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nitrogen6x: config: allow boot to USB stick

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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>
This commit is contained in:
Diego Rondini 2014-10-02 12:16:41 -07:00 committed by Stefano Babic
parent 84e2dc0c89
commit 5b7103e0af
1 changed files with 13 additions and 3 deletions
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16
include/configs/nitrogen6x.h
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@ -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 " \