__);
return 0;
}
static int veyron_init(void)
{
struct udevice *dev;
struct clk clk;
int ret;
ret = regulator_get_by_platname("vdd_arm", &dev);
if (ret) {
debug("Cannot set regulator name\n");
return ret;
}
/* Slowly raise to max CPU voltage to prevent overshoot */
ret = regulator_set_value(dev, 1200000);
if (ret)
return ret;
udelay(175); /* Must wait for voltage to stabilize, 2mV/us */
ret = regulator_set_value(dev, 1400000);
if (ret)
return ret;
udelay(100); /* Must wait for voltage to stabilize, 2mV/us */
ret = rockchip_get_clk(&clk.dev);
if (ret)
return ret;
clk.id = PLL_APLL;
ret = clk_set_rate(&clk, 1800000000);
if (IS_ERR_VALUE(ret))
return ret;
ret = regulator_get_by_platname("vcc33_sd", &dev);
if (ret) {
debug("Cannot get regulator name\n");
return ret;
}
ret = regulator_set_value(dev, 3300000);
if (ret)
return ret;
ret = regulators_enable_boot_on(false);
if (ret) {
debug("%s: Cannot enable boot on regulators\n", __func__);
return ret;
}
return 0;
}
int exynos_power_init(void)
{
struct udevice *dev;
int ret;
ret = pmic_get("max77686", &dev);
if (!ret) {
/* TODO([email protected]): Move into the clock/pmic API */
ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
MAX77686_32KHCP_EN);
if (ret)
return ret;
ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
if (ret)
return ret;
} else {
ret = pmic_get("s5m8767-pmic", &dev);
/* TODO([email protected]): Use driver model to access clock */
#ifdef CONFIG_PMIC_S5M8767
if (!ret)
s5m8767_enable_32khz_cp(dev);
#endif
}
if (ret == -ENODEV)
return 0;
ret = regulators_enable_boot_on(false);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_mif", 1100000);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_arm", 1300000);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_int", 1012500);
if (ret)
return ret;
ret = exynos_set_regulator("vdd_g3d", 1200000);
if (ret)
return ret;
return 0;
}