1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * board/renesas/draak/draak.c
4  *     This file is Draak board support.
5  *
6  * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
7  */
8 
9 #include <asm/io.h>
10 #include <asm/arch/rcar-mstp.h>
11 #include <asm/arch/renesas.h>
12 
13 #define HSUSB_MSTP704		BIT(4)	/* HSUSB */
14 
15 /* HSUSB block registers */
16 #define HSUSB_REG_LPSTS			0xE6590102
17 #define HSUSB_REG_LPSTS_SUSPM_NORMAL	BIT(14)
18 #define HSUSB_REG_UGCTRL2		0xE6590184
19 #define HSUSB_REG_UGCTRL2_USB0SEL	0x30
20 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI	0x10
21 
board_init(void)22 int board_init(void)
23 {
24 	/* USB1 pull-up */
25 	setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
26 
27 	/* Configure the HSUSB block */
28 	mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704);
29 	/* Choice USB0SEL */
30 	clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
31 			HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
32 	/* low power status */
33 	setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
34 
35 	return 0;
36 }
37