upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/arch/arm/cpu/armv7/exynos/system.c

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1.8 KiB

/*
* Copyright (C) 2012 Samsung Electronics
* Donghwa Lee <dh09.lee@samsung.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#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);
}
void set_system_display_ctrl(void)
{
if (cpu_is_exynos4())
exynos4_set_system_display();
}