board/pine64/rockpro64_rk3399/rockpro64-rk3399.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2019 Vasily Khoruzhick <anarsoul@gmail.com>
 */

#include <common.h>
#include <dm.h>
#include <init.h>
#include <syscon.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/grf_rk3399.h>
#include <asm/arch-rockchip/hardware.h>

#define GRF_IO_VSEL_BT565_SHIFT 0
#define PMUGRF_CON0_VSEL_SHIFT 8

#ifdef CONFIG_MISC_INIT_R
static void setup_iodomain(void)
{
	struct rk3399_grf_regs *grf =
	    syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
	struct rk3399_pmugrf_regs *pmugrf =
	    syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);

	/* BT565 is in 1.8v domain */
	rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_BT565_SHIFT);

	/* Set GPIO1 1.8v/3.0v source select to PMU1830_VOL */
	rk_setreg(&pmugrf->soc_con0, 1 << PMUGRF_CON0_VSEL_SHIFT);
}

int rockchip_early_misc_init_r(void)
{
	setup_iodomain();

	return 0;
}

#endif