MFC 263250, 263251, 263424, 263425, 263426, 263427, 263430, 263431

  Use the same cache terminology as the ARM docs in comments. No
  functional changes.

  Use armv7 TLB flush code, not arm11, for cortex-a processors.

  Exynos/ Arndale...
  - Disable debugging by default.
  - Add display-related and clk devices to the tree
  - Prevent resources intersection with EHCI driver
  - Add display-related and clk devices to the tree
  - Prevent resources intersection with EHCI driver
  - Add driver for Display Controller.
  - Add support for Samsung Chromebook (ARM Cortex A15 machine).
  - Rename mct and ehci drivers files to match common naming.

11 files changed, 710 insertions, 23 deletions

diff --git a/sys/arm/arm/cpufunc.c b/sys/arm/arm/cpufunc.c
index 3b9155f..75fa81d 100644
--- a/sys/arm/arm/cpufunc.c
+++ b/sys/arm/arm/cpufunc.c
@@ -754,14 +754,18 @@ struct cpu_functions cortexa_cpufuncs = {
 	cpufunc_faultstatus,            /* Faultstatus          */
 	cpufunc_faultaddress,           /* Faultaddress         */
 	
-	/* TLB functions */
+	/* 
+	 * TLB functions.  ARMv7 does all TLB ops based on a unified TLB model
+	 * whether the hardware implements separate I+D or not, so we use the
+	 * same 'ID' functions for all 3 variations.
+	 */
 	
 	armv7_tlb_flushID,              /* tlb_flushID          */
 	armv7_tlb_flushID_SE,           /* tlb_flushID_SE       */
-	arm11_tlb_flushI,               /* tlb_flushI           */
-	arm11_tlb_flushI_SE,            /* tlb_flushI_SE        */
-	arm11_tlb_flushD,               /* tlb_flushD           */
-	arm11_tlb_flushD_SE,            /* tlb_flushD_SE        */
+	armv7_tlb_flushID,              /* tlb_flushI           */
+	armv7_tlb_flushID_SE,           /* tlb_flushI_SE        */
+	armv7_tlb_flushID,              /* tlb_flushD           */
+	armv7_tlb_flushID_SE,           /* tlb_flushD_SE        */
 	
 	/* Cache operations */
 	
diff --git a/sys/arm/arm/cpufunc_asm_armv7.S b/sys/arm/arm/cpufunc_asm_armv7.S
index 2a4bb98..3599c14 100644
--- a/sys/arm/arm/cpufunc_asm_armv7.S
+++ b/sys/arm/arm/cpufunc_asm_armv7.S
@@ -84,10 +84,10 @@ END(armv7_setttb)
 ENTRY(armv7_tlb_flushID)
 	dsb
 #ifdef SMP
-	mcr	p15, 0, r0, c8, c3, 0	/* flush I+D tlb */
-	mcr	p15, 0, r0, c7, c1, 6	/* flush BTB */
+	mcr	p15, 0, r0, c8, c3, 0	/* flush Unified TLB all entries Inner Shareable */
+	mcr	p15, 0, r0, c7, c1, 6	/* flush BTB Inner Shareable */
 #else
-	mcr	p15, 0, r0, c8, c7, 0	/* flush I+D tlb */
+	mcr	p15, 0, r0, c8, c7, 0	/* flush Unified TLB all entries */
 	mcr	p15, 0, r0, c7, c5, 6	/* flush BTB */
 #endif
 	dsb
@@ -99,10 +99,10 @@ ENTRY(armv7_tlb_flushID_SE)
 	ldr	r1, .Lpage_mask
 	bic	r0, r0, r1
 #ifdef SMP
-	mcr	p15, 0, r0, c8, c3, 3	/* flush D tlb single entry Inner Shareable*/
+	mcr	p15, 0, r0, c8, c3, 3	/* flush Unified TLB single entry Inner Shareable */
 	mcr	p15, 0, r0, c7, c1, 6	/* flush BTB Inner Shareable */
 #else
-	mcr	p15, 0, r0, c8, c7, 1	/* flush D tlb single entry */
+	mcr	p15, 0, r0, c8, c7, 1	/* flush Unified TLB single entry */
 	mcr	p15, 0, r0, c7, c5, 6	/* flush BTB */
 #endif
 	dsb
diff --git a/sys/arm/conf/ARNDALE b/sys/arm/conf/ARNDALE
index 39869e6..231bfc8 100644
--- a/sys/arm/conf/ARNDALE
+++ b/sys/arm/conf/ARNDALE
@@ -60,11 +60,11 @@ options 	BREAK_TO_DEBUGGER
 #options	VERBOSE_SYSINIT		# Enable verbose sysinit messages
 options 	KDB
 options 	DDB			# Enable the kernel debugger
-options 	INVARIANTS		# Enable calls of extra sanity checking
-options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
+#options 	INVARIANTS		# Enable calls of extra sanity checking
+#options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
 #options	WITNESS			# Enable checks to detect deadlocks and cycles
 #options	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
-options 	DIAGNOSTIC
+#options 	DIAGNOSTIC
 
 # NFS support
 options 	NFSCL			# Network Filesystem Client
diff --git a/sys/arm/conf/CHROMEBOOK b/sys/arm/conf/CHROMEBOOK
new file mode 100644
index 0000000..3a2a469
--- /dev/null
+++ b/sys/arm/conf/CHROMEBOOK
@@ -0,0 +1,146 @@
+# Kernel configuration for Samsung Chromebook (Exynos5 Dual machine).
+#
+# For more information on this file, please read the config(5) manual page,
+# and/or the handbook section on Kernel Configuration Files:
+#
+#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
+#
+# The handbook is also available locally in /usr/share/doc/handbook
+# if you've installed the doc distribution, otherwise always see the
+# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
+# latest information.
+#
+# An exhaustive list of options and more detailed explanations of the
+# device lines is also present in the ../../conf/NOTES and NOTES files.
+# If you are in doubt as to the purpose or necessity of a line, check first
+# in NOTES.
+#
+# $FreeBSD$
+
+ident		CHROMEBOOK
+
+include		"../samsung/exynos/std.exynos5"
+
+makeoptions	MODULES_OVERRIDE=""
+makeoptions	WITHOUT_MODULES="ahc"
+
+makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
+makeoptions	WERROR="-Werror"
+
+options 	HZ=100
+options 	SCHED_4BSD		# 4BSD scheduler
+options 	INET			# InterNETworking
+options 	INET6			# IPv6 communications protocols
+options 	GEOM_PART_BSD		# BSD partition scheme
+options 	GEOM_PART_MBR		# MBR partition scheme
+options 	TMPFS			# Efficient memory filesystem
+options 	FFS			# Berkeley Fast Filesystem
+options 	SOFTUPDATES
+options 	UFS_ACL			# Support for access control lists
+options 	UFS_DIRHASH		# Improve performance on big directories
+options 	MSDOSFS			# MSDOS Filesystem
+options 	CD9660			# ISO 9660 Filesystem
+options 	PROCFS			# Process filesystem (requires PSEUDOFS)
+options 	PSEUDOFS		# Pseudo-filesystem framework
+options 	COMPAT_43		# Compatible with BSD 4.3 [KEEP THIS!]
+options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
+options 	KTRACE
+options 	SYSVSHM			# SYSV-style shared memory
+options 	SYSVMSG			# SYSV-style message queues
+options 	SYSVSEM			# SYSV-style semaphores
+options 	_KPOSIX_PRIORITY_SCHEDULING # Posix P1003_1B real-time extensions
+options 	KBD_INSTALL_CDEV
+options 	PREEMPTION
+options 	FREEBSD_BOOT_LOADER
+options 	VFP			# vfp/neon
+
+# Debugging
+makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
+options 	BREAK_TO_DEBUGGER
+#options	VERBOSE_SYSINIT		# Enable verbose sysinit messages
+options 	KDB
+options 	DDB			# Enable the kernel debugger
+#options 	INVARIANTS		# Enable calls of extra sanity checking
+#options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
+#options	WITNESS			# Enable checks to detect deadlocks and cycles
+#options	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
+#options 	DIAGNOSTIC
+
+# NFS support
+options 	NFSCL			# Network Filesystem Client
+options 	NFSLOCKD		# Network Lock Manager
+options 	NFS_ROOT		# NFS usable as /, requires NFSCLIENT
+
+# Uncomment this for NFS root
+#options	NFS_ROOT		# NFS usable as /, requires NFSCL
+#options	BOOTP_NFSROOT
+#options	BOOTP_COMPAT
+#options	BOOTP
+#options	BOOTP_NFSV3
+#options	BOOTP_WIRED_TO=cpsw0
+
+device		mmc			# mmc/sd bus
+device		mmcsd			# mmc/sd flash cards
+device		sdhci			# generic sdhci
+
+options 	ROOTDEVNAME=\"ufs:/dev/da0\"
+
+#options	SMP
+
+# Pseudo devices
+
+device		loop
+device		random
+device		pty
+device		md
+device		gpio
+
+# USB support
+options 	USB_HOST_ALIGN=64	# Align usb buffers to cache line size.
+device		usb
+options 	USB_DEBUG
+#options	USB_REQ_DEBUG
+#options	USB_VERBOSE
+#device		musb
+device		ehci
+#device		ohci
+
+device		umass
+device		scbus			# SCSI bus (required for SCSI)
+device		da			# Direct Access (disks)
+device		pass
+
+# SATA
+#device		ata
+#device		atadisk
+#device		mvs
+
+# Serial ports
+device		uart
+
+# Framebuffer
+device		vt
+device		kbdmux
+options 	SC_DFLT_FONT		# compile font in
+makeoptions	SC_DFLT_FONT=cp437
+device		ukbd
+
+# I2C (TWSI)
+#device		iic
+#device		iicbus
+
+# Ethernet
+device		ether
+device		mii
+device		smsc
+device		smscphy
+
+# USB ethernet support, requires miibus
+device		miibus
+device		axe			# ASIX Electronics USB Ethernet
+device		bpf			# Berkeley packet filter
+
+#FDT
+options 	FDT
+options 	FDT_DTB_STATIC
+makeoptions	FDT_DTS_FILE=exynos5250-chromebook.dts
diff --git a/sys/arm/samsung/exynos/exynos5_common.h b/sys/arm/samsung/exynos/exynos5_common.h
new file mode 100644
index 0000000..941d62a
--- /dev/null
+++ b/sys/arm/samsung/exynos/exynos5_common.h
@@ -0,0 +1,40 @@
+/*-
+ * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#define	READ4(_sc, _reg)	\
+	bus_space_read_4(_sc->bst, _sc->bsh, _reg)
+#define	WRITE4(_sc, _reg, _val)	\
+	bus_space_write_4(_sc->bst, _sc->bsh, _reg, _val)
+#define	READ2(_sc, _reg)	\
+	bus_space_read_2(_sc->bst, _sc->bsh, _reg)
+#define	WRITE2(_sc, _reg, _val)	\
+	bus_space_write_2(_sc->bst, _sc->bsh, _reg, _val)
+#define	READ1(_sc, _reg)	\
+	bus_space_read_1(_sc->bst, _sc->bsh, _reg)
+#define	WRITE1(_sc, _reg, _val)	\
+	bus_space_write_1(_sc->bst, _sc->bsh, _reg, _val)
diff --git a/sys/arm/samsung/exynos/ehci_exynos5.c b/sys/arm/samsung/exynos/exynos5_ehci.c
index 7022d46..dc438d5 100644
--- a/sys/arm/samsung/exynos/ehci_exynos5.c
+++ b/sys/arm/samsung/exynos/exynos5_ehci.c
@@ -61,8 +61,8 @@ __FBSDID("$FreeBSD$");
 #define	GPIO_MASK	0xf
 #define	GPIO_OUTPUT	1
 #define	GPIO_INPUT	0
-#define	GPX3CON		0x0C60
-#define	GPX3DAT		0x0C64
+#define	GPX3CON		0x0
+#define	GPX3DAT		0x4
 #define	PIN_USB		5
 
 /* PWR control */
@@ -71,7 +71,7 @@ __FBSDID("$FreeBSD$");
 #define	PHY_POWER_OFF			0
 
 /* SYSREG */
-#define	EXYNOS5_SYSREG_USB2_PHY	0x230
+#define	EXYNOS5_SYSREG_USB2_PHY	0x0
 #define	USB2_MODE_HOST		0x1
 
 /* USB HOST */
diff --git a/sys/arm/samsung/exynos/exynos5_fimd.c b/sys/arm/samsung/exynos/exynos5_fimd.c
new file mode 100644
index 0000000..e56f477
--- /dev/null
+++ b/sys/arm/samsung/exynos/exynos5_fimd.c
@@ -0,0 +1,407 @@
+/*-
+ * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Samsung Exynos 5 Display Controller
+ * Chapter 15, Exynos 5 Dual User's Manual Public Rev 1.00
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/malloc.h>
+#include <sys/rman.h>
+#include <sys/timeet.h>
+#include <sys/timetc.h>
+#include <sys/watchdog.h>
+#include <sys/fbio.h>
+#include <sys/consio.h>
+#include <sys/eventhandler.h>
+#include <sys/gpio.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/vt/vt.h>
+#include <dev/vt/colors/vt_termcolors.h>
+
+#include <arm/samsung/exynos/exynos5_common.h>
+
+#include "gpio_if.h"
+
+#include <machine/bus.h>
+#include <machine/fdt.h>
+#include <machine/cpu.h>
+#include <machine/intr.h>
+
+#include "fb_if.h"
+
+#define	FIMDBYPASS_DISP1	(1 << 15)
+
+#define	VIDCON0		(0x0)
+#define	VIDCON0_ENVID	(1 << 1)
+#define	VIDCON0_ENVID_F	(1 << 0)
+#define	CLKVAL_F	0xb
+#define	CLKVAL_F_OFFSET	6
+
+#define	WINCON0		0x0020
+#define	WINCON1		0x0024
+#define	WINCON2		0x0028
+#define	WINCON3		0x002C
+#define	WINCON4		0x0030
+
+#define	ENLOCAL_F			(1 << 22)
+#define	BPPMODE_F_RGB_16BIT_565		0x5
+#define	BPPMODE_F_OFFSET		2
+#define	ENWIN_F_ENABLE			(1 << 0)
+#define	HALF_WORD_SWAP_EN		(1 << 16)
+
+#define	SHADOWCON	0x0034
+#define	CHANNEL0_EN	(1 << 0)
+
+#define	VIDOSD0A	0x0040
+#define	VIDOSD0B	0x0044
+#define	VIDOSD0C	0x0048
+
+#define	VIDW00ADD0B0	0x00A0
+#define	VIDW00ADD0B1	0x00A4
+#define	VIDW00ADD0B2	0x20A0
+#define	VIDW00ADD1B0	0x00D0
+#define	VIDW00ADD1B1	0x00D4
+#define	VIDW00ADD1B2	0x20D0
+
+#define	VIDW00ADD2	0x0100
+#define	VIDW01ADD2	0x0104
+#define	VIDW02ADD2	0x0108
+#define	VIDW03ADD2	0x010C
+#define	VIDW04ADD2	0x0110
+
+#define	VIDCON1		(0x04)
+#define	VIDTCON0	0x0010
+#define	VIDTCON1	0x0014
+#define	VIDTCON2	0x0018
+#define	VIDTCON3	0x001C
+
+#define	VIDINTCON0	0x0130
+#define	VIDINTCON1	0x0134
+
+#define	VSYNC_PULSE_WIDTH_VAL		0x3
+#define	VSYNC_PULSE_WIDTH_OFFSET	0
+#define	V_FRONT_PORCH_VAL		0x3
+#define	V_FRONT_PORCH_OFFSET		8
+#define	V_BACK_PORCH_VAL		0x3
+#define	V_BACK_PORCH_OFFSET		16
+
+#define	HSYNC_PULSE_WIDTH_VAL		0x3
+#define	HSYNC_PULSE_WIDTH_OFFSET	0
+#define	H_FRONT_PORCH_VAL		0x3
+#define	H_FRONT_PORCH_OFFSET		8
+#define	H_BACK_PORCH_VAL		0x3
+#define	H_BACK_PORCH_OFFSET		16
+
+#define	HOZVAL_OFFSET		0
+#define	LINEVAL_OFFSET		11
+
+#define	OSD_RIGHTBOTX_F_OFFSET		11
+#define	OSD_RIGHTBOTY_F_OFFSET		0
+
+#define	DPCLKCON	0x27c
+#define	DPCLKCON_EN	(1 << 1)
+
+#define	DREAD4(_sc, _reg)         \
+	bus_space_read_4(_sc->bst_disp, _sc->bsh_disp, _reg)
+#define	DWRITE4(_sc, _reg, _val)  \
+	bus_space_write_4(_sc->bst_disp, _sc->bsh_disp, _reg, _val)
+
+struct panel_info {
+	uint32_t	width;
+	uint32_t	height;
+	uint32_t	h_back_porch;
+	uint32_t	h_pulse_width;
+	uint32_t	h_front_porch;
+	uint32_t	v_back_porch;
+	uint32_t	v_pulse_width;
+	uint32_t	v_front_porch;
+	uint32_t	clk_div;
+	uint32_t	backlight_pin;
+	uint32_t	fixvclk;
+	uint32_t	ivclk;
+	uint32_t	clkval_f;
+};
+
+struct fimd_softc {
+	struct resource		*res[3];
+	bus_space_tag_t		bst;
+	bus_space_handle_t	bsh;
+	bus_space_tag_t		bst_disp;
+	bus_space_handle_t	bsh_disp;
+	bus_space_tag_t		bst_sysreg;
+	bus_space_handle_t	bsh_sysreg;
+
+	void			*ih;
+	device_t		dev;
+	device_t		sc_fbd;		/* fbd child */
+	struct fb_info		sc_info;
+	struct panel_info	*panel;
+};
+
+static struct resource_spec fimd_spec[] = {
+	{ SYS_RES_MEMORY,	0,	RF_ACTIVE },	/* Timer registers */
+	{ SYS_RES_MEMORY,	1,	RF_ACTIVE },	/* FIMD */
+	{ SYS_RES_MEMORY,	2,	RF_ACTIVE },	/* DISP */
+	{ -1, 0 }
+};
+
+static int
+fimd_probe(device_t dev)
+{
+
+	if (!ofw_bus_status_okay(dev))
+		return (ENXIO);
+
+	if (!ofw_bus_is_compatible(dev, "exynos,fimd"))
+		return (ENXIO);
+
+	device_set_desc(dev, "Samsung Exynos 5 Display Controller");
+	return (BUS_PROBE_DEFAULT);
+}
+
+static int
+get_panel_info(struct fimd_softc *sc, struct panel_info *panel)
+{
+	phandle_t node;
+	pcell_t dts_value[3];
+	int len;
+
+	if ((node = ofw_bus_get_node(sc->dev)) == -1)
+		return (ENXIO);
+
+	/* panel size */
+	if ((len = OF_getproplen(node, "panel-size")) <= 0)
+		return (ENXIO);
+	OF_getprop(node, "panel-size", &dts_value, len);
+	panel->width = fdt32_to_cpu(dts_value[0]);
+	panel->height = fdt32_to_cpu(dts_value[1]);
+
+	/* hsync */
+	if ((len = OF_getproplen(node, "panel-hsync")) <= 0)
+		return (ENXIO);
+	OF_getprop(node, "panel-hsync", &dts_value, len);
+	panel->h_back_porch = fdt32_to_cpu(dts_value[0]);
+	panel->h_pulse_width = fdt32_to_cpu(dts_value[1]);
+	panel->h_front_porch = fdt32_to_cpu(dts_value[2]);
+
+	/* vsync */
+	if ((len = OF_getproplen(node, "panel-vsync")) <= 0)
+		return (ENXIO);
+	OF_getprop(node, "panel-vsync", &dts_value, len);
+	panel->v_back_porch = fdt32_to_cpu(dts_value[0]);
+	panel->v_pulse_width = fdt32_to_cpu(dts_value[1]);
+	panel->v_front_porch = fdt32_to_cpu(dts_value[2]);
+
+	/* clk divider */
+	if ((len = OF_getproplen(node, "panel-clk-div")) <= 0)
+		return (ENXIO);
+	OF_getprop(node, "panel-clk-div", &dts_value, len);
+	panel->clk_div = fdt32_to_cpu(dts_value[0]);
+
+	/* backlight pin */
+	if ((len = OF_getproplen(node, "panel-backlight-pin")) <= 0)
+		return (ENXIO);
+	OF_getprop(node, "panel-backlight-pin", &dts_value, len);
+	panel->backlight_pin = fdt32_to_cpu(dts_value[0]);
+
+	return (0);
+}
+
+static int
+fimd_init(struct fimd_softc *sc)
+{
+	struct panel_info *panel;
+	int reg;
+
+	panel = sc->panel;
+
+	/* fb_init */
+	reg = panel->ivclk | panel->fixvclk;
+	DWRITE4(sc,VIDCON1,reg);
+
+	reg = (VIDCON0_ENVID | VIDCON0_ENVID_F);
+	reg |= (panel->clkval_f << CLKVAL_F_OFFSET);
+	WRITE4(sc,VIDCON0,reg);
+
+	reg = (panel->v_pulse_width << VSYNC_PULSE_WIDTH_OFFSET);
+	reg |= (panel->v_front_porch << V_FRONT_PORCH_OFFSET);
+	reg |= (panel->v_back_porch << V_BACK_PORCH_OFFSET);
+	DWRITE4(sc,VIDTCON0,reg);
+
+	reg = (panel->h_pulse_width << HSYNC_PULSE_WIDTH_OFFSET);
+	reg |= (panel->h_front_porch << H_FRONT_PORCH_OFFSET);
+	reg |= (panel->h_back_porch << H_BACK_PORCH_OFFSET);
+	DWRITE4(sc,VIDTCON1,reg);
+
+	reg = ((panel->width - 1) << HOZVAL_OFFSET);
+	reg |= ((panel->height - 1) << LINEVAL_OFFSET);
+	DWRITE4(sc,VIDTCON2,reg);
+
+	WRITE4(sc,VIDW00ADD0B0, sc->sc_info.fb_pbase);
+	WRITE4(sc,VIDW00ADD1B0, sc->sc_info.fb_pbase + sc->sc_info.fb_size);
+	WRITE4(sc,VIDW00ADD2, panel->width * 2);
+
+	reg = ((panel->width - 1) << OSD_RIGHTBOTX_F_OFFSET);
+	reg |= ((panel->height - 1) << OSD_RIGHTBOTY_F_OFFSET);
+	WRITE4(sc,VIDOSD0B,reg);
+
+	reg = panel->width * panel->height;
+	WRITE4(sc,VIDOSD0C,reg);
+
+	reg = READ4(sc, SHADOWCON);
+	reg |= CHANNEL0_EN;
+	reg &= ~(1 << 5); /* disable local path for channel0 */
+	WRITE4(sc,SHADOWCON,reg);
+
+	reg = BPPMODE_F_RGB_16BIT_565 << BPPMODE_F_OFFSET;
+	reg |= ENWIN_F_ENABLE | HALF_WORD_SWAP_EN; /* Note: swap=0 when ENLOCAL==1 */
+	reg &= ~ENLOCAL_F; /* use DMA */
+	WRITE4(sc,WINCON0,reg);
+
+	/* Enable DisplayPort Clk */
+	WRITE4(sc, DPCLKCON, DPCLKCON_EN);
+
+	return (0);
+}
+
+static int
+fimd_attach(device_t dev)
+{
+	struct panel_info panel;
+	struct fimd_softc *sc;
+	device_t gpio_dev;
+	int reg;
+
+	sc = device_get_softc(dev);
+	sc->dev = dev;
+
+	if (bus_alloc_resources(dev, fimd_spec, sc->res)) {
+		device_printf(dev, "could not allocate resources\n");
+		return (ENXIO);
+	}
+
+	/* Memory interface */
+	sc->bst = rman_get_bustag(sc->res[0]);
+	sc->bsh = rman_get_bushandle(sc->res[0]);
+	sc->bst_disp = rman_get_bustag(sc->res[1]);
+	sc->bsh_disp = rman_get_bushandle(sc->res[1]);
+	sc->bst_sysreg = rman_get_bustag(sc->res[2]);
+	sc->bsh_sysreg = rman_get_bushandle(sc->res[2]);
+
+	if (get_panel_info(sc, &panel)) {
+		device_printf(dev, "Can't get panel info\n");
+		return (ENXIO);
+	}
+
+	panel.fixvclk = 0;
+	panel.ivclk = 0;
+	panel.clkval_f = 2;
+
+	sc->panel = &panel;
+
+	/* Get the GPIO device, we need this to give power to USB */
+	gpio_dev = devclass_get_device(devclass_find("gpio"), 0);
+	if (gpio_dev == NULL) {
+		/* TODO */
+	}
+
+	reg = bus_space_read_4(sc->bst_sysreg, sc->bsh_sysreg, 0x214);
+	reg |= FIMDBYPASS_DISP1;
+	bus_space_write_4(sc->bst_sysreg, sc->bsh_sysreg, 0x214, reg);
+
+	sc->sc_info.fb_width = panel.width;
+	sc->sc_info.fb_height = panel.height;
+	sc->sc_info.fb_stride = sc->sc_info.fb_width * 2;
+	sc->sc_info.fb_bpp = sc->sc_info.fb_depth = 16;
+	sc->sc_info.fb_size = sc->sc_info.fb_height * sc->sc_info.fb_stride;
+	sc->sc_info.fb_vbase = (intptr_t)contigmalloc(sc->sc_info.fb_size,
+	    M_DEVBUF, M_ZERO, 0, ~0, PAGE_SIZE, 0);
+	sc->sc_info.fb_pbase = (intptr_t)vtophys(sc->sc_info.fb_vbase);
+
+#if 0
+	printf("%dx%d [%d]\n", sc->sc_info.fb_width, sc->sc_info.fb_height,
+	    sc->sc_info.fb_stride);
+	printf("pbase == 0x%08x\n", sc->sc_info.fb_pbase);
+#endif
+
+	memset((int8_t *)sc->sc_info.fb_vbase, 0x0, sc->sc_info.fb_size);
+
+	fimd_init(sc);
+
+	sc->sc_info.fb_name = device_get_nameunit(dev);
+
+	/* Ask newbus to attach framebuffer device to me. */
+	sc->sc_fbd = device_add_child(dev, "fbd", device_get_unit(dev));
+	if (sc->sc_fbd == NULL)
+		device_printf(dev, "Can't attach fbd device\n");
+
+	if (device_probe_and_attach(sc->sc_fbd) != 0) {
+		device_printf(sc->dev, "Failed to attach fbd device\n");
+	}
+
+	return (0);
+}
+
+static struct fb_info *
+fimd_fb_getinfo(device_t dev)
+{
+	struct fimd_softc *sc = device_get_softc(dev);
+
+	return (&sc->sc_info);
+}
+
+static device_method_t fimd_methods[] = {
+	DEVMETHOD(device_probe,		fimd_probe),
+	DEVMETHOD(device_attach,	fimd_attach),
+
+	/* Framebuffer service methods */
+	DEVMETHOD(fb_getinfo,		fimd_fb_getinfo),
+	{ 0, 0 }
+};
+
+static driver_t fimd_driver = {
+	"fb",
+	fimd_methods,
+	sizeof(struct fimd_softc),
+};
+
+static devclass_t fimd_devclass;
+
+DRIVER_MODULE(fb, simplebus, fimd_driver, fimd_devclass, 0, 0);
diff --git a/sys/arm/samsung/exynos/arch_timer.c b/sys/arm/samsung/exynos/exynos5_mct.c
index 9408df5..863baa8 100644
--- a/sys/arm/samsung/exynos/arch_timer.c
+++ b/sys/arm/samsung/exynos/exynos5_mct.c
@@ -129,11 +129,11 @@ static device_method_t arm_tmr_methods[] = {
 };
 
 static driver_t arm_tmr_driver = {
-	"arch_timer",
+	"mct",
 	arm_tmr_methods,
 	sizeof(struct arm_tmr_softc),
 };
 
 static devclass_t arm_tmr_devclass;
 
-DRIVER_MODULE(arch_timer, simplebus, arm_tmr_driver, arm_tmr_devclass, 0, 0);
+DRIVER_MODULE(mct, simplebus, arm_tmr_driver, arm_tmr_devclass, 0, 0);
diff --git a/sys/arm/samsung/exynos/files.exynos5 b/sys/arm/samsung/exynos/files.exynos5
index c68b1ff..fc68cd3 100644
--- a/sys/arm/samsung/exynos/files.exynos5
+++ b/sys/arm/samsung/exynos/files.exynos5
@@ -13,11 +13,12 @@ arm/arm/bus_space-v6.c				standard
 arm/arm/gic.c					standard
 arm/arm/generic_timer.c				standard
 
-arm/samsung/exynos/arch_timer.c			standard
+arm/samsung/exynos/exynos5_mct.c		standard
 arm/samsung/exynos/exynos5_mp.c			optional	smp
 arm/samsung/exynos/exynos5_common.c		standard
 arm/samsung/exynos/exynos5_machdep.c		standard
 arm/samsung/exynos/uart.c			optional	uart
-arm/samsung/exynos/ehci_exynos5.c		optional	ehci
+arm/samsung/exynos/exynos5_ehci.c		optional	ehci
+arm/samsung/exynos/exynos5_fimd.c		optional	vt
 
 #dev/sdhci/sdhci_fdt.c				optional	sdhci
diff --git a/sys/boot/fdt/dts/arm/exynos5250-chromebook.dts b/sys/boot/fdt/dts/arm/exynos5250-chromebook.dts
new file mode 100644
index 0000000..0b9c978
--- /dev/null
+++ b/sys/boot/fdt/dts/arm/exynos5250-chromebook.dts
@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/dts-v1/;
+
+/include/ "exynos5250.dtsi"
+
+/ {
+	model = "Samsung Chromebook";
+
+	memory {
+		device_type = "memory";
+		reg = < 0x40000000 0x80000000 >;  /* 2G */
+	};
+
+	SOC: Exynos5@0 {
+
+		fimd0: fimd@14400000 {
+			status = "okay";
+
+			panel-size = < 1366 768 >;
+			panel-hsync = < 80 32 48 >;
+			panel-vsync = < 14 5 3 >;
+			panel-clk-div = < 17 >;
+			panel-backlight-pin = < 25 >;
+		};
+
+	};
+
+	chosen {
+		stdin = &serial2;
+		stdout = &serial2;
+	};
+};
diff --git a/sys/boot/fdt/dts/arm/exynos5250.dtsi b/sys/boot/fdt/dts/arm/exynos5250.dtsi
index 860fcd0..f679a13 100644
--- a/sys/boot/fdt/dts/arm/exynos5250.dtsi
+++ b/sys/boot/fdt/dts/arm/exynos5250.dtsi
@@ -32,7 +32,16 @@
 	#size-cells = <1>;
 	interrupt-parent = <&GIC>;
 
-	Exynos5@0 {
+	aliases {
+		soc = &SOC;
+		serial0 = &serial0;
+		serial1 = &serial1;
+		clk0 = &clk0;
+		dp0 = &dp0;
+		fimd0 = &fimd0;
+	};
+
+	SOC: Exynos5@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "simple-bus";
@@ -48,6 +57,11 @@
 			#interrupt-cells = <1>;
 		};
 
+		clk0: clk@10010000 {
+			compatible = "exynos,clk";
+			reg = < 0x10020000 0x20000 >;
+		};
+
 		mct {
 			compatible = "exynos,mct";
 			reg = < 0x101C0000 0x1000 >;
@@ -72,8 +86,8 @@
 			reg = <0x12110000 0x1000>, /* EHCI */
 			      <0x12130000 0x1000>, /* EHCI host ctrl */
 			      <0x10040000 0x1000>, /* Power */
-			      <0x10050000 0x1000>, /* Sysreg */
-			      <0x11400000 0x1000>; /* GPIO left */
+			      <0x10050230 0x10>, /* Sysreg */
+			      <0x11400C60 0x10>; /* GPIO left */
 			interrupts = < 103 >;
 			interrupt-parent = <&GIC>;
 		};
@@ -153,5 +167,21 @@
 			current-speed = <115200>;
 		};
 
+		fimd0: fimd@14400000 {
+			compatible = "exynos,fimd";
+			status = "disabled";
+			reg = < 0x14400000 0x10000 >, /* fimd */
+			      < 0x14420000 0x10000 >, /* disp */
+			      < 0x10050000 0x220 >; /* sysreg */
+			interrupt-parent = <&GIC>;
+		};
+
+		dp0: dp@145B0000 {
+			compatible = "exynos,dp";
+			status = "disabled";
+			reg = < 0x145B0000 0x10000 >,
+			      < 0x10040720 0x10 >; /* PHY */
+			interrupt-parent = <&GIC>;
+		};
 	};
 };