brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-07-09 04:36:16 +09:00
Code Issues Projects Releases Wiki Activity
fb75d972ea
u-boot-brain/board/sunxi/Kconfig
Hans de Goede fb75d972ea sunxi: video: Force h/vsync active high when using ext. vga dac on some boards 
On both my A13-OLinuxIno and my A13-OLinuxIno-Micro, the vga output gives an
unstable image when active low v or hsync is used.

The problem seems to be specific to the OLinuxIno A13 (normal & micro)
boards. I've just looked up the schematics and they use an opendrain driver
for the vga sync lines, and with sync pulses it is the logical high->low
edge of the pulse which counts for the timing, which with an active low
sync is being driven by the pull-up, and that simply seems to not drive
it hard enough to get a stable image.

So force v and hsync active high on these boards. independent of what the
modeline says. This fixes the unstable image.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-02-02 13:57:16 +01:00

318 lines
8.4 KiB
Plaintext
Raw Blame History

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.
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.
endif
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
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 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_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.
# 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
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
Reference in New Issue View Git Blame Copy Permalink