1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
4  */
5 
6 #include <common.h>
7 #include <syscon.h>
8 #include <asm/io.h>
9 #include <asm/arch-rockchip/clock.h>
10 #include <asm/arch-rockchip/grf_rk3399.h>
11 #include <asm/arch-rockchip/hardware.h>
12 #include <linux/bitops.h>
13 
14 #ifdef CONFIG_MISC_INIT_R
misc_init_r(void)15 int misc_init_r(void)
16 {
17 	struct rk3399_grf_regs *grf =
18 	    syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
19 
20 	/**
21 	 * Some SSD's to work on rock960 would require explicit
22 	 * domain voltage change, so BT565 is in 1.8v domain
23 	 */
24 	rk_setreg(&grf->io_vsel, BIT(0));
25 
26 	return 0;
27 }
28 #endif
29