u-boot/arch/x86/cpu/ivybridge/usb_ehci.c
Simon Glass 9baeca4b89 x86: ivybridge: Set up EHCI USB
Add init for EHCI so that USB can be used.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-25 06:34:01 -07:00

29 lines
597 B
C

/*
* From Coreboot
* Copyright (C) 2008-2009 coresystems GmbH
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <asm/io.h>
#include <asm/pci.h>
#include <asm/arch/pch.h>
void bd82x6x_usb_ehci_init(pci_dev_t dev)
{
u32 reg32;
/* Disable Wake on Disconnect in RMH */
reg32 = readl(RCB_REG(0x35b0));
reg32 |= 0x22;
writel(reg32, RCB_REG(0x35b0));
debug("EHCI: Setting up controller.. ");
reg32 = pci_read_config32(dev, PCI_COMMAND);
reg32 |= PCI_COMMAND_MASTER;
/* reg32 |= PCI_COMMAND_SERR; */
pci_write_config32(dev, PCI_COMMAND, reg32);
debug("done.\n");
}