u-boot/arch/arm/cpu
Hans de Goede c9f8947e66 sunxi: usb-phy: Never power off the usb ports
USB devices are not really designed to get the power bounced off and on
at them. Esp. USB powered harddisks do not like this.

Currently we power off the USB ports both on a "usb reset" and when
booting the kernel, causing the usb-power to bounce off and then back
on again.

This patch removes the powering off calls, fixing the undesirable power
bouncing.

Note this requires some special handling for the OTG port:
1) We must skip the external vbus check if we've already enabled our own
vbus to avoid false positives
2) If on an usb reset we no longer detect that the id-pin is grounded, turn
off vbus as that means an external vbus may be present now

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-08-08 16:26:19 +02:00
..
arm720t ARM: ARM720t: remove empty asm/arch/hardware.h 2015-04-23 08:52:27 -04:00
arm920t ARM: move -march=* and -mtune= options to arch/arm/Makefile 2015-03-27 16:55:22 +01:00
arm926ejs mxs: Do not disable bo detection when DC-DC is already enabled 2015-06-01 09:21:54 +02:00
arm946es ARM: integrator: abolish CONFIG_INTEGRATOR 2015-04-23 08:52:27 -04:00
arm1136 ARM: move -march=* and -mtune= options to arch/arm/Makefile 2015-03-27 16:55:22 +01:00
arm1176 Merge branch 'u-boot/master' 2015-04-10 14:22:23 +02:00
armv7 sunxi: usb-phy: Never power off the usb ports 2015-08-08 16:26:19 +02:00
armv7m stm32f4: add cpu clock option for 180 MHz 2015-07-27 15:02:14 -04:00
armv8 armv8: caches: Added routine to set non cacheable region 2015-07-31 01:38:12 +02:00
pxa ARM: move -march=* and -mtune= options to arch/arm/Makefile 2015-03-27 16:55:22 +01:00
sa1100 ARM: move -march=* and -mtune= options to arch/arm/Makefile 2015-03-27 16:55:22 +01:00
Makefile ARM: tegra: collect SoC sources into mach-tegra 2015-02-21 08:23:51 -05:00
u-boot-spl.lds dm: arm: Put driver model I2C drivers before legacy ones 2015-07-21 17:39:21 -06:00
u-boot.lds ARM: Clean up CONFIG_ARMV7_NONSEC/VIRT/PSCI conditions 2015-05-13 09:24:13 -07:00