sunxi: video: Add support for LCD panels which need to be configured via i2c

[u-boot] / board / sunxi / Kconfig

diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 4a2158988fc9bce0d1991d51e72586e7c2af5615..bbb4d1b1e5f7ce802d8cea492142722e4b144b91 100644 (file)
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -149,6 +149,16 @@ 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"
@@ -302,6 +312,14 @@ config VIDEO_LCD_POWER
        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
@@ -326,6 +344,30 @@ config VIDEO_LCD_BL_PWM_ACTIVE_LOW
        ---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 m
+       ---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