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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <console/console.h>
#include <arch/io.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "sb700.h"
static struct device *find_sm_dev(struct device *dev, u32 devfn)
{
struct device *sm_dev;
sm_dev = pcidev_path_behind(dev->bus, devfn);
if (!sm_dev)
return sm_dev;
if ((sm_dev->vendor != PCI_VENDOR_ID_ATI) ||
((sm_dev->device != PCI_DEVICE_ID_ATI_SB700_SM))) {
u32 id;
id = pci_read_config32(sm_dev, PCI_VENDOR_ID);
if ((id !=
(PCI_VENDOR_ID_ATI | (PCI_DEVICE_ID_ATI_SB700_SM << 16))))
{
sm_dev = 0;
}
}
return sm_dev;
}
void set_sm_enable_bits(struct device *sm_dev, u32 reg_pos, u32 mask, u32 val)
{
u32 reg_old, reg;
reg = reg_old = pci_read_config32(sm_dev, reg_pos);
reg &= ~mask;
reg |= val;
if (reg != reg_old) {
pci_write_config32(sm_dev, reg_pos, reg);
}
}
static void pmio_write_index(u16 port_base, u8 reg, u8 value)
{
outb(reg, port_base);
outb(value, port_base + 1);
}
static u8 pmio_read_index(u16 port_base, u8 reg)
{
outb(reg, port_base);
return inb(port_base + 1);
}
void pm_iowrite(u8 reg, u8 value)
{
pmio_write_index(PM_INDEX, reg, value);
}
u8 pm_ioread(u8 reg)
{
return pmio_read_index(PM_INDEX, reg);
}
void pm2_iowrite(u8 reg, u8 value)
{
pmio_write_index(PM2_INDEX, reg, value);
}
u8 pm2_ioread(u8 reg)
{
return pmio_read_index(PM2_INDEX, reg);
}
static void set_pmio_enable_bits(struct device *sm_dev, u32 reg_pos,
u32 mask, u32 val)
{
u8 reg_old, reg;
reg = reg_old = pm_ioread(reg_pos);
reg &= ~mask;
reg |= val;
if (reg != reg_old) {
pm_iowrite(reg_pos, reg);
}
}
void sb7xx_51xx_enable(struct device *dev)
{
struct device *sm_dev = NULL;
struct device *bus_dev = NULL;
int index = -1;
u32 deviceid;
u32 vendorid;
/* struct southbridge_ati_sb700_config *conf; */
/* conf = dev->chip_info; */
int i;
u32 devfn;
printk(BIOS_DEBUG, "sb7xx_51xx_enable()\n");
/*
* 0:11.0 SATA bit 8 of sm_dev 0xac : 1 - enable, default + 32 * 3
* 0:12.0 OHCI0-USB1 bit 0 of sm_dev 0x68
* 0:12.1 OHCI1-USB1 bit 1 of sm_dev 0x68
* 0:12.2 EHCI-USB1 bit 2 of sm_dev 0x68
* 0:13.0 OHCI0-USB2 bit 4 of sm_dev 0x68
* 0:13.1 OHCI1-USB2 bit 5 of sm_dev 0x68
* 0:13.2 EHCI-USB2 bit 6 of sm_dev 0x68
* 0:14.5 OHCI0-USB3 bit 7 of sm_dev 0x68
* 0:14.0 SMBUS 0
* 0:14.1 IDE 1
* 0:14.2 HDA bit 3 of pm_io 0x59 : 1 - enable, default + 32 * 4
* 0:14.3 LPC bit 20 of sm_dev 0x64 : 0 - disable, default + 32 * 1
* 0:14.4 PCI 4
*/
if (dev->device == 0x0000) {
vendorid = pci_read_config32(dev, PCI_VENDOR_ID);
deviceid = (vendorid >> 16) & 0xffff;
vendorid &= 0xffff;
} else {
vendorid = dev->vendor;
deviceid = dev->device;
}
bus_dev = dev->bus->dev;
if ((bus_dev->vendor == PCI_VENDOR_ID_ATI) &&
(bus_dev->device == PCI_DEVICE_ID_ATI_SB700_PCI)) {
devfn = (bus_dev->path.pci.devfn) & ~7;
sm_dev = find_sm_dev(bus_dev, devfn);
if (!sm_dev)
return;
/* something under 00:01.0 */
switch (dev->path.pci.devfn) {
case 5 << 3:
;
}
return;
}
i = (dev->path.pci.devfn) & ~7;
i += (3 << 3);
for (devfn = (0x14 << 3); devfn <= i; devfn += (1 << 3)) {
sm_dev = find_sm_dev(dev, devfn);
if (sm_dev)
break;
}
if (!sm_dev)
return;
switch (dev->path.pci.devfn - (devfn - (0x14 << 3))) {
case (0x11 << 3) | 0:
index = 8;
set_sm_enable_bits(sm_dev, 0xac, 1 << index,
(dev->enabled ? 1 : 0) << index);
index += 32 * 3;
break;
case (0x12 << 3) | 0:
case (0x12 << 3) | 1:
case (0x12 << 3) | 2:
index = dev->path.pci.devfn & 3;
set_sm_enable_bits(sm_dev, 0x68, 1 << index,
(dev->enabled ? 1 : 0) << index);
index += 32 * 2;
break;
case (0x13 << 3) | 0:
case (0x13 << 3) | 1:
case (0x13 << 3) | 2:
index = (dev->path.pci.devfn & 3) + 4;
set_sm_enable_bits(sm_dev, 0x68, 1 << index,
(dev->enabled ? 1 : 0) << index);
index += 32 * 2;
break;
case (0x14 << 3) | 5:
index = 7;
set_sm_enable_bits(sm_dev, 0x68, 1 << index,
(dev->enabled ? 1 : 0) << index);
index += 32 * 2;
break;
case (0x14 << 3) | 0:
index = 0;
break;
case (0x14 << 3) | 1:
index = 1;
break;
case (0x14 << 3) | 2:
index = 3;
set_pmio_enable_bits(sm_dev, 0x59, 1 << index,
(dev->enabled ? 1 : 0) << index);
index += 32 * 4;
break;
case (0x14 << 3) | 3:
index = 20;
set_sm_enable_bits(sm_dev, 0x64, 1 << index,
(dev->enabled ? 1 : 0) << index);
index += 32 * 1;
break;
case (0x14 << 3) | 4:
index = 4;
break;
default:
printk(BIOS_DEBUG, "unknown dev: %s deviceid=%4x\n", dev_path(dev),
deviceid);
}
}
#if IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_SUBTYPE_SP5100)
struct chip_operations southbridge_amd_sb700_ops = {
CHIP_NAME("ATI SP5100")
.enable_dev = sb7xx_51xx_enable,
};
#else
struct chip_operations southbridge_amd_sb700_ops = {
CHIP_NAME("ATI SB700")
.enable_dev = sb7xx_51xx_enable,
};
#endif
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