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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
commit b1928b41c0
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source/bootloader/u-boot-2020.01/drivers/usb/host/ohci-ep93xx.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2013
* Sergey Kostanbaev < sergey.kostanbaev <at> fairwaves.ru >
*/
#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) */