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Stefan Roese 3ed9eb93c2 usb: Don't reset the USB hub a 2nd time 
Debugging has shown, that all USB hubs are being reset twice while
USB scanning. This introduces additional delays and makes USB scanning
even more slow. Testing has shown that this 2nd USB hub reset doesn't
seem to be necessary.

This patch now removes this 2nd USB hub reset. Resulting in faster USB
scan time. Here the current numbers:

Without this patch:
=> time usb start
starting USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 9 USB Device(s) found

time: 24.003 seconds

With this patch:
=> time usb start
starting USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 9 USB Device(s) found

time: 20.392 seconds

So ~3.6 seconds of USB scanning time reduction.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Cc: Marek Vasut <marex@denx.de>
 		2016-03-20 18:00:45 +01:00
..
init x86: Fix board init breakage 2016-01-15 08:09:46 -05:00
spl spl_nor: fix warning when compiled for 64bit target 2016-03-15 21:30:20 -04:00
Kconfig Move all command code into its own directory 2016-01-25 10:39:43 -05:00
Makefile fdt: Allow libfdt to be used in SPL 2016-03-14 19:18:26 -04:00
autoboot.c autoboot.c: Fill env vars in process_fdt_options() only if TEXT_BASE is set 2016-02-05 12:47:20 +08:00
bedbug.c
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board_f.c x86: Allow use of serial soon after relocation 2016-03-17 10:27:24 +08:00
board_info.c
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board_r.c dm: timer: Correct timer init ordering after relocation 2016-03-17 10:27:24 +08:00
bootm.c fdt: Allow libfdt to be used in SPL 2016-03-14 19:18:26 -04:00
bootm_os.c VxWorks: fixup MAC address for VxWorks 2015-12-12 15:56:08 -05:00
bootretry.c
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bootstage.c
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bouncebuf.c
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cli.c common: cli: avoid memory leak 2016-01-04 12:25:35 -05:00
cli_hush.c hush: Add rudimentary support for PS1 and PS2 2016-02-08 10:10:37 -05:00
cli_readline.c
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cli_simple.c common: cli_simple: use strlcpy instead of strcpy 2016-01-13 21:05:26 -05:00
command.c Move console definitions into a new console.h file 2015-11-19 20:27:50 -07:00
console.c dm: video: Add a temporary work-around for old stdout var 2016-02-11 21:37:17 +01:00
cros_ec.c
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ddr_spd.c Add more SPDX-License-Identifier tags 2016-01-19 08:31:21 -05:00
dlmalloc.c malloc: remove !gd handling 2016-03-08 15:01:47 -05:00
dlmalloc.src
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edid.c
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env_attr.c
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env_callback.c common: env: initialize scalar variable 2016-01-04 12:25:35 -05:00
env_common.c
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env_dataflash.c
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env_eeprom.c eeprom: Add bus argument to eeprom_init() 2015-11-21 21:50:26 -05:00
env_embedded.c
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env_ext4.c common: Add support for environment file in EXT4. 2016-03-14 14:18:39 -04:00
env_fat.c dm: block: Rename device number member dev to devnum 2016-03-14 15:34:50 -06:00
env_flags.c tools: fix env_flags build 2016-02-15 20:58:25 +00:00
env_flash.c
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env_mmc.c env_mmc: support overriding mmc dev from board code 2016-01-25 10:39:46 -05:00
env_nand.c Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h header 2015-09-11 17:15:20 -04:00
env_nowhere.c
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env_nvram.c
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env_onenand.c
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env_remote.c
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env_sf.c dm: env_sf: fix saveenv() to use driver model 2016-01-27 08:28:40 -08:00
env_ubi.c env_ubi.c: Correct pointer error in env load 2015-11-19 07:32:49 +01:00
exports.c
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fb_mmc.c dm: block: Adjust device calls to go through helpers function 2016-03-14 15:34:50 -06:00
fb_nand.c sparse: Rename the file and header 2015-11-12 13:18:59 -05:00
fdt_support.c Revert "fdt: fix address cell count checking in fdt_translate_address()" 2016-03-17 21:27:39 -06:00
flash.c
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hash.c hash.c: Conditionally compile hash_command, static hash_show 2016-01-13 21:05:08 -05:00
hwconfig.c
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image-android.c image: fix support for Android boot images with no ramdisk 2015-10-11 17:12:10 -04:00
image-fdt.c efi_loader: Call fdt preparation functions 2016-03-15 21:30:14 -04:00
image-fit.c common: image-fit: Fix load and entry addresses in FIT image 2016-03-14 19:18:41 -04:00
image-sig.c
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image-sparse.c sparse: Rename the file and header 2015-11-12 13:18:59 -05:00
image.c image: Add functions to obtain short names 2016-03-14 19:18:28 -04:00
iomux.c Move console definitions into a new console.h file 2015-11-19 20:27:50 -07:00
iotrace.c
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kallsyms.c
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kgdb.c
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kgdb_stubs.c Use correct spelling of "U-Boot" 2016-02-06 12:00:59 +01:00
lcd.c lcd: fix the color testpattern in 16bit mode 2016-01-24 00:38:40 +01:00
lcd_console.c
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lcd_console_rotation.c
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lcd_simplefb.c
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lynxkdi.c
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main.c Remove unused CONFIG_MODEM_SUPPORT option and associated dead code. 2016-02-08 10:22:44 -05:00
malloc_simple.c malloc_simple: Add a little more debugging 2016-03-17 10:27:23 +08:00
memsize.c Revert "common/memsize.c: Simplify RAM size detection" 2016-02-10 08:34:42 -05:00
menu.c
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miiphyutil.c common: miiphyutil: avoid memory leak 2015-12-05 18:22:24 -05:00
s_record.c
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splash.c
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splash_source.c splash_source: add support for filesystem formatted sata 2015-11-16 12:01:35 +01:00
stdio.c stdio: Correct a build error with driver model 2016-01-21 20:42:36 -07:00
system_map.c
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update.c update: tftp: dfu: Extend update_tftp() function to support DFU 2015-09-07 13:41:05 +02:00
usb.c usb: Don't reset the USB hub a 2nd time 2016-03-20 18:00:45 +01:00
usb_hub.c usb: Remove 200 ms delay in usb_hub_port_connect_change() 2016-03-20 18:00:44 +01:00
usb_kbd.c usb: kbd: Prevent out of bound access 2016-01-25 22:00:46 +01:00
usb_storage.c dm: usb: Convert USB storage to use driver-model for block devs 2016-03-14 15:34:50 -06:00
xyzModem.c lib/crc16.c: Rename cyg_crc16() to crc16_ccitt() and add crc start value 2016-03-14 19:18:42 -04:00