[U-Boot] [PATCH v2] mx6cuboxi: Skip usb initialization when booting without HDMI

Fabio Estevam
2015-05-04T17:09:23Z

Starting USB initialization is useful for those who use Cuboxi/Hummingboard
with HDMI and USB keyboard.

However, when booting without a HDMI connection we can skip the usb
initialization, which makes the boot faster.

Signed-off-by: Jon Nettleton <jon.nettleton@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v1:
- Improve commit log (avoid repeating the word 'use').

include/configs/mx6cuboxi.h | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
index 4e07f59..b6f9d4e 100644
--- a/include/configs/mx6cuboxi.h
+++ b/include/configs/mx6cuboxi.h
@@ -80,6 +80,7 @@
#define CONFIG_VIDEO_LOGO
#define CONFIG_VIDEO_BMP_LOGO
#define CONFIG_IMX_HDMI
+#define CONFIG_CMD_HDMIDETECT
#define CONFIG_IMX_VIDEO_SKIP
#define CONFIG_CONSOLE_MUX

@@ -94,7 +95,17 @@
#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
#define CONFIG_USB_KEYBOARD
#define CONFIG_SYS_USB_EVENT_POLL
-#define CONFIG_PREBOOT "usb start"
+#define CONFIG_PREBOOT \
+ "if hdmidet; then " \
+ "usb start; " \
+ "setenv stdin serial,usbkbd; "\
+ "setenv stdout serial,vga; " \
+ "setenv stderr serial,vga; " \
+ "else " \
+ "setenv stdin serial; " \
+ "setenv stdout serial; " \
+ "setenv stderr serial; " \
+ "fi;"

#define CONFIG_SYS_NO_FLASH

@@ -117,9 +128,6 @@

#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
#define CONFIG_EXTRA_ENV_SETTINGS \
- "stdin=serial,usbkbd\0" \
- "stdout=serial,vga\0" \
- "stderr=serial,vga\0" \
"script=boot.scr\0" \
"image=zImage\0" \
"fdtfile=undefined\0" \
--
1.9.1