From: Yegor Yefremov <yegorsli...@googlemail.com>
First of all U-Boot would search for a USB mass storage device
with either uEnv.txt or kernel-fit.itb and boot.
If USB mass storage device is not available or doesn't provide
these files then MMC will be tried.
Signed-off-by: Yegor Yefremov <yegorsli...@googlemail.com>
---
include/configs/baltos.h | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/include/configs/baltos.h b/include/configs/baltos.h
index 8efd513..06f5ceb 100644
--- a/include/configs/baltos.h
+++ b/include/configs/baltos.h
@@ -102,7 +102,9 @@
"optargs=\0" \
"mmcdev=0\0" \
"mmcroot=/dev/mmcblk0p2 ro\0" \
+ "usbroot=/dev/sda2 ro\0" \
"mmcrootfstype=ext4 rootwait\0" \
+ "usbrootfstype=ext4 rootwait\0" \
"rootpath=/export/rootfs\0" \
"nfsopts=nolock\0" \
"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
@@ -114,6 +116,11 @@
"${mtdparts} " \
"root=${mmcroot} " \
"rootfstype=${mmcrootfstype}\0" \
+ "usbargs=setenv bootargs console=${console} " \
+ "${optargs} " \
+ "${mtdparts} " \
+ "root=${usbroot} " \
+ "rootfstype=${usbrootfstype}\0" \
"spiroot=/dev/mtdblock4 rw\0" \
"spirootfstype=jffs2\0" \
"spisrcaddr=0xe0000\0" \
@@ -130,15 +137,25 @@
"ip=dhcp\0" \
"bootenv=uEnv.txt\0" \
"loadbootenv=load mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
+ "usbloadbootenv=load usb 0:1 ${loadaddr} ${bootenv}\0" \
"importbootenv=echo Importing environment from mmc ...; " \
"env import -t $loadaddr $filesize\0" \
+ "usbimportbootenv=echo Importing environment from USB ...; " \
+ "env import -t $loadaddr $filesize\0" \
"ramargs=setenv bootargs console=${console} " \
"${optargs} " \
"root=${ramroot} " \
"rootfstype=${ramrootfstype}\0" \
"loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
"loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
+ "usbloadimage=load usb 0:1 ${loadaddr} kernel-fit.itb\0" \
"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
+ "usbloados=run usbargs; " \
+ "bootm ${loadaddr}#conf${board_name}; " \
+ "if test $? -ne 0; then " \
+ "echo Using default FIT configuration; " \
+ "bootm ${loadaddr}; " \
+ "fi;\0" \
"mmcloados=run mmcargs; " \
"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
"if run loadfdt; then " \
@@ -153,6 +170,21 @@
"else " \
"bootz; " \
"fi;\0" \
+ "usbboot=usb reset; " \
+ "if usb storage; then " \
+ "echo USB drive found;" \
+ "if run usbloadbootenv; then " \
+ "echo Loaded environment from ${bootenv};" \
+ "run usbimportbootenv;" \
+ "fi;" \
+ "if test -n $uenvcmd; then " \
+ "echo Running uenvcmd ...;" \
+ "run uenvcmd;" \
+ "fi;" \
+ "if run usbloadimage; then " \
+ "run usbloados;" \
+ "fi;" \
+ "fi;\0" \
"mmcboot=mmc dev ${mmcdev}; " \
"if mmc rescan; then " \
"echo SD/MMC found on device ${mmcdev};" \
@@ -190,6 +222,7 @@
#define CONFIG_BOOTCOMMAND \
"run findfdt; " \
+ "run usbboot;" \
"run mmcboot;" \
"setenv mmcdev 1; " \
"setenv bootpart 1:2; " \
--
2.1.4
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