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Diffstat (limited to 'arch/arm/cpu/armv7/exynos/system.c')
-rw-r--r--arch/arm/cpu/armv7/exynos/system.c48
1 files changed, 48 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..6c34730
--- /dev/null
+++ b/arch/arm/cpu/armv7/exynos/system.c
@@ -0,0 +1,48 @@
+/*
+ * 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 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();
+}