system.c
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/*
* Copyright (C) 2012 Samsung Electronics
* Donghwa Lee <dh09.lee@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/system.h>
static void exynos5_set_usbhost_mode(unsigned int mode)
{
struct exynos5_sysreg *sysreg =
(struct exynos5_sysreg *)samsung_get_base_sysreg();
/* Setting USB20PHY_CONFIG register to USB 2.0 HOST link */
if (mode == USB20_PHY_CFG_HOST_LINK_EN) {
setbits_le32(&sysreg->usb20phy_cfg,
USB20_PHY_CFG_HOST_LINK_EN);
} else {
clrbits_le32(&sysreg->usb20phy_cfg,
USB20_PHY_CFG_HOST_LINK_EN);
}
}
void set_usbhost_mode(unsigned int mode)
{
if (cpu_is_exynos5())
exynos5_set_usbhost_mode(mode);
}
static void exynos4_set_system_display(void)
{
struct exynos4_sysreg *sysreg =
(struct exynos4_sysreg *)samsung_get_base_sysreg();
unsigned int cfg = 0;
/*
* system register path set
* 0: MIE/MDNIE
* 1: FIMD Bypass
*/
cfg = readl(&sysreg->display_ctrl);
cfg |= (1 << 1);
writel(cfg, &sysreg->display_ctrl);
}
static void exynos5_set_system_display(void)
{
struct exynos5_sysreg *sysreg =
(struct exynos5_sysreg *)samsung_get_base_sysreg();
unsigned int cfg = 0;
/*
* system register path set
* 0: MIE/MDNIE
* 1: FIMD Bypass
*/
cfg = readl(&sysreg->disp1blk_cfg);
cfg |= (1 << 15);
writel(cfg, &sysreg->disp1blk_cfg);
}
void set_system_display_ctrl(void)
{
if (cpu_is_exynos4())
exynos4_set_system_display();
else
exynos5_set_system_display();
}