upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/usb/host/ohci-ep93xx.c

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/*
* (C) Copyright 2013
* Sergey Kostanbaev < sergey.kostanbaev <at> fairwaves.ru >
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
#include <asm/io.h>
#include <asm/arch/ep93xx.h>
int usb_cpu_init(void)
{
struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
unsigned long pwr = readl(&syscon->pwrcnt);
writel(pwr | SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt);
return 0;
}
int usb_cpu_stop(void)
{
struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
unsigned long pwr = readl(&syscon->pwrcnt);
writel(pwr & ~SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt);
return 0;
}
int usb_cpu_init_fail(void)
{
return usb_cpu_stop();
}
#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */