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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
// Use simple device model for this file even in ramstage
#define __SIMPLE_DEVICE__
#include <stdint.h>
#include <arch/io.h>
#include <device/pci_ehci.h>
#include <device/pci_def.h>
#include "sb700.h"
#define DEBUGPORT_MISC_CONTROL 0x80
pci_devfn_t pci_ehci_dbg_dev(unsigned int hcd_idx)
{
if (hcd_idx == 2)
return PCI_DEV(0, 0x13, 2);
else
return PCI_DEV(0, 0x12, 2);
}
void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port)
{
u8 *base_regs = pci_ehci_base_regs(dev);
u32 reg32;
/* Write the port number to DEBUGPORT_MISC_CONTROL[31:28]. */
reg32 = read32(base_regs + DEBUGPORT_MISC_CONTROL);
reg32 &= ~(0xf << 28);
reg32 |= (port << 28);
reg32 |= (1 << 27); /* Enable Debug Port port number remapping. */
write32(base_regs + DEBUGPORT_MISC_CONTROL, reg32);
}
void pci_ehci_dbg_enable(pci_devfn_t dev, unsigned long base)
{
/* Set the EHCI BAR address. */
pci_write_config32(dev, EHCI_BAR_INDEX, base);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
}
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