mx6sabresd: Enable video interfaces in bootargs

Generate kernel video bootargs for sabresd, based on a list of needed video
interfaces ("video_interfaces" U-Boot env-var). The order of initialization
and video settings can be fully customized.

Signed-off-by: Nikolay Dimitrov <picmaster@mail.bg>

diff --git a/include/configs/mx6sabre_common.h b/include/configs/mx6sabre_common.h
index 1cb8458b11dfad56c6d964d600994343ea341a42..4858ef16f307522a96413b063eb4c4ce2d3140c5 100644 (file)
--- a/include/configs/mx6sabre_common.h
+++ b/include/configs/mx6sabre_common.h
@@ -120,6 +120,14 @@
 #define EMMC_ENV ""
 #endif
 
+#ifndef VIDEO_ARGS
+#define VIDEO_ARGS ""
+#endif
+
+#ifndef VIDEO_ARGS_SCRIPT
+#define VIDEO_ARGS_SCRIPT ""
+#endif
+
 #define CONFIG_EXTRA_ENV_SETTINGS \
        "script=boot.scr\0" \
        "image=zImage\0" \
@@ -147,8 +155,22 @@
                        "fi; "  \
                "fi\0" \
        EMMC_ENV          \
+       "video_args_hdmi=setenv video_args $video_args " \
+               "video=mxcfb${fb}:dev=hdmi,1280x720M@60,if=RGB24\0" \
+       "video_args_lvds=setenv video_args $video_args " \
+               "video=mxcfb${fb}:dev=ldb,LDB-XGA,if=RGB666\0" \
+       "video_args_lcd=setenv video_args $video_args " \
+               "video=mxcfb${fb}:dev=lcd,CLAA-WVGA,if=RGB666\0" \
+       "fb=0\0" \
+       "video_interfaces=hdmi lvds lcd\0" \
+       "video_args_script=" \
+               "for v in ${video_interfaces}; do " \
+                       "run video_args_${v}; " \
+                       "setexpr fb $fb + 1; " \
+               "done\0" \
        "mmcargs=setenv bootargs console=${console},${baudrate} " \
-               "root=${mmcroot}\0" \
+               "root=${mmcroot} " \
+               VIDEO_ARGS "\0" \
        "loadbootscript=" \
                "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
        "bootscript=echo Running bootscript from mmc ...; " \
@@ -156,6 +178,7 @@
        "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
        "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
        "mmcboot=echo Booting from mmc ...; " \
+               VIDEO_ARGS_SCRIPT \
                "run mmcargs; " \
                "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
                        "if run loadfdt; then " \

diff --git a/include/configs/mx6sabresd.h b/include/configs/mx6sabresd.h
index 95c7485f7f859a783733c85b6a8982c51b54fada..a00cdb5a58d7d657fbe7f1c01c2d5b518d858ead 100644 (file)
--- a/include/configs/mx6sabresd.h
+++ b/include/configs/mx6sabresd.h
@@ -31,6 +31,9 @@
 
 #define CONFIG_SUPPORT_EMMC_BOOT /* eMMC specific */
 
+#define VIDEO_ARGS        "${video_args}"
+#define VIDEO_ARGS_SCRIPT "run video_args_script; "
+
 #include "mx6sabre_common.h"
 
 #define CONFIG_SYS_FSL_USDHC_NUM       3