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rockchip: puma-rk3399: update board_init()

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The original initialisation code for board_init() was largely lifted
from the code on the EVB.  However, the RK3399-Q7 can do with a much
more concise init sequence.

This cleans up the board_init() by updating it to the essentials for
the RK3399-Q7 and getting rid of the accumulated cruft.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philipp Tomsich 2017-09-29 19:28:00 +02:00
parent 775bd78a11
commit 0b5e7aab0e
1 changed files with 4 additions and 32 deletions
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36
board/theobroma-systems/puma_rk3399/puma-rk3399.c
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@ -19,44 +19,16 @@ DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
struct udevice *pinctrl, *regulator;
int ret;
/*
* The PWM does 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 regulators.
* We need to call into regulators_enable_boot_on() again, as the call
* during SPL may have not included all regulators.
*/
ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
if (ret) {
debug("%s: Cannot find pinctrl device\n", __func__);
goto out;
}
ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
if (ret) {
debug("%s PWM2 pinctrl init fail!\n", __func__);
goto out;
}
/* rk3399 need to init vdd_center to get the correct output voltage */
ret = regulator_get_by_platname("vdd_center", &regulator);
ret = regulators_enable_boot_on(false);
if (ret)
debug("%s: Cannot get vdd_center regulator\n", __func__);
debug("%s: Cannot enable boot on regulator\n", __func__);
ret = regulator_get_by_platname("vcc5v0_host", &regulator);
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;
}