From: Marcel Ziswiler marcel.ziswiler@toradex.com
Add LCD display support defaulting to VESA VGA resolution. Different resolutions configurable via device tree.
Signed-off-by: Marcel Ziswiler marcel.ziswiler@toradex.com Reviewed-by: Simon Glass sjg@chromium.org --- Changes in v2: fixed PWM instance
arch/arm/dts/tegra20-colibri.dts | 29 +++++++++++++++++++++++++++++ board/toradex/colibri_t20/colibri_t20.c | 18 ++++++++++++++++++ include/configs/colibri_t20.h | 10 ++++++++++ 3 files changed, 57 insertions(+)
diff --git a/arch/arm/dts/tegra20-colibri.dts b/arch/arm/dts/tegra20-colibri.dts index 257ca27..bf14c6b 100644 --- a/arch/arm/dts/tegra20-colibri.dts +++ b/arch/arm/dts/tegra20-colibri.dts @@ -17,6 +17,17 @@ sdhci0 = "/sdhci@c8000600"; };
+ host1x { + status = "okay"; + dc@54200000 { + status = "okay"; + rgb { + status = "okay"; + nvidia,panel = <&lcd_panel>; + }; + }; + }; + usb@c5000000 { dr_mode = "otg"; }; @@ -46,4 +57,22 @@ cd-gpios = <&gpio TEGRA_GPIO(C, 7) GPIO_ACTIVE_LOW>; bus-width = <4>; }; + + lcd_panel: panel { + clock = <25175000>; + xres = <640>; + yres = <480>; + left-margin = <48>; /* horizontal back porch */ + right-margin = <16>; /* horizontal front porch */ + hsync-len = <96>; + lower-margin = <11>; /* vertical front porch */ + upper-margin = <31>; /* vertical back porch */ + vsync-len = <2>; + hsync-active-high; + vsync-active-high; + nvidia,bits-per-pixel = <16>; + nvidia,pwm = <&pwm 0 0>; + nvidia,backlight-enable-gpios = <&gpio TEGRA_GPIO(T, 4) GPIO_ACTIVE_HIGH>; + nvidia,panel-timings = <0 0 0 0>; + }; }; diff --git a/board/toradex/colibri_t20/colibri_t20.c b/board/toradex/colibri_t20/colibri_t20.c index 7210a8a..81d344c 100644 --- a/board/toradex/colibri_t20/colibri_t20.c +++ b/board/toradex/colibri_t20/colibri_t20.c @@ -75,3 +75,21 @@ void pin_mux_usb(void) pinmux_tristate_disable(PMUX_PINGRP_SPIG); } #endif + +#ifdef CONFIG_VIDEO_TEGRA +/* + * Routine: pin_mux_display + * Description: setup the pin muxes/tristate values for the LCD interface) + */ +void pin_mux_display(void) +{ + /* + * Manually untristate BL_ON (PT4 - SODIMM 71) as specified through + * device-tree + */ + pinmux_tristate_disable(PMUX_PINGRP_DTA); + + pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM); + pinmux_tristate_disable(PMUX_PINGRP_SDC); +} +#endif diff --git a/include/configs/colibri_t20.h b/include/configs/colibri_t20.h index d80d352..82a887b 100644 --- a/include/configs/colibri_t20.h +++ b/include/configs/colibri_t20.h @@ -45,6 +45,16 @@ /* General networking support */ #define CONFIG_CMD_DHCP
+/* LCD support */ +#define CONFIG_LCD +#define CONFIG_PWM_TEGRA +#define CONFIG_VIDEO_TEGRA +#define LCD_BPP LCD_COLOR16 +#define CONFIG_SYS_WHITE_ON_BLACK +#define CONFIG_CONSOLE_SCROLL_LINES 10 +#define CONFIG_CMD_BMP +#define CONFIG_LCD_LOGO + /* NAND support */ #define CONFIG_CMD_NAND #define CONFIG_TEGRA_NAND