if ARCH_SUNXI
  
  choice
  	prompt "Sunxi SoC Variant"
  
  config MACH_SUN4I
  	bool "sun4i (Allwinner A10)"
  	select CPU_V7
  	select SUPPORT_SPL
  
  config MACH_SUN5I
  	bool "sun5i (Allwinner A13)"
  	select CPU_V7
  	select SUPPORT_SPL
  
  config MACH_SUN6I
  	bool "sun6i (Allwinner A31)"
  	select CPU_V7
  	select SUPPORT_SPL
  
  config MACH_SUN7I
  	bool "sun7i (Allwinner A20)"
  	select CPU_V7
  	select CPU_V7_HAS_NONSEC
  	select CPU_V7_HAS_VIRT
  	select SUPPORT_SPL
  	select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
  
  config MACH_SUN8I
  	bool "sun8i (Allwinner A23)"
  	select CPU_V7
  	select SUPPORT_SPL
  
  endchoice
  
  config DRAM_CLK
  	int "sunxi dram clock speed"
  	default 312 if MACH_SUN6I || MACH_SUN8I
  	default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
  	---help---
  	Set the dram clock speed, valid range 240 - 480, must be a multiple
  	of 24.
  
  if MACH_SUN5I || MACH_SUN7I
  config DRAM_MBUS_CLK
  	int "sunxi mbus clock speed"
  	default 300
  	---help---
  	Set the mbus clock speed. The maximum on sun5i hardware is 300MHz.
  
  endif
  
  config DRAM_ZQ
  	int "sunxi dram zq value"
  	default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
  	default 127 if MACH_SUN7I
  	---help---
  	Set the dram zq value.
  
  if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
  config DRAM_EMR1
  	int "sunxi dram emr1 value"
  	default 0 if MACH_SUN4I
  	default 4 if MACH_SUN5I || MACH_SUN7I
  	---help---
  	Set the dram controller emr1 value.
  
  config DRAM_ODT_EN
  	int "sunxi dram odt_en value"
  	default 0
  	---help---
  	Set the dram controller odt_en parameter. This can be used to
  	enable/disable the ODT feature.
  
  config DRAM_TPR3
  	hex "sunxi dram tpr3 value"
  	default 0
  	---help---
  	Set the dram controller tpr3 parameter. This parameter configures
  	the delay on the command lane and also phase shifts, which are
  	applied for sampling incoming read data. The default value 0
  	means that no phase/delay adjustments are necessary. Properly
  	configuring this parameter increases reliability at high DRAM
  	clock speeds.
  
  config DRAM_DQS_GATING_DELAY
  	hex "sunxi dram dqs_gating_delay value"
  	default 0
  	---help---
  	Set the dram controller dqs_gating_delay parmeter. Each byte
  	encodes the DQS gating delay for each byte lane. The delay
  	granularity is 1/4 cycle. For example, the value 0x05060606
  	means that the delay is 5 quarter-cycles for one lane (1.25
  	cycles) and 6 quarter-cycles (1.5 cycles) for 3 other lanes.
  	The default value 0 means autodetection. The results of hardware
  	autodetection are not very reliable and depend on the chip
  	temperature (sometimes producing different results on cold start
  	and warm reboot). But the accuracy of hardware autodetection
  	is usually good enough, unless running at really high DRAM
  	clocks speeds (up to 600MHz). If unsure, keep as 0.
  
  choice
  	prompt "sunxi dram timings"
  	default DRAM_TIMINGS_VENDOR_MAGIC
  	---help---
  	Select the timings of the DDR3 chips.
  
  config DRAM_TIMINGS_VENDOR_MAGIC
  	bool "Magic vendor timings from Android"
  	---help---
  	The same DRAM timings as in the Allwinner boot0 bootloader.
  
  config DRAM_TIMINGS_DDR3_1066F_1333H
  	bool "JEDEC DDR3-1333H with down binning to DDR3-1066F"
  	---help---
  	Use the timings of the standard JEDEC DDR3-1066F speed bin for
  	DRAM_CLK <= 533MHz and the timings of the DDR3-1333H speed bin
  	for DRAM_CLK > 533MHz. This covers the majority of DDR3 chips
  	used in Allwinner A10/A13/A20 devices. In the case of DDR3-1333
  	or DDR3-1600 chips, be sure to check the DRAM datasheet to confirm
  	that down binning to DDR3-1066F is supported (because DDR3-1066F
  	uses a bit faster timings than DDR3-1333H).
  
  config DRAM_TIMINGS_DDR3_800E_1066G_1333J
  	bool "JEDEC DDR3-800E / DDR3-1066G / DDR3-1333J"
  	---help---
  	Use the timings of the slowest possible JEDEC speed bin for the
  	selected DRAM_CLK. Depending on the DRAM_CLK value, it may be
  	DDR3-800E, DDR3-1066G or DDR3-1333J.
  
  endchoice
  
  endif
  
  config SYS_CLK_FREQ
  	default 912000000 if MACH_SUN7I
  	default 1008000000 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
  
  config SYS_CONFIG_NAME
  	default "sun4i" if MACH_SUN4I
  	default "sun5i" if MACH_SUN5I
  	default "sun6i" if MACH_SUN6I
  	default "sun7i" if MACH_SUN7I
  	default "sun8i" if MACH_SUN8I
  
  config SYS_BOARD
  	default "sunxi"
  
  config SYS_SOC
  	default "sunxi"
  
  config SPL_FEL
  	bool "SPL/FEL mode support"
  	depends on SPL
  	default n
  	help
  	  This enables support for Fast Early Loader (FEL) mode. This
  	  allows U-Boot to be loaded to the board over USB by the on-chip
  	  boot rom. U-Boot should be sent in two parts: SPL first, with
  	  'fel write 0x2000 u-boot-spl.bin; fel exe 0x2000' then U-Boot with
  	  'fel write 0x4a000000 u-boot.bin; fel exe 0x4a000000'. This option
  	  shrinks the amount of SRAM available to SPL, so only enable it if
  	  you need FEL. Note that enabling this option only allows FEL to be
  	  used; it is still possible to boot U-Boot from boot media. U-Boot
  	  SPL detects when it is being loaded using FEL.
  
  config UART0_PORT_F
  	bool "UART0 on MicroSD breakout board"
  	depends on SPL_FEL
  	default n
  	---help---
  	Repurpose the SD card slot for getting access to the UART0 serial
  	console. Primarily useful only for low level u-boot debugging on
  	tablets, where normal UART0 is difficult to access and requires
  	device disassembly and/or soldering. As the SD card can't be used
  	at the same time, the system can be only booted in the FEL mode.
  	Only enable this if you really know what you are doing.
  
  config FDTFILE
  	string "Default fdtfile env setting for this board"
  
  config OLD_SUNXI_KERNEL_COMPAT
  	boolean "Enable workarounds for booting old kernels"
  	default n
  	---help---
  	Set this to enable various workarounds for old kernels, this results in
  	sub-optimal settings for newer kernels, only enable if needed.
  
  config MMC0_CD_PIN
  	string "Card detect pin for mmc0"
  	default ""
  	---help---
  	Set the card detect pin for mmc0, leave empty to not use cd. This
  	takes a string in the format understood by sunxi_name_to_gpio, e.g.
  	PH1 for pin 1 of port H.
  
  config MMC1_CD_PIN
  	string "Card detect pin for mmc1"
  	default ""
  	---help---
  	See MMC0_CD_PIN help text.
  
  config MMC2_CD_PIN
  	string "Card detect pin for mmc2"
  	default ""
  	---help---
  	See MMC0_CD_PIN help text.
  
  config MMC3_CD_PIN
  	string "Card detect pin for mmc3"
  	default ""
  	---help---
  	See MMC0_CD_PIN help text.
  
  config MMC_SUNXI_SLOT_EXTRA
  	int "mmc extra slot number"
  	default -1
  	---help---
  	sunxi builds always enable mmc0, some boards also have a second sdcard
  	slot or emmc on mmc1 - mmc3. Setting this to 1, 2 or 3 will enable
  	support for this.
  
  config USB0_VBUS_PIN
  	string "Vbus enable pin for usb0 (otg)"
  	default ""
  	---help---
  	Set the Vbus enable pin for usb0 (otg). This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config USB0_VBUS_DET
  	string "Vbus detect pin for usb0 (otg)"
  	depends on USB_MUSB_SUNXI
  	default ""
  	---help---
  	Set the Vbus detect pin for usb0 (otg). This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config USB1_VBUS_PIN
  	string "Vbus enable pin for usb1 (ehci0)"
  	default "PH6" if MACH_SUN4I || MACH_SUN7I
  	default "PH27" if MACH_SUN6I
  	---help---
  	Set the Vbus enable pin for usb1 (ehci0, usb0 is the otg). This takes
  	a string in the format understood by sunxi_name_to_gpio, e.g.
  	PH1 for pin 1 of port H.
  
  config USB2_VBUS_PIN
  	string "Vbus enable pin for usb2 (ehci1)"
  	default "PH3" if MACH_SUN4I || MACH_SUN7I
  	default "PH24" if MACH_SUN6I
  	---help---
  	See USB1_VBUS_PIN help text.
  
  config VIDEO
  	boolean "Enable graphical uboot console on HDMI, LCD or VGA"
  	default y
  	---help---
  	Say Y here to add support for using a cfb console on the HDMI, LCD
  	or VGA output found on most sunxi devices. See doc/README.video for
  	info on how to select the video output and mode.
  
  config VIDEO_HDMI
  	boolean "HDMI output support"
  	depends on VIDEO && !MACH_SUN8I
  	default y
  	---help---
  	Say Y here to add support for outputting video over HDMI.
  
  config VIDEO_VGA
  	boolean "VGA output support"
  	depends on VIDEO && (MACH_SUN4I || MACH_SUN7I)
  	default n
  	---help---
  	Say Y here to add support for outputting video over VGA.
  
  config VIDEO_VGA_VIA_LCD
  	boolean "VGA via LCD controller support"
  	depends on VIDEO && (MACH_SUN5I || MACH_SUN6I || MACH_SUN8I)
  	default n
  	---help---
  	Say Y here to add support for external DACs connected to the parallel
  	LCD interface driving a VGA connector, such as found on the
  	Olimex A13 boards.
  
  config VIDEO_VGA_VIA_LCD_FORCE_SYNC_ACTIVE_HIGH
  	boolean "Force sync active high for VGA via LCD controller support"
  	depends on VIDEO_VGA_VIA_LCD
  	default n
  	---help---
  	Say Y here if you've a board which uses opendrain drivers for the vga
  	hsync and vsync signals. Opendrain drivers cannot generate steep enough
  	positive edges for a stable video output, so on boards with opendrain
  	drivers the sync signals must always be active high.
  
  config VIDEO_VGA_EXTERNAL_DAC_EN
  	string "LCD panel power enable pin"
  	depends on VIDEO_VGA_VIA_LCD
  	default ""
  	---help---
  	Set the enable pin for the external VGA DAC. This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config VIDEO_LCD_MODE
  	string "LCD panel timing details"
  	depends on VIDEO
  	default ""
  	---help---
  	LCD panel timing details string, leave empty if there is no LCD panel.
  	This is in drivers/video/videomodes.c: video_get_params() format, e.g.
  	x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:0,vmode:0
  
  config VIDEO_LCD_DCLK_PHASE
  	int "LCD panel display clock phase"
  	depends on VIDEO
  	default 1
  	---help---
  	Select LCD panel display clock phase shift, range 0-3.
  
  config VIDEO_LCD_POWER
  	string "LCD panel power enable pin"
  	depends on VIDEO
  	default ""
  	---help---
  	Set the power enable pin for the LCD panel. This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config VIDEO_LCD_RESET
  	string "LCD panel reset pin"
  	depends on VIDEO
  	default ""
  	---help---
  	Set the reset pin for the LCD panel. This takes a string in the format
  	understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config VIDEO_LCD_BL_EN
  	string "LCD panel backlight enable pin"
  	depends on VIDEO
  	default ""
  	---help---
  	Set the backlight enable pin for the LCD panel. This takes a string in the
  	the format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of
  	port H.
  
  config VIDEO_LCD_BL_PWM
  	string "LCD panel backlight pwm pin"
  	depends on VIDEO
  	default ""
  	---help---
  	Set the backlight pwm pin for the LCD panel. This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config VIDEO_LCD_BL_PWM_ACTIVE_LOW
  	bool "LCD panel backlight pwm is inverted"
  	depends on VIDEO
  	default y
  	---help---
  	Set this if the backlight pwm output is active low.
  
  config VIDEO_LCD_PANEL_I2C
  	bool "LCD panel needs to be configured via i2c"
  	depends on VIDEO
  	default n
  	---help---
  	Say y here if the LCD panel needs to be configured via i2c. This
  	will add a bitbang i2c controller using gpios to talk to the LCD.
  
  config VIDEO_LCD_PANEL_I2C_SDA
  	string "LCD panel i2c interface SDA pin"
  	depends on VIDEO_LCD_PANEL_I2C
  	default "PG12"
  	---help---
  	Set the SDA pin for the LCD i2c interface. This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  config VIDEO_LCD_PANEL_I2C_SCL
  	string "LCD panel i2c interface SCL pin"
  	depends on VIDEO_LCD_PANEL_I2C
  	default "PG10"
  	---help---
  	Set the SCL pin for the LCD i2c interface. This takes a string in the
  	format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
  
  
  # Note only one of these may be selected at a time! But hidden choices are
  # not supported by Kconfig
  config VIDEO_LCD_IF_PARALLEL
  	bool
  
  config VIDEO_LCD_IF_LVDS
  	bool
  
  
  choice
  	prompt "LCD panel support"
  	depends on VIDEO
  	---help---
  	Select which type of LCD panel to support.
  
  config VIDEO_LCD_PANEL_PARALLEL
  	bool "Generic parallel interface LCD panel"
  	select VIDEO_LCD_IF_PARALLEL
  
  config VIDEO_LCD_PANEL_LVDS
  	bool "Generic lvds interface LCD panel"
  	select VIDEO_LCD_IF_LVDS
  
  config VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828
  	bool "MIPI 4-lane, 513Mbps LCD panel via SSD2828 bridge chip"
  	select VIDEO_LCD_SSD2828
  	select VIDEO_LCD_IF_PARALLEL
  	---help---
  	 7.85" 768x1024 LCD panels, such as LG LP079X01 or AUO B079XAN01.0
  
  config VIDEO_LCD_PANEL_HITACHI_TX18D42VM
  	bool "Hitachi tx18d42vm LCD panel"
  	select VIDEO_LCD_HITACHI_TX18D42VM
  	select VIDEO_LCD_IF_LVDS
  	---help---
  	7.85" 1024x768 Hitachi tx18d42vm LCD panel support
  
  config VIDEO_LCD_TL059WV5C0
  	bool "tl059wv5c0 LCD panel"
  	select VIDEO_LCD_PANEL_I2C
  	select VIDEO_LCD_IF_PARALLEL
  	---help---
  	6" 480x800 tl059wv5c0 panel support, as used on the Utoo P66 and
  	Aigo M60/M608/M606 tablets.
  
  endchoice
  
  
  config USB_MUSB_SUNXI
  	bool "Enable sunxi OTG / DRC USB controller in host mode"
  	default n
  	---help---
  	Say y here to enable support for the sunxi OTG / DRC USB controller
  	used on almost all sunxi boards. Note currently u-boot can only have
  	one usb host controller enabled at a time, so enabling this on boards
  	which also use the ehci host controller will result in build errors.
  
  config USB_KEYBOARD
  	boolean "Enable USB keyboard support"
  	default y
  	---help---
  	Say Y here to add support for using a USB keyboard (typically used
  	in combination with a graphical console).
  
  config GMAC_TX_DELAY
  	int "GMAC Transmit Clock Delay Chain"
  	default 0
  	---help---
  	Set the GMAC Transmit Clock Delay Chain value.
  
  endif