1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2012 Samsung Electronics
4  * Donghwa Lee <dh09.lee@samsung.com>
5  */
6 
7 #include <common.h>
8 #include <asm/io.h>
9 #include <asm/arch/system.h>
10 
exynos5_set_usbhost_mode(unsigned int mode)11 static void exynos5_set_usbhost_mode(unsigned int mode)
12 {
13 	struct exynos5_sysreg *sysreg =
14 		(struct exynos5_sysreg *)samsung_get_base_sysreg();
15 
16 	/* Setting USB20PHY_CONFIG register to USB 2.0 HOST link */
17 	if (mode == USB20_PHY_CFG_HOST_LINK_EN) {
18 		setbits_le32(&sysreg->usb20phy_cfg,
19 				USB20_PHY_CFG_HOST_LINK_EN);
20 	} else {
21 		clrbits_le32(&sysreg->usb20phy_cfg,
22 				USB20_PHY_CFG_HOST_LINK_EN);
23 	}
24 }
25 
set_usbhost_mode(unsigned int mode)26 void set_usbhost_mode(unsigned int mode)
27 {
28 	if (cpu_is_exynos5())
29 		exynos5_set_usbhost_mode(mode);
30 }
31 
exynos4_set_system_display(void)32 static void exynos4_set_system_display(void)
33 {
34 	struct exynos4_sysreg *sysreg =
35 	    (struct exynos4_sysreg *)samsung_get_base_sysreg();
36 	unsigned int cfg = 0;
37 
38 	/*
39 	 * system register path set
40 	 * 0: MIE/MDNIE
41 	 * 1: FIMD Bypass
42 	 */
43 	cfg = readl(&sysreg->display_ctrl);
44 	cfg |= (1 << 1);
45 	writel(cfg, &sysreg->display_ctrl);
46 }
47 
exynos5_set_system_display(void)48 static void exynos5_set_system_display(void)
49 {
50 	struct exynos5_sysreg *sysreg =
51 	    (struct exynos5_sysreg *)samsung_get_base_sysreg();
52 	unsigned int cfg = 0;
53 
54 	/*
55 	 * system register path set
56 	 * 0: MIE/MDNIE
57 	 * 1: FIMD Bypass
58 	 */
59 	cfg = readl(&sysreg->disp1blk_cfg);
60 	cfg |= (1 << 15);
61 	writel(cfg, &sysreg->disp1blk_cfg);
62 }
63 
set_system_display_ctrl(void)64 void set_system_display_ctrl(void)
65 {
66 	if (cpu_is_exynos4())
67 		exynos4_set_system_display();
68 	else
69 		exynos5_set_system_display();
70 }
71