u-boot/arch/arm/mach-exynos/system.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

70 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Samsung Electronics
* Donghwa Lee <dh09.lee@samsung.com>
*/
#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();
}