Revert "Add support for Intel Ibex Peak (Mobile 5) southbridge"

This reverts commit 0210119b4b95e84f954cfd6dc11aafbc187421af

Change-Id: I5be3f2a54394c592650a0dcd671e4a72ae796cb2
Reviewed-on: http://review.coreboot.org/3443
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 0 insertions, 429 deletions

diff --git a/src/southbridge/intel/ibexpeak/pch.c b/src/southbridge/intel/ibexpeak/pch.c
deleted file mode 100644
index 942e2e9281..0000000000
--- a/src/southbridge/intel/ibexpeak/pch.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008-2009 coresystems GmbH
- * Copyright (C) 2012 The Chromium OS Authors.  All rights reserved.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <console/console.h>
-#include <delay.h>
-#ifdef __SMM__
-#include <arch/io.h>
-#include <device/pci_def.h>
-#else /* !__SMM__ */
-#include <device/device.h>
-#include <device/pci.h>
-#endif
-#include "pch.h"
-
-static int pch_revision_id = -1;
-static int pch_type = -1;
-
-int pch_silicon_revision(void)
-{
-	device_t dev;
-
-#ifdef __SMM__
-	dev = PCI_DEV(0, 0x1f, 0);
-#else
-	dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
-#endif
-
-	if (pch_revision_id < 0)
-		pch_revision_id = pci_read_config8(dev,	PCI_REVISION_ID);
-	return pch_revision_id;
-}
-
-int pch_silicon_type(void)
-{
-	device_t dev;
-
-#ifdef __SMM__
-	dev = PCI_DEV(0, 0x1f, 0);
-#else
-	dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
-#endif
-
-	if (pch_type < 0)
-		pch_type = pci_read_config8(dev, PCI_DEVICE_ID + 1);
-	return pch_type;
-}
-
-int pch_silicon_supported(int type, int rev)
-{
-	int cur_type = pch_silicon_type();
-	int cur_rev = pch_silicon_revision();
-
-	switch (type) {
-	case PCH_TYPE_CPT:
-		/* CougarPoint minimum revision */
-		if (cur_type == PCH_TYPE_CPT && cur_rev >= rev)
-			return 1;
-		/* PantherPoint any revision */
-		if (cur_type == PCH_TYPE_PPT)
-			return 1;
-		break;
-
-	case PCH_TYPE_PPT:
-		/* PantherPoint minimum revision */
-		if (cur_type == PCH_TYPE_PPT && cur_rev >= rev)
-			return 1;
-		break;
-	}
-
-	return 0;
-}
-
-#define IOBP_RETRY 1000
-static inline int iobp_poll(void)
-{
-	unsigned try = IOBP_RETRY;
-	u32 data;
-
-	while (try--) {
-		data = RCBA32(IOBPS);
-		if ((data & 1) == 0)
-			return 1;
-		udelay(10);
-	}
-
-	printk(BIOS_ERR, "IOBP timeout\n");
-	return 0;
-}
-
-void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue)
-{
-	u32 data;
-
-	/* Set the address */
-	RCBA32(IOBPIRI) = address;
-
-	/* READ OPCODE */
-	if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B0))
-		RCBA32(IOBPS) = IOBPS_RW_BX;
-	else
-		RCBA32(IOBPS) = IOBPS_READ_AX;
-	if (!iobp_poll())
-		return;
-
-	/* Read IOBP data */
-	data = RCBA32(IOBPD);
-	if (!iobp_poll())
-		return;
-
-	/* Check for successful transaction */
-	if ((RCBA32(IOBPS) & 0x6) != 0) {
-		printk(BIOS_ERR, "IOBP read 0x%08x failed\n", address);
-		return;
-	}
-
-	/* Update the data */
-	data &= andvalue;
-	data |= orvalue;
-
-	/* WRITE OPCODE */
-	if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B0))
-		RCBA32(IOBPS) = IOBPS_RW_BX;
-	else
-		RCBA32(IOBPS) = IOBPS_WRITE_AX;
-	if (!iobp_poll())
-		return;
-
-	/* Write IOBP data */
-	RCBA32(IOBPD) = data;
-	if (!iobp_poll())
-		return;
-}
-
-#ifndef __SMM__
-/* Set bit in Function Disble register to hide this device */
-static void pch_hide_devfn(unsigned devfn)
-{
-	switch (devfn) {
-	case PCI_DEVFN(22, 0): /* MEI #1 */
-		RCBA32_OR(FD2, PCH_DISABLE_MEI1);
-		break;
-	case PCI_DEVFN(22, 1): /* MEI #2 */
-		RCBA32_OR(FD2, PCH_DISABLE_MEI2);
-		break;
-	case PCI_DEVFN(22, 2): /* IDE-R */
-		RCBA32_OR(FD2, PCH_DISABLE_IDER);
-		break;
-	case PCI_DEVFN(22, 3): /* KT */
-		RCBA32_OR(FD2, PCH_DISABLE_KT);
-		break;
-	case PCI_DEVFN(25, 0): /* Gigabit Ethernet */
-		RCBA32_OR(BUC, PCH_DISABLE_GBE);
-		break;
-	case PCI_DEVFN(26, 0): /* EHCI #2 */
-		RCBA32_OR(FD, PCH_DISABLE_EHCI2);
-		break;
-	case PCI_DEVFN(27, 0): /* HD Audio Controller */
-		RCBA32_OR(FD, PCH_DISABLE_HD_AUDIO);
-		break;
-	case PCI_DEVFN(28, 0): /* PCI Express Root Port 1 */
-	case PCI_DEVFN(28, 1): /* PCI Express Root Port 2 */
-	case PCI_DEVFN(28, 2): /* PCI Express Root Port 3 */
-	case PCI_DEVFN(28, 3): /* PCI Express Root Port 4 */
-	case PCI_DEVFN(28, 4): /* PCI Express Root Port 5 */
-	case PCI_DEVFN(28, 5): /* PCI Express Root Port 6 */
-	case PCI_DEVFN(28, 6): /* PCI Express Root Port 7 */
-	case PCI_DEVFN(28, 7): /* PCI Express Root Port 8 */
-		RCBA32_OR(FD, PCH_DISABLE_PCIE(PCI_FUNC(devfn)));
-		break;
-	case PCI_DEVFN(29, 0): /* EHCI #1 */
-		RCBA32_OR(FD, PCH_DISABLE_EHCI1);
-		break;
-	case PCI_DEVFN(30, 0): /* PCI-to-PCI Bridge */
-		RCBA32_OR(FD, PCH_DISABLE_P2P);
-		break;
-	case PCI_DEVFN(31, 0): /* LPC */
-		RCBA32_OR(FD, PCH_DISABLE_LPC);
-		break;
-	case PCI_DEVFN(31, 2): /* SATA #1 */
-		RCBA32_OR(FD, PCH_DISABLE_SATA1);
-		break;
-	case PCI_DEVFN(31, 3): /* SMBUS */
-		RCBA32_OR(FD, PCH_DISABLE_SMBUS);
-		break;
-	case PCI_DEVFN(31, 5): /* SATA #22 */
-		RCBA32_OR(FD, PCH_DISABLE_SATA2);
-		break;
-	case PCI_DEVFN(31, 6): /* Thermal Subsystem */
-		RCBA32_OR(FD, PCH_DISABLE_THERMAL);
-		break;
-	}
-}
-
-/* Check if any port in set X to X+3 is enabled */
-static int pch_pcie_check_set_enabled(device_t dev)
-{
-	device_t port;
-	int port_func;
-	int dev_func = PCI_FUNC(dev->path.pci.devfn);
-
-	printk(BIOS_DEBUG, "%s: check set enabled\n", dev_path(dev));
-
-	/* Go through static device tree list of devices
-	 * because enumeration is still in progress */
-	for (port = all_devices; port; port = port->next) {
-		/* Only care about PCIe root ports */
-		if (PCI_SLOT(port->path.pci.devfn) !=
-		    PCI_SLOT(dev->path.pci.devfn))
-			continue;
-
-		/* Check if port is in range and enabled */
-		port_func = PCI_FUNC(port->path.pci.devfn);
-		if (port_func >= dev_func &&
-		    port_func < (dev_func + 4) &&
-		    port->enabled)
-			return 1;
-	}
-
-	/* None of the ports in this set are enabled */
-	return 0;
-}
-
-/* RPFN is a write-once register so keep a copy until it is written */
-static u32 new_rpfn;
-
-/* Swap function numbers assigned to two PCIe Root Ports */
-static void pch_pcie_function_swap(u8 old_fn, u8 new_fn)
-{
-	u32 old_rpfn = new_rpfn;
-
-	printk(BIOS_DEBUG, "PCH: Remap PCIe function %d to %d\n",
-	       old_fn, new_fn);
-
-	new_rpfn &= ~(RPFN_FNMASK(old_fn) | RPFN_FNMASK(new_fn));
-
-	/* Old function set to new function and disabled */
-	new_rpfn |= RPFN_FNSET(old_fn, RPFN_FNGET(old_rpfn, new_fn));
-	new_rpfn |= RPFN_FNSET(new_fn, RPFN_FNGET(old_rpfn, old_fn));
-}
-
-/* Update devicetree with new Root Port function number assignment */
-static void pch_pcie_devicetree_update(void)
-{
-	device_t dev;
-
-	/* Update the function numbers in the static devicetree */
-	for (dev = all_devices; dev; dev = dev->next) {
-		u8 new_devfn;
-
-		/* Only care about PCH PCIe root ports */
-		if (PCI_SLOT(dev->path.pci.devfn) !=
-		    PCH_PCIE_DEV_SLOT)
-			continue;
-
-		/* Determine the new devfn for this port */
-		new_devfn = PCI_DEVFN(PCH_PCIE_DEV_SLOT,
-			      RPFN_FNGET(new_rpfn,
-				 PCI_FUNC(dev->path.pci.devfn)));
-
-		if (dev->path.pci.devfn != new_devfn) {
-			printk(BIOS_DEBUG,
-			       "PCH: PCIe map %02x.%1x -> %02x.%1x\n",
-			       PCI_SLOT(dev->path.pci.devfn),
-			       PCI_FUNC(dev->path.pci.devfn),
-			       PCI_SLOT(new_devfn), PCI_FUNC(new_devfn));
-
-			dev->path.pci.devfn = new_devfn;
-		}
-	}
-}
-
-/* Special handling for PCIe Root Port devices */
-static void pch_pcie_enable(device_t dev)
-{
-	struct southbridge_intel_ibexpeak_config *config = dev->chip_info;
-	u32 reg32;
-
-	/*
-	 * Save a copy of the Root Port Function Number map when
-	 * starting to walk the list of PCIe Root Ports so it can
-	 * be updated locally and written out when the last port
-	 * has been processed.
-	 */
-	if (PCI_FUNC(dev->path.pci.devfn) == 0) {
-		new_rpfn = RCBA32(RPFN);
-
-		/*
-		 * Enable Root Port coalescing if the first port is disabled
-		 * or the other devices will not be enumerated by the OS.
-		 */
-		if (!dev->enabled)
-			config->pcie_port_coalesce = 1;
-
-		if (config->pcie_port_coalesce)
-			printk(BIOS_INFO,
-			       "PCH: PCIe Root Port coalescing is enabled\n");
-	}
-
-	if (!dev->enabled) {
-		printk(BIOS_DEBUG, "%s: Disabling device\n",  dev_path(dev));
-
-		/*
-		 * PCIE Power Savings for PantherPoint and CougarPoint/B1+
-		 *
-		 * If PCIe 0-3 disabled set Function 0 0xE2[0] = 1
-		 * If PCIe 4-7 disabled set Function 4 0xE2[0] = 1
-		 *
-		 * This check is done here instead of pcie driver
-		 * because the pcie driver enable() handler is not
-		 * called unless the device is enabled.
-		 */
-		if ((PCI_FUNC(dev->path.pci.devfn) == 0 ||
-		     PCI_FUNC(dev->path.pci.devfn) == 4)) {
-			/* Handle workaround for PPT and CPT/B1+ */
-			if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B1) &&
-			    !pch_pcie_check_set_enabled(dev)) {
-				u8 reg8 = pci_read_config8(dev, 0xe2);
-				reg8 |= 1;
-				pci_write_config8(dev, 0xe2, reg8);
-			}
-
-			/*
-			 * Enable Clock Gating for shared PCIe resources
-			 * before disabling this particular port.
-			 */
-			pci_write_config8(dev, 0xe1, 0x3c);
-		}
-
-		/* Ensure memory, io, and bus master are all disabled */
-		reg32 = pci_read_config32(dev, PCI_COMMAND);
-		reg32 &= ~(PCI_COMMAND_MASTER |
-			   PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
-		pci_write_config32(dev, PCI_COMMAND, reg32);
-
-		/* Do not claim downstream transactions for PCIe ports */
-		new_rpfn |= RPFN_HIDE(PCI_FUNC(dev->path.pci.devfn));
-
-		/* Hide this device if possible */
-		pch_hide_devfn(dev->path.pci.devfn);
-	} else {
-		int fn;
-
-		/*
-		 * Check if there is a lower disabled port to swap with this
-		 * port in order to maintain linear order starting at zero.
-		 */
-		if (config->pcie_port_coalesce) {
-			for (fn=0; fn < PCI_FUNC(dev->path.pci.devfn); fn++) {
-				if (!(new_rpfn & RPFN_HIDE(fn)))
-					continue;
-
-				/* Swap places with this function */
-				pch_pcie_function_swap(
-					PCI_FUNC(dev->path.pci.devfn), fn);
-				break;
-			}
-		}
-
-		/* Enable SERR */
-		reg32 = pci_read_config32(dev, PCI_COMMAND);
-		reg32 |= PCI_COMMAND_SERR;
-		pci_write_config32(dev, PCI_COMMAND, reg32);
-	}
-
-	/*
-	 * When processing the last PCIe root port we can now
-	 * update the Root Port Function Number and Hide register.
-	 */
-	if (PCI_FUNC(dev->path.pci.devfn) == 7) {
-		printk(BIOS_SPEW, "PCH: RPFN 0x%08x -> 0x%08x\n",
-		       RCBA32(RPFN), new_rpfn);
-		RCBA32(RPFN) = new_rpfn;
-
-		/* Update static devictree with new function numbers */
-		if (config->pcie_port_coalesce)
-			pch_pcie_devicetree_update();
-	}
-}
-
-void pch_enable(device_t dev)
-{
-	u32 reg32;
-
-	/* PCH PCIe Root Ports get special handling */
-	if (PCI_SLOT(dev->path.pci.devfn) == PCH_PCIE_DEV_SLOT)
-		return pch_pcie_enable(dev);
-
-	if (!dev->enabled) {
-		printk(BIOS_DEBUG, "%s: Disabling device\n",  dev_path(dev));
-
-		/* Ensure memory, io, and bus master are all disabled */
-		reg32 = pci_read_config32(dev, PCI_COMMAND);
-		reg32 &= ~(PCI_COMMAND_MASTER |
-			   PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
-		pci_write_config32(dev, PCI_COMMAND, reg32);
-
-		/* Hide this device if possible */
-		pch_hide_devfn(dev->path.pci.devfn);
-	} else {
-		/* Enable SERR */
-		reg32 = pci_read_config32(dev, PCI_COMMAND);
-		reg32 |= PCI_COMMAND_SERR;
-		pci_write_config32(dev, PCI_COMMAND, reg32);
-	}
-}
-
-struct chip_operations southbridge_intel_ibexpeak_ops = {
-	CHIP_NAME("Intel Series 5 (Ibex Peak) Southbridge")
-	.enable_dev = pch_enable,
-};
-#endif