minix/u-boot
1
0
Fork 0
mirror of https://github.com/Stichting-MINIX-Research-Foundation/u-boot.git synced 2025-09-13 05:55:02 -04:00
Code Issues Packages Projects Releases Wiki Activity

tegra: bootcmd: start USB only when needed

Browse Source 
Instead of initializing USB as soon as bootcmd is executed, defer it
until the first boot device that (potentially in the case of network)
uses USB is scanned. This avoids initializing USB when booting from MMC,
so speeds that up.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2012-06-04 10:59:23 +00:00 committed by Albert ARIBAUD (U-Boot)
parent 03cddf28eb
commit f78d348cb8
1 changed files with 11 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/configs/tegra2-common-post.h
View File

@ -58,24 +58,33 @@
#endif
#ifdef CONFIG_CMD_USB
#define BOOTCMD_INIT_USB "run usb_init; "
#define BOOTCMDS_USB \
"usb_init=" \
"if ${usb_need_init}; then " \
"set usb_need_init false; " \
"usb start 0; " \
"fi\0" \
\
"usb_boot=" \
"setenv devtype usb; " \
BOOTCMD_INIT_USB \
"if usb dev ${devnum}; then " \
"run scan_boot; " \
"fi\0" \
\
"bootcmd_usb0=setenv devnum 0; run usb_boot;\0"
#define BOOT_TARGETS_USB "usb0"
#define BOOTCMD_INIT_USB "usb start 0; "
#else
#define BOOTCMD_INIT_USB ""
#define BOOTCMDS_USB ""
#define BOOT_TARGETS_USB ""
#define BOOTCMD_INIT_USB ""
#endif
#ifdef CONFIG_CMD_DHCP
#define BOOTCMDS_DHCP \
"bootcmd_dhcp=" \
BOOTCMD_INIT_USB \
"if dhcp ${scriptaddr} boot.scr.uimg; then "\
"source ${scriptaddr}; " \
"fi\0"
@ -127,7 +136,6 @@
BOOTCMDS_DHCP
#define CONFIG_BOOTCOMMAND \
BOOTCMD_INIT_USB \
"for target in ${boot_targets}; do run bootcmd_${target}; done"
#endif