diff options
Diffstat (limited to 'arch/arm/cpu/armv7/exynos/system.c')
-rw-r--r-- | arch/arm/cpu/armv7/exynos/system.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/exynos/system.c b/arch/arm/cpu/armv7/exynos/system.c new file mode 100644 index 0000000..8424c57 --- /dev/null +++ b/arch/arm/cpu/armv7/exynos/system.c @@ -0,0 +1,87 @@ +/* + * 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); +} + +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(); +} |