[U-Boot] [PATCH v3 1/4] ARM: EXYNOS: definition of system registers

[U-Boot] [PATCH v3 1/4] ARM: EXYNOS: definition of system registers

[Donghwa Lee]

This is definition of system registers for EXYNOS SoC.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 arch/arm/cpu/armv7/exynos/Makefile        |    2 +-
 arch/arm/cpu/armv7/exynos/system.c        |   48 ++++++++++++++++++++++++++
 arch/arm/include/asm/arch-exynos/cpu.h    |    2 +
 arch/arm/include/asm/arch-exynos/system.h |   53 +++++++++++++++++++++++++++++
 4 files changed, 104 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/exynos/system.c
 create mode 100644 arch/arm/include/asm/arch-exynos/system.h

diff --git a/arch/arm/cpu/armv7/exynos/Makefile b/arch/arm/cpu/armv7/exynos/Makefile
index 124c380..75c31dc 100644
--- a/arch/arm/cpu/armv7/exynos/Makefile
+++ b/arch/arm/cpu/armv7/exynos/Makefile
@@ -22,7 +22,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(SOC).o
 
-COBJS	+= clock.o soc.o
+COBJS	+= clock.o soc.o system.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS) $(SOBJS))
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();
+}
diff --git a/arch/arm/include/asm/arch-exynos/cpu.h b/arch/arm/include/asm/arch-exynos/cpu.h
index 89f2c2e..70048f0 100644
--- a/arch/arm/include/asm/arch-exynos/cpu.h
+++ b/arch/arm/include/asm/arch-exynos/cpu.h
@@ -29,6 +29,7 @@
 /* EXYNOS4 */
 #define EXYNOS4_GPIO_PART3_BASE		0x03860000
 #define EXYNOS4_PRO_ID			0x10000000
+#define EXYNOS4_SYSREG_BASE		0x10010000
 #define EXYNOS4_POWER_BASE		0x10020000
 #define EXYNOS4_SWRESET			0x10020400
 #define EXYNOS4_CLOCK_BASE		0x10030000
@@ -127,6 +128,7 @@ static inline unsigned int samsung_get_base_##device(void)	\
 
 SAMSUNG_BASE(adc, ADC_BASE)
 SAMSUNG_BASE(clock, CLOCK_BASE)
+SAMSUNG_BASE(sysreg, SYSREG_BASE)
 SAMSUNG_BASE(fimd, FIMD_BASE)
 SAMSUNG_BASE(gpio_part1, GPIO_PART1_BASE)
 SAMSUNG_BASE(gpio_part2, GPIO_PART2_BASE)
diff --git a/arch/arm/include/asm/arch-exynos/system.h b/arch/arm/include/asm/arch-exynos/system.h
new file mode 100644
index 0000000..c85f949
--- /dev/null
+++ b/arch/arm/include/asm/arch-exynos/system.h
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2012 Samsung Electronics
+ * Donghwa Lee <dh09.lee@samsung.com>
+ *
+ * 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
+ *
+ */
+
+#ifndef __ASM_ARM_ARCH_SYSTEM_H_
+#define __ASM_ARM_ARCH_SYSTEM_H_
+
+#ifndef __ASSEMBLY__
+struct exynos4_sysreg {
+	unsigned char	res1[0x210];
+	unsigned int	display_ctrl;
+	unsigned int	display_ctrl2;
+	unsigned int	camera_control;
+	unsigned int	audio_endian;
+	unsigned int	jtag_con;
+};
+
+struct exynos5_sysreg {
+	unsigned char	res1[0x214];
+	unsigned int	disp1blk_cfg;
+	unsigned int	disp2blk_cfg;
+	unsigned int	hdcp_e_fuse;
+	unsigned int	gsclblk_cfg0;
+	unsigned int	gsclblk_cfg1;
+	unsigned int	reserved;
+	unsigned int	ispblk_cfg;
+	unsigned int	usb20phy_cfg;
+	unsigned int	mipi_dphy;
+	unsigned int	dptx_dphy;
+	unsigned int	phyclk_sel;
+};
+#endif
+
+void set_system_display_ctrl(void);
+
+#endif	/* _EXYNOS4_SYSTEM_H */
-- 
1.7.4.1