From 283591f171a6a53a0a77fb74055b4f1b06b576c6 Mon Sep 17 00:00:00 2001 From: Donghwa Lee Date: Thu, 5 Apr 2012 19:36:10 +0000 Subject: EXYNOS: definitions of system resgister and power management registers. This is definitions of system registers and power mananagement registers for EXYNOS SoC. Signed-off-by: Donghwa Lee Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae Signed-off-by: Minkyu Kang --- arch/arm/cpu/armv7/exynos/system.c | 48 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 arch/arm/cpu/armv7/exynos/system.c (limited to 'arch/arm/cpu/armv7/exynos/system.c') diff --git a/arch/arm/cpu/armv7/exynos/system.c b/arch/arm/cpu/armv7/exynos/system.c new file mode 100644 index 0000000000..6c34730b97 --- /dev/null +++ b/arch/arm/cpu/armv7/exynos/system.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2012 Samsung Electronics + * Donghwa Lee + * + * 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 +#include +#include + +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(); +} -- cgit v1.2.3