From: Diego Rondini diego.rondini@kynetics.it
This patch enables boot to USB storage devices by expanding on the list of boot devices.
Because the USB startup currently takes a long time, it places USB at the end of the list of supported devices.
You can over-ride the boot order using the bootdevs environment variable. For instance, this will make USB the first (highest priority) device:
U-Boot > setenv bootdevs usb mmc sata U-Boot > saveenv
Signed-off-by: Diego Rondini diego.rondini@kynetics.it Signed-off-by: Eric Nelson eric.nelson@boundarydevices.com --- include/configs/nitrogen6x.h | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/include/configs/nitrogen6x.h b/include/configs/nitrogen6x.h index 5e9b743..21a25e0 100644 --- a/include/configs/nitrogen6x.h +++ b/include/configs/nitrogen6x.h @@ -173,7 +173,13 @@ #define CONFIG_DRIVE_MMC #endif
-#define CONFIG_DRIVE_TYPES CONFIG_DRIVE_SATA CONFIG_DRIVE_MMC +#ifdef CONFIG_USB_STORAGE +#define CONFIG_DRIVE_USB "usb " +#else +#define CONFIG_DRIVE_USB +#endif + +#define CONFIG_DRIVE_TYPES CONFIG_DRIVE_SATA CONFIG_DRIVE_MMC CONFIG_DRIVE_USB
#if defined(CONFIG_SABRELITE) #define CONFIG_EXTRA_ENV_SETTINGS \ @@ -253,12 +259,16 @@ "run netboot; " #else #define CONFIG_EXTRA_ENV_SETTINGS \ + "bootdevs=" CONFIG_DRIVE_TYPES "\0" \ "console=ttymxc1\0" \ "clearenv=if sf probe || sf probe || sf probe 1 ; then " \ "sf erase 0xc0000 0x2000 && " \ "echo restored environment to factory default ; fi\0" \ - "bootcmd=for dtype in " CONFIG_DRIVE_TYPES \ + "bootcmd=for dtype in ${bootdevs}" \ "; do " \ + "if itest.s "xusb" == "x${dtype}" ; then " \ + "usb start ;" \ + "fi; " \ "for disk in 0 1 ; do ${dtype} dev ${disk} ;" \ "for fs in fat ext2 ; do " \ "${fs}load " \ @@ -274,7 +284,7 @@ "echo ; echo serial console at 115200, 8N1 ; echo ; " \ "echo details at http://boundarydevices.com/6q_bootscript ; " \ "setenv stdout serial\0" \ - "upgradeu=for dtype in " CONFIG_DRIVE_TYPES \ + "upgradeu=for dtype in ${bootdevs}" \ "; do " \ "for disk in 0 1 ; do ${dtype} dev ${disk} ;" \ "for fs in fat ext2 ; do " \